DXP40 Instruction Manual

Model DXp-40 Operator’s Manual

NOTE: Click on any Table of Contents or Appendix Section Heading (following 3 pages) to navigate that Section

Table of ContentsSECTION 1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-1

1 .1

INTRODUCTION .. . . . . ..:. . . . . . . . . . . : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .1 .1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .1 .2 On-Line Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .1 .3 Dynamic Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .1 .4 Digital Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-1

1 .2 OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .2 .1 Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .2.2 Display Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .2.3 Terminal Computer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-11 .2.4 MODBUS RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-31 .2.5 Allen-Bradley Remote I/O Network Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-3

1 .3 DXp-40 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . Page 1-31 .4 DXp-40 ORDERING INFORMATION DXp-40 [M]-[C]-[P]-[S] . . . . . . . . . . . . . . . . . . . . . Page 1-41 .5 WARRANTY POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-51 .6 FIELD ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1-5

SECTION II Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1

2.1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-12.1 .1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-12.2 MOUNTING . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-12.3 ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-2

2.3 .1

Transducer Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-22.3.2 Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . Page 2-22.3.3 Mains (AC) Power (Figure 2-4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . Page 2-32.3.4 Auxiliary 1/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-32.3.5 Optional Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-32.3.6 Optional Remote Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . Page 2-32.3.7 Optional Discrete Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2-3

SECTION 111 Calibration

3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . Page 3-13.2 SETUP PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-2

3.2 .1

Calibration Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.2 Number Of Load Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.3 Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.4 Decimal Point Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.5 Capacity . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.6 Count By . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-23.2.7 Zero Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-2

3.3 MILLIVOLT PER VOLT TYPE CALIBRATION (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-43.3 .1

Load Cell Calibration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-43.3.2

Entering mVN Calibration Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-43.3.3 Acquire Deadload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-4

3.4 DEADLOAD TYPE CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . Page 3-83.4 .1

Perform Corner Test (Sensitivity Adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-83.4.2 Acquire Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-83.4.3 Span Point Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3-8

SECTION IV

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4-1

4.1

GENERAL .. . . . . . . . . ... . . . .. . . . . . . . . . . . . . . . . . . . . .. . .. . . . .. . . . . .. . . . . .. . . . . . . . . . . .. . . . .... . . . .. . . . . . . .. . . . . . ... . . . Page 4-1

4.2 GROSS WEIGHT WEIGHING . . . . . . . . .. . .. . . . .. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . ... . . . Page 4-1

4.3 ZERO OPERATION . . .. . . . . . . . . . .. . . . . . . . . . .. . .. . . . .. . . . . . . . . . . .. . . . . . . . . . . . . . . . .... . . . . . . . . . . . ... . . . . . .. . . . Page 43

4.4 NET WEIGHT WEIGHING . . ... . . . . . . . . . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . . . . . . . .... . . . . . . . . . . . .. . . . . . . .. . . . Page 4-3

4.5 TARE OPERATION . . .. . . . . . . . . .. . . . . . . . . . . . . . .. . . . .. . . . . .. . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . .. .. . . . Page 434.6 VIEW INDIVIDUAL CELL DATA . . . . .. . . .. . . . .. . . . . .. . . . . .. . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . ... . . . . Page 43

4.7 ERROR DETECTION AND CORRECTION . .. . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . Page 43

SECTION V Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5-1

5.1 GENERAL . . . ... . . . ... . . . . . . . . . .. . . . .. . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . Page 5-1

5.2 FILTER PARAMETERS .. . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . Page 5-1

5.3 OPTIONAL DYNAMIC FILTER . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . Page 5-3

5.3.1

Band Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5-35.3.2 Noise Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5-35.3.3 Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5-35.3.4 Default Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5-3

5.4 MOTION DETECTION (Standard) .. . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . .. . . . . . Page 5-4

5.4 OPTIONAL SECOND FILTER . . . . . . . . . . . .. . . . . . . . . . .. . . . . .. . . . . . . . . . . . . . . . ... . . . . . . . . . . . . .. . . . . .. . . . . . Page 5-4

SECTION VI Optional Diagnostic Testing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6-1

6.1 GENERAL . . . . ... . . . ... . . . . . . . . ... . . . .. . . . . . . . . . .. . . .. . . . . . . . . . ... . . . .. . . . . . . . . . ... . . . .. . . . . . .. . . . . . . ... . . . .... . . . Page 6-1

6.2 DIAGNOSTIC TESTS . . . .. . . . . .. . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . ... . . . . .. . . . . . . .. . . . . . .. . . . . Page 6-3

6.2.1

Load Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6-46.2.2 Zero Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6-56.2.3 Drift Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . Page 6-66.2.4 Noise Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . Page 6-76.2.5 Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . Page 6-86.2.6 Recall Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6-962.7 Degrade Mode Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . Page 6-106.2.8 Remote Input Enables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6-11

SECTION VII Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7-1

7.1

GENERAL . . . . . . .. . . . .... . . . . . . . . . .. . . .. . . . . .. . . . . . . . .. . . . ... . . . . .. . .. .. . . . . . . . . . . . . . . . . . .. . . . . .. . . . . . ... . . . .. . . . Page 7-1

7.1 .1

LCp-400 Digi System Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7-17.1 .2 Standard Simplex Output (Continuous Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7-17.1 .3 Optional Computer/Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7-27.1 .4 Optional Modbus Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . Page 7-57.1 .5 Optional Allen Bradley Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . Page 7-9

SECTION VIII Process Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . Page 8-1

8.1 GENERAL . . . . . . . .. . . . . ... . . . .. . . . . . . . . . .. . . . . . . . . . . . . . .. . . . ... . . . .. . . . .. . . . . ... . . . . . . . . . . . .. . . . . . . .. . . . .. . . . . . .. Page 8-1

8.2 OPTIONAL ANALOG OUTPUT . . . . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . .. . . . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . Page 8-2

8.3 OPTIONAL DISCRETE INPUTS and OUTPUTS . . .. . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . Page 8-3

8.3.1 Inputs . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8-38.3.2 Outputs . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8-4

Appendix A - Spare Parts, Docurimentation, and Accessories

Appendix B - Outline and Wiring Drawings

Trademark Usage Acknowledgements

Allen-Bradley is a trademark ofAllen-Bradley Company, Inc.PLC and PLC-5 are trademarks ofAllen-Bradley Company, Inc.Modbus is a trademark of Schneider Automation

1 .1 INTRODUCTION

1 .1 .1 General DescriptionThe DXp-40 transmitter (Figure 1-1) is a microproces-sor based device designed to convert the mV/V signalfrom up to four individual strain gage type forcetransducers (load cells) into a digital signal repre-senting force, weight, or percent of spanmeasurement units . Individually regulated, fault pro-tected 10 Vdc excitation is supplied to eachtransducer . Units operate at either 115 or 230 Vac .Standard DXp-40 transmitters are housed in NEMA 4enclosures . NEMA 4X or explosion-proof enclosuresare available as options . The digital RS-485 serialoutput port is configured for various baud rate andprotocol selections using a series of DIP switches .Entry of calibration data, diagnostic parameters, andfilter selections is accomplished using a series ofpushbutton switches . Figure 1-2 presents an overallflow diagram for establishing the calibration and sys-tem operating parameters which will be discussed inthe following chapters . An internal multi-line LCD dis-play is provided for viewing the setup sequence,diagnostic information, and live operation .

Instrument features include an RS 485 serial port withBLH Digi-System network or a simplex output proto-col, four A/D converter channels, 10 volt excitation perchannel, digital filter, and a NEMA 4 mild steel,painted enclosure . Standard instruments are de-signed to meet Class I, II, Division 2, Group A-Ghazardous location requirements .

1 .1 .2 On-Line DiagnosticsWeigh system diagnostics can be communicated fromthe DXp-40 serial port to a host computer . This realtime information regarding system performance en-ables the host process computer to notify an operatorand/or re-configure the system to go into degradedmode operation .

1 .1 .3 Dynamic Digital FilterThe dynamic digital filter uses statistical charac-terization of process noise to derive optimum filteringsettings . Once the noise is characterized, the opera-tor selects the combination of averaging and filtercutoff bands needed to maintain both display stabilityand fast response time for better set point control .

1 .1 .4 Digital CalibrationDigital calibration uses a factory calibration curve em-bedded in firmware to establish a reference betweenweight (force) and mVN. This allows an operator toset-up and calibrate a weigh system without the needfor deadweights or other time consuming calibrationmethods . For systems with mechanical interactions,this calibration method can be modified to correct forsystem non-linearities

SECTION IGeneral Information

Page 1 - 1

Figure 1-1 . DXp-40 Weight Transmitter

1 .2 OPTIONS

1 .2.1 Mounting OptionsFor corrosive, hose down, or sanitary environments, aNEMA 4X stainless steel enclosure is available . Anexplosion proof enclosure is available for Class l, II,Division 1, Group B-G locations . Note : BLH 406 or408 Intrinsic Safety Barriers must be specified forweigh systems located in a Division I area .

1 .2.2 Display WindowTo allow viewing of the internal multi-line display at alltimes, units may be ordered with a front door panelpolycarbonate window. Window units also have abrighter vacuum fluorescent type display panel foreven greater visibility . See paragraph 1 .3 for displayspecifications and Figure 2-1 for outline dimensions .

1 .2.3 Terminal Computer InterfaceThe terminal/computer interface option provides a sim-ple mnemonic half-duplex ASCII communicationsprotocol via a built-in macro language consisting of 1to 3 character command strings (reference Table 7-3) .

This powerful feature allows direct keyboard control(using easily remembered commands) of DXp-40 op-eration and recall of weight values (gross, net, tare,zero, balance, etc.)

Easily learned macro language syntax greatly simpli-fies the writing of a host computer communicationinterface (customer supplied) .

0

9810

¬0

10

10

¬o

10

18

12

10

18

1110

~1ro

C 210

10 s 0 1010 10

18

12

10

1/

10

t04 24to

10to

10 c

7781

Figure 1-2. DXp-40 Calibration and ConfigurationPage 1 - 2

0 0 n10 1 1 10

c 10

d

C Y C -6- 12 1/

8 0 ¬0

O t ~1

t0 ° 10 0 10

"10 !0 e0

11 11 10

10 10

to j to j to

4 4

pOOQ

10

111

10R.o 2 ,0 ---

¬0 10 10

1 .2.4 MODBUS RTU ProtocolMODBUS is often recognized as an industry standardmethod of digital communication protocol between amaster or host computer and a slave device . Thisprotocol was originally developed by Modicon to com-municate discrete and analog information .-betweenPLCs. As implemented in the DXp-40, this protocolefficiently communicates weight and diagnostics infor-mation to a MODBUS driver equipped host .

1 .2.5 Allen-Bradley Remote I/O Network InterfaceThe Allen-Bradley Remote I/O interface is a communi-cation link that supports remote, time critical I/Ocontrol communications between a master processorand a remote I/O slave . It is typically used to transferI/O bit images between the master and slave .

1 .3 DXp-40 SPECIFICATIONSPerformance

Internal Resolution

4,194,304 total countsMax . Display Resolution

3,000,000 total countsMax. Resolution Per Channel 750,000 countsConversion Speed

50 msec (20 updates/sec)Sensitivity (Noise)

0.0011% full scale(max ±16 counts w/o filter)

Full Scale Range

35 mV/channelDead Load Range

100%Input Impedance

10 M-ohms, min . per channelLoad Cell Excitation

10 V 2 x 350 ohm load cells,65 mA/channel maxuser configurable on each channel± 0.0015% of full scale0 .3 gV per count50 to 6400 msecmulti-variable up to 64 seconds

Remote SenseLinearityCalibration RepeatabilitySoftware Filter (Std .)Dynamic Digital Filter (Opt.)

Temperature Coefficient'!' 2ppM`Cone conversion100db@60Hz100 db above 35Hz

Span2eroStep ResponseCommon Mode Rej .Normal Mode Rej.

EnvironmentOperating TemperatureStorage TemperatureHumidityVoltagePowerParameter StorageEMI/RFI

EnclosureDimensions

Internal Display/Operator InterfaceHigh-Contrast LCD or

2 columns of 20Optional Vacuum

characters eachFluorescentInterface

4 'soft buttons'

Isolated Analog OutputTypeVoltageCurrent

-10 to 55°C (12 to 131°F)-20 to 85°C (-4 to 185°F)5 to 90% rh, non-condensing117/230 ± 15% 50/60 Hz12 watts maxEEPROMshielded from typical industrialinterference

see outline dimensions - Figure 2-1

16 bit digital to analog0-10V (25k ohm min load)4-20 mA (600 ohm max load)

Page l - 3

The DXp-40 represents a quarter (1/4) Rack of dis-crete I/O with 32 bits of input and output image files tothe scanning PLC . All weight data and status infor-mation uses discrete reads and writes to communicatescale information to the PLC in the shortest time pos-sible . Discrete transfers also are used to upload anddownload non-time critical information such as calibra-tion and lower priority diagnostic data .

Relay Outputs (optional)Closed Contact or

28Vactdc @ 0.4 amps (max .)Solid State

110/220 Vac @1 .0 amp

Digital Inputs (optional)12-24 Vdc Input or TTL Open CollectorLogic'0' (Low)

less than 5 .0 Vdc, sink 3 mA (min)Logic'1' (High)

10 to 28 VdcMechanical RelayRelay '0'

dosed (one side = digital common,the other side = input)

Relay '1'

open (input internally pulled up)

BLH Digi-System NetworkType

RS-485 half duplex (multi-drop)Baud

9.6K, 28.8K, and 56.7kData Format

proprietary

Standard Simplex Data Output (Transmit Only)Type

RS-485 simplexBaud

1200 or 9600Data Format (Selectable)

ASCII

7 data bitseven paritystop bit

Terminal/Computer InterfaceInterface Type

RS-485 half duplexBaud

1200 or 9600Protocol

duplex command/response formatASCII

7 data bitseven paritystop bit

Special Protocol (optional)Modbus

RTU, protocol - slave

Special Interface (optional)Allen Bradley Remote 1/O

represents 1/4 rack of discrete dataalso supports block transfer

WeightNEMA 4/4X

approx . 12 .0 Ib

1 .4 DXp-40 ORDERING INFORMATION

DXp-40 [M]-[C]-[P]-[S]-[O]

[M] Mounting(1)

NEMA 4 painted - standard(2)

NEMA 4X stainless steel(3) _

NiEMA 7 & 9 EX Enclosures for Class I, II, DIV . 1, 2, Grp . B - G(5)

#2 with Polycarbonate Window and integral VFD display(8)

#1 & FM/CSA approval (Class I II 111, Div 2, Group ABCD FG)(9)

#2 & FM/CSA approval (Class I II 111, Div 2, Group ABCD FG)(11)

#9 with Polycarbonate Window and integral VFD display

[C] Communication(1)

RS 485 Network(2)

#1 and Terminal/Computer Interface, ASCII protocol(4)

Allen Bradley Remote I/O (Note : RS-485 Deleted)(5)

#1 and MODBUSTm RTU (may require RS-485 to RS-232serial conversion)

[P]Process Output(1) None(2)

0-10V/4-20 mA Analog (includes switchable filter)& 4 Inputs/Outputs With Dry Contact Relays (not availablewith FM approval)

(3)

0-10V/4-20 mA Analog (includes switchable filter)& 4 Inputs/Outputs With Solid State Relays

[S]Software(7)

Standard Includes :Keypad CalibrationDynamic Digital FilteringOn-Line DiagnosticsDegrade Mode Software

[O]Calibration(1)

Default Calibration

AccessoriesConduit Fitting Kit (6 connectors) P/N 465231Cable Fitting Kit (6 connectors) P/N 465232

1 .5 WARRANTY POLICY

BLH warrants the products covered hereby to be freefrom defects in material and workmanship . BLH's li-ability under this guarantee shall be limited to repairingor furnishing parts to replace, f.o.b . point of manufac-ture, any parts which, within one (1) year from date ofshipment of said product(s) from BLH's plant, fail be-cause of defective workmanship or material performedor furnished by BLH . As a condition hereof, such de-fects must be brought to BLH's attention forverification when first discovered, and the material orparts alleged to be defective shall be returned to BLHif requested . BLH shall not be liable for transportationor installation charges, for expenses of Buyer for re-pairs or replacements or for any damages from delayor loss of use for other indirect or consequential damages of any kind .

BLH may use improved designs ofthe parts to be replaced . This guarantee shall not ap-ply to any material which shall have been repaired oraltered outside of BLH's plant in any way, so as inBLH's judgment, to affect its strength, performance, orreliability, or to any defect due in any part to misuse,negligence, accident or any cause other than normal

Notice :BLH Electronics, Inc . makes no representation orwarranties of any kind whatsoever with respect tothe contents hereof and specifically disclaims anyimplied warranties or merchantability or fitness forany particular purpose . BLH Electronics, Inc . shallnot be held liable for errors contained hererin or forincidental or consequential damages in connectionwith the furnishing, performance, or use of this publi-cation or its contents .

BLH Electronics, Inc . reserves the right to revise thismanual at any time and to make changes in the con-tents hereof without obligation to notify any person ofsuch revision or changes .

and reasonable use, nor shall it apply beyond theirnormal span of life to any materials whose normalspan of life is shorter than the applicable period statedherein . In consideration of the forgoing guarantees, allimplied warranties are waived by the Buyer, BLH doesnot guarantee quality of material or parts specified orfurnished by Buyer, or by other parties designated bybuyer, if not manufactured by BLH. If any modifica-tions or repairs are made to this equipment withoutprior factory approval, the above warranty can becomenull and void .

1 .6 FIELD ENGINEERING

Improper DXp-40 installation or usage may result insystem damage. Please follow instructions carefully .BLH Electronics, Inc. will not accept any liability forfaulty installation and/or misuse of this product.Authorized BLH Field Service Engineers are availablearound the world to install DXp-40 transmitters and/ortrain factory personnel to do so. The field service de-partment at BLH is the most important tool to assurethe best performance from your application . Fieldservice phone numbers are listed below .

Call (Factory Number)(781) 821-2000

Ask for Field Service

Midwest(614) 476-6453

Southeast(803) 851-7470

In Canada, Call(416) 251-2554

or(800) 567-6098 Toll Free

2.1 INTRODUCTION

2.1 .1 General

The DXp-40 is designed to be installed within thelength of the load cell(s) cable which is normally 35 ftor less . Standard NEMA 4 or optional NEMA 4X en-closures are suitable for outdoor or washdown typeenvironments . Both enclosures are provided with pre-punched holes for installing conduit or cable fittingsand holes for mounting to a bracket or wall .

SECTION IIInstallation

2.2 MOUNTING

The NEMA 4 and NEMA 4X enclosures are equippedwith four pre-punched holes for mounting to a wall orbracket . A U-bolt can be used for mounting to a pipesupport . The instrument should be installed in a vi-bration-free location within the normal length of theload cell cables . If conduit is used, drains should beprovided to reduce the possibility of condensate enter-ing the enclosure . Outline dimensions for the standardDXp-40 transmitter are presented in Figure 2-1 .

Figure 2-1 . DXp-40 Outline DimensionsPage 2-1

NOTE: Outline dimensions shown with optional dis-play window. Dimensions in inches.

2.3 ELECTRICAL

2.3.1 Transducer Inputs

Up to four load cells, one per channel, can be con-nected to the DXp-40 . Connect individual load cellsdirectly to the circuit board connectors as shown inFigure 2-2 . Excitation and signal connection locationsare clearly marked according to function and standardcolor code. When remote sensing is not used (mostcases), connect -SENSE to -EXCITATION and+SENSE to +EXCITATION. Note: If tension load cellsare used, signal leads (red/white) must be reversed.

If a deadweight or substitution method of calibration isbeing used, the load cell cable can be shortened asrequired . The leads should be re-tinned before thefinal connection is made.

e00

0 000

00

0

BAUD SELRATE ADDR123145678

Figure 2-2. Load Cell Connections

SWa

t? (AW W

R..NW9

! s 1 +++vLAJ

SW2

X W

LooX_JW N V) VS V) W W

1 ! I +++of

NOTE: When tension or universal type load cells areused, it may be necessary to reverse the polarity ofthe signal leads to obtain a positive signal input to theDXp.

NOTE : All system load cells must be connected dur-ing power-up in order to turn on all A/D channelinputs .

2.3.2 Serial Communication

A terminal connector is provided for RS-485 wire con-nections (Figure 2-3) . Multiple DXp transmitters,networked together, are wired in a parallel configura-tion with a termination jumper installed on the lastinstrument. A pair of twisted wires (20-24 gauge, Bel-don #9501) is all that is required for interconnection .Communication lines should not be run near ac volt-age power lines .

SW3

RESET

Figure 2-3. Serial Output Connections Connections (Shaded)

Page 2-2

RTSTxD

RxDGND-'

SIP

1/4 A SB250 VAC

2.3.3 Mains (AC) Power (Figure 2-4)A screw terminal is provided for permanent transmitterpower connection . All units are shipped from the fac-tory configured for 115 Vac operation . To select 230Vac operation, change SW1 on the base or 'mother'board (see Figure 2-4) to the 230V setting . The unitwill operate within specification at 50 or 60 Hz. Be-fore connecting power to the unit, verify that theproper power selection has been made. The two po-sition terminal block is equipped with a clear plasticcover to prevent operator injury . Cable can be eithersolid or stranded 12 or 14 gage with a ground conduc-tor .

The transmitter is protected with a 1/4 amp slow blowfuse, located adjacent to the mains terminal block . Ifthe fuse opens, replace it with the same type and cur-rent rating .

2.3.4 Auxiliary 110 PortsThe auxiliary I/O port connections are factory testports and are not useful to an operator .

2.3.5 Optional Analog OutputWith the analog option installed, a three position ter-minal connector is provided for 4-20 mA, 0-10 V, andcommon connections (Figure 2-5) . As with serialcommunication, the wiring should be routed awayfrom ac power lines and other sources of EMI . Thecurrent output is essentially immune to noise and canbe transmitted long distances . The voltage output issusceptible to EMI/RFI and should be used only forshort distances . Always use twisted pair, shielded ca-ble .

2.3.6 Optional Remote InputsIf the remote input option is installed, the gross/net,zero, tare, and filter functions can be activated usingexternal push button switches or TTL signals . Whenusing an external TTL device, 5 Vdc must be suppliedand the device TTL common connected to the DXp-40

Figure 2-4 . Ac Power Connections and Fuse

Page 2-3

115/220 VAC 50-60 HzWARNING

C IECK POQTION OF VOL.TAOEACTOR SNRTCti EIEFORE POWER6 APPUM

common connector. Inputs are designated as digital(DIG) common and 1-4 (Figure 2-5) and function asdefined in the following table :

2.3.7 Optional Discrete OutputsUnits equipped with optional outputs have either four,dry contact, 28 volt (ac/dc) relays capable of handling0.4 amps each or four, solid state, 117 Vac triac re-lays capable of handling 1 amp each. Customerordering specifications (paragraph 1 .4, topic 'P') deter-mine which type of realys are installed . Figure 2-5shows the relay output wiring configuration . Para-graph 8.2 describes how the relays can be configuredfor different uses, depending upon the system applica-tion . Units are factory set in the normally openconfiguration .

NOTE: Discrete outputs are not available with mount-ing options 8 and 9 (see paragraph 1 .4) .

Analog Remote

RelayOutputs Inputs Outputs

'f N! N .-

U Z 2 2 2~j 7 U (7 C7 C7 Ua a a a s

U 2 U Z U Z U 2

& 9 V & e ' > >

Figure 2-5 . Optional I/O Connections

Input # Open ClosedDIG IN 1 Gross NetDIG IN 2 --- ZeroDIG IN 3 ---- TareDIG IN 4 Filter 1 Filter 2

3.1 GENERAL

Calibration is the fourth step in the DXp-40 parameterentry menu (Figure 3-1) . Setup and calibration is ac-complished easily using the internal LCD display andits three switches .

li® oMM sm

® O lW2 O

MEW

Main Menu (Accessed from Operation Mode)

"100000 LB GROSSND GM SRO

DIGITAL FLTER SETUPYES NO DOT

CELL DIAGNOSTICSYES NO EXIT

DO CALIBRATION?YES NO EXfT

ANALOG OUTPUT SETUP?YES NO EXIT

SETPOINTS ?YES NO EXIT

MODBUS NTERFACE?YES NO EXIT

BLH DXP40

VER i0OPTIONS -1-2-1

SECTION IIICalibration

® .&A" RwW

Complete calibration is accomplished in two phases,scale setup and either millivolt per volt or deadloadcalibration as shown in Figure 3-2 . Use the full cali-bration flow diagram insert on the following page forguidance throughout the calibration procedure .

LIVE WEIGHT DISPLAY, GROSS (NODEMW MW - Advance To DglW Flier Setup Unless ErrorSWt

M_

Dlaplny Ixlvidusl Load GlsSW2 NET _

Switch To Net ModeSW3 ZERO . . Push To Zero

YES to enter/alter Digital Filtering ParametersMENU MENU _ Advance To 'Cell DkW=tlceSWI

YES _

Enter Or Alter Filter ParametersSW2 NO _

Go To Col DtagmosticsSW3 EXIT .. Return To Live operation

CHECK : Load Shn Zero Shift, Drift, Note, Raw DataMENU MENU - Advance To 'Do Celbratlon'SWI

YES _

Perform Dle®nostlc EvaluationSW2 NO _

GoTo Do calibrationSW3 EXIT ..

Return To Uve Operation

YES to Perform System CalibrationMENU MENU - Return To Uve operationSWf

YES _

Enter Or Alter Calabretion Set*WSW2 NO -

Return To Uve OperationSWS EX r _ Return To Uve Operation

YES To Enter/Alter Analog Output ParametersMENU M U - Advance To 'Setpohts?Swl

YES -

Enter/Alter Anebg output ParametersSW2 NO-

GoTb Seypolrda?SW3 EXIT -

Return To Live Operation

YES To Configure Relay Output FtnctlonsMENU MENU - Advance To MODBUS Interface?SWt

YES -

Configae Set Point Relay outputsMW NO -

Go To MODBUS Interface?SW EXIT ..


YES To Configure MODBUS Carnxmication ParametersMENU MENU - Advance To 'DXP40 Version Information'SWt

YES -

Contigtre MODBUS InterfaceSW2 NO _

DoTo 'DXP40 Version Information'SW3 EXIT _


View Software Version* and Option StatusMEM1 MENU - Return To Uve Operation

Figure 3-1 . DXp-40 Main Menu Showing Calibration' Display

Page 3-1

3.2 SETUP PARAMETERS

Setup establishes scale operating parameters such assystem capacity, decimal point location, display units(pounds, kilograms, tons), total number of load cells,and others . To enter or alter operating . parameters,select YES for 'MODIFY SCALE SETUP?' in Figure3-2 and proceed to Figure 3-3 .

3.2 .1 Calibration TypeDXp-40 transmitters offer two types of system calibra-tion, digital or deadload . In the past, weigh systemscould only be deadload calibrated by placing knownquantities of dead weight upon the scale to establishvoltage to weight equivalent points . In the DXp-40,however, since each load cell has its own A/D con-verter with embedded mVN calibration, calibration canbe accomplished simply by entering known mVNweight values from a load cell calibration sheet .Choose the calibration type to be performed .

3.2.2 Number Of Load CellsEnter the number of system load cells from 1 to 4 .

MEW

KSM

DO CALIBRATION?YES NO EXITswlC?F" I

MODFY SCALE SET UP?YES NO EXIT

am SW2

C7

If Dealload Type Calibration 4 Selected

If mV/V Type Calibration to Selected (optional)

ENTER mV/V CAL DATA?YES NO EXfT

77

ACQUIRE DEADLOAD?YES NO EXT

how awl am SW3

DO DEADLOAD CAL?YES NO EXIT

Mau awl sw2 sws

" WWI% Fraeeed

Figure 3-2 . DXp-40 Calibration Menu

Page 3-2

3.2.3 Display UnitsDesignate the desired display unit type by entering LB(pounds), KG (kilograms), or TN (tons).

3.2.4 Decimal Point LocationPosition the decimal point as desired for weight displayand serial printouts .

3.2.5 CapacityEnter the system total capacity value . A capacity of10,000 will be 10.000, 100.00, 1000.0, or 10,000 rela-tive to decimal point selection .

3.2.6 Count ByDefine the count value of each display increment byselecting 1, 2, 5, or 10 (note that decimals apply) .

3.2.7 Zero BandChoose a zero bandwidth (gross weight zero function)of 2%, 20%, or 100% of system capacity . If OFF isselected, the gross weight ZERO function is not avail-able .

YES to Perform System CalibrationMENU MEW - Return to Live OperationSW1

YES _

Enter or Alter Calibration ParametersSW2 NO _

Return to Live OperationSW3

EXIT .-

Return to Live Operation

YES To Enter/After Capacity, Decimal Point, Countby,Zero Band, mV/V or Deadloed Cal, # of Cells. UnitsMENU MENU - Back Up To Previous DisplaySWt

YES _

Enter System Parameters - Figure 3-3SW2 NO -

Step To mv/V or Deadload CalSW3 EXIT _

Ream To Do Calibration?

YES To Perform mV/V CalibrationMENU MENU _ BACk Up To Previous DisplaySW1

YES _

Perform rrVN CaBtratkm - Figure 3-5SW2 NO _

Step To ACWte Deadbad?SW3 EXIT -

Return To Do Calibration?

YES To Acquire System Dead Weight ValueMENU MENU _. Back Up To Previous DisplaySW1

YES -

Acquire Dead Load - Figure 3-6SW2

NO _

Return To Do Calibration?SW3 EXIT ._


YES to Perform Deacload Type CalibrationMENU MENU - Back Up To Previous DisplaySW1

YES _

Perform Deadload Callbmtlon - Figure 3-7SW2 NO -

Return To Do Calibration?SW3 EXIT _


C)L

-. Cl)

-4-;w 0 (D =r

n-D o o

hcoL-- ;0CD

=r CCD Q< 02. 0D

MET4U MENU _

Back Up To Previous DisplaySWf STEP _

Step Forward To Comer AdjustMENU

am

am

aura

SW2 MODIFY_ Change Calibration Type Selection0

SW3 EXIT _

Return To Modify Scale Setup?

0MEW sm

0MEW

0MEW

USE MVN CALBRATION?STEP MODIFY EXIT

CORKER ADJUST - ONSTEP MODIFY EXIT

sm

LOAD CELLS - #STEP MODIFY EXIT

DISPLAY UNITS - LBSTEP MODIFY EXIT

MBA) em swz aura

DECIMAL PT - 000000STEP MODIFY EXIT

CAPACITY - 000000STEP MODIFY E)QT

COUNT BY 1 LBSTEP MODIFY EXIT

ZERO BAND - 2%STEP MODIFY EXIT

SW2

Modify Scale Set Up

F7 I

Select Calibration Type, mVN or Deadoad

Enable Or Disable Corner Adjust Feature(MENU MET1U -

Back Up To Previous DisplaySWI STEP _

Stop Forward To # Of Load CellSW2 MODIFY_ Enable Or Disable (OntOff) Comer AdjustSW3 EXIT _

Return To Modify Scale Seth?

Select Total Nurnber of System Load Cells 1-4MENU MENU _

Balk Up To Previous DisplaySWI STEP _

Step Forward To Display UnitsSW2 MODIFY_ Change Nurnber Of Load CobSW3 EXIT _

Return To Modify Scale Setup?AM

MLSTBartAt Calf I!

Choose Units Display Of LB, Ka TN, PVUMENU METIU _

Back Up To Previous DisplaySW1 STEP _

Step Forward To Decimal PointSW2 MODIFY_ Change Display UnitsSW3 EXIT _

Return Modify Scale Setup?

Select Decimal Point LocationNEW MEM _ Back Up To Previous DisplaySW1 STEP _

Step Forward To CapacitySW2 MODIFY- Add Decimal Point Or Change LocationSW3 EXIT .


Enter Or After System Capacity ValueMENU MEW _

Back Up To Previous DisplaySW1 STEP ..

Step Forward To Count By #SW2 MODIFY_ Enter/Alter System Capacity ValueSW3 EXIT ..


Choose Scale Graduations Of 1, .2, .5, 1.0, 20, 50, 10.0MENU MENU _

Back Up To Previous DisplaySWI STEP ..

Step Forward To Zero Bandsws

SW2 MODIFY_ Select New Count By ValueSW3 EXIT _


Select Zero Band Of 296, 2096, 10096, OFFMENU MENU _

Back Up To Previous DisplayM STEP _

Return To Modify Scale Setup?SW2 MODIFY_ Select New Zero Band PercentageSW3 EXIT _


Figure 3-3. System ParameterEntry Flow Diagram

Page 3-3

3.3 DIGITAL CALIBRATION

3.3.1 Load Cell Calibration DataIndividual channels and embedded mVM-calibration -curves make it possible to calibrate a DXp-40 by sim-ply entering mVN equivalent force or weight valuesfrom a load cell calibration sheet (Figure 3-4) . A calsheet presents the load cell mVN output reading foreither 3 or 10 known weight values . The highestweight value recorded should match the rated capac-ity of the load cell . Note that there is also a 0 or noload mVN output recorded . Each load cell must haveits own cal sheet (match serial number on sheet toserial number on cell) in order to perform mVN calibration .

If cal sheets are not available, use deadloadtype calibration .

3.3.2 Entering mVN Calibration PointsFollowing Figure 3-5 instructions, select a load celland enter the zero balance (no load) mVN value . Af-ter zero balance is established, enter the load pointpound and load point mVN value for each test pointon the calibration certificate. Repeat this procedurefor each load cell before advancing to `Acquire Dead-load?' (next paragraph) . Note that load cells arenumbered according to their channel connection posi-tion (Figure 2-2).

3.3.3 Acquire DeadloadAfter all mVN load points are entered, a scale zeroreference must be acquired. Deadload zero deter-mines the weight or signal output at which thescale/system is in no load condition . Addition of anyingredient weight will be referenced from this point toproduce accurate live weight readings . Following Fig-ure 3-6 instructions, acquire the deadload value byeither entering a known weight value for all scale/sys-tem components (manual) or letting the DXp-40 readand store the no load signal (live) . When all cal sheetspan points are entered and deadload acquired, mVNcalibration is complete .

Calibration Chart

Date Of Calibration

314194

Temperature :

71 F

.

Calibrated By:

M. Houton

Humidity :

49

Page 3-5

Output HysteresisError Error% FS

%FS

.000%-.010%-.015%-.020%-.023%-.022%-.017%-.015%-.006%-.007%

-.009% .013%.000% .000%

Figure 3-4. Typical Load Cell Calibration Sheet6000C.XLS

AppliedLoad[lb]

OutputAveragemVN

IdealOutputmvN

OutputErrormvN

0 0.0000 0.0000 0.00001,000 0.2998 0.3001 -0.00032,000 0.5998 0.6002 -0.00043,000 0.8998 0.9004 -0.00064,000 1 .1998 12005 -0.00075,000 1 .4999 1 .5006 -0.00076,000 1 .8002 1 .8007 -0.00057,000 2.1004 2.1008 -0.00048,000 2.4008 2.4010 -0.00029,000 2.7009 2.7011 -0.000210,000 3.0012 3.0012 0.0000

5,000 1 .5003 1 .5006 -0.00030 0.0000 0.0000 0.0000

AppliedLoadIbf

ResponseRun 1 ,mvN

ResponseRun 2mvN

ResponseRun 3mvN

0 0.0000 0.0000 0.00001,000 0.2997 0.2999 0.29992,000 0.5997 0.5999 0.59983,000 0.8997 0.8998 0.89984,000 1 .1998 1 .1998 1 .19985,000 1 .5001 1 .4998 1 .49996,000 1 .8002 1 .8002 1 .80027,000 2.1004 2.1004 2.10048,000 2.4007 2.4008 2.40089,000 2.7009 2.7009 2.700810,000 3.0012 3.0012 3.0012

5,000 1 .5004 1 .5003 1.50030 0.0000 0.0000 0.0000

Customer: . . P.O : F046999M0715

Capacity 10;000 Ib - Type C3P1 Serial No. 40243

Mode Compression Bridge A Test Report'No . C94-6000

Indicator NA. Serial No. NA.

MENU MENU _ Back Lip Tb Previous Display' SWI

YES _

Perform MVN CA)bratlon On AN CellsMEW

®

swz

oft

SW2 NO _

Step To Acquire Two Weight?SW3 EXIT _

Return To Do Calitxation?

ENTER CELL # D---------------YES NEXT#MEW SWI am

0

ENTER MVN CAL DATA?YES NO EXIT.

O

LOAD PONTS = #STEP MODIFY CELL#

ENTER ZERO BALANCE?YES NO CELL#am am

BALANCE +OA000O MVNSTEP MODFY CELL#

SWt an

ENTER LOAD POINTS?YES NO CELLOsm am M

MENU MENU - Back Up To Previous DisplaySWI

NEXT _ Step Forward To Load Point MVIV Entry®

am

sIM

SW2 MODIFY_ Enter Alter Weight ValueSW3 CELL# _ Return To Enter Cell # Data?

PT 1 MVN = 1.00000NEXT MODIFY CELL#

swi swz 9M

O

on

Digital Calibration

YES To Perform Digital Calibration

Enter/Alter Number Of Load Points For Selected CellMENU MENU _ Back Up To Previous DisplaySWI STEP _ Step Forward To Enter Zero BalanceSW2 MODIFY- Change Number Of Load PointsSW3 CELL# - Return To Enter Cell # Data?

YES To Enter/After Cal Zero Balance ValueNEW MENU - Back Up To Previous DisplaySW1

YES ..

Enter Zero Balance From Cal Cal SheetSW2 NO _

Step Forward To Enter Load Points?SW3 CELL# . .. Return To Enter Col # Data?

Modify Displayed Value To Match Cal Sheet ValueMEMJ MENU _ Back Up To Previous DisplaySWI

STEP _ Step Forward To Load PointsSW2 MODIFY_ Enter/After Zero Balance Value (from oal sheet)SW3 CELLO - Return To Enter Cell # Data?

YES To Enter Load Point Values From Cell Cal SheetMENU MENU _ Back Up To Previous DisplaySWI

YES _

Enter Load Points From Cal SheetSW2 NO -

Return To Enter Cell # Data?SW3 CELL# w Return To Enter Col # Data?

Enter/Alter Load Point Weight Value

Enter/Alter Load Point rnV/V Value From Cal Sheet

MEMJ MENU - Back Up To Previous DisplaySW1

NEXT - Step To Next Load PointSW2 MODIFY- Enter Cal Sheet mV/V ValueSW3 CELL# .» Return To Enter Cel # Data?

- Switch Pressed

Figure 3-5. Millivolt Per Volt Calibration GuidePage 3-6

ATA? YES To Enter Cal Data For Cell # (1-4)

EXIT MENU MENU - Back Lip To Previous DisplaySWI YES _ Enter Selected Cal's mVN Data

SW3 SW2 NEXT# -To Increment Cell #?0 SW3 EXIT - Return To Do Calibration?

Acquire Deadload* (Establish Zero Weight Reference)

ACQUIRE DEADLOAD?

LIVE OR MANUAL DLOAD?LIVE MANUAL EXIT MENU _ Back Up To Previous Display

SW

UVE _

Advance To Is The Scale Empty?Mw

swt

an

sws

SM MAIWAL.Enter/After Deadoad Weight ValueSW3 EXIT _

Return To Acquire Deadoad?

.___ . .__ .____ .___ .___ .___ ._:

YES To Acquire System Dead Weight Value

Choose Live Or Manual Tare

" Digital Type Callbration Must Be Performed Before Attempting Tare

Figure 3-6. Acquire Deadoad (Used with mV/V Cal Only)Page 3-7

NEMO

DLOAD = t 1000 LBSTEP MODFY EXITam an "W33O

Enter/Alter Known System Dead Weight ValueMENU MENU _ Badc Up To Previous DisplaySM STEP _ Return To Acquire Deadoad?SM MODIFY_ Enter/After Known Deadoad ValueSM D0T _ Return To Acquire Desdoad?

THESC? YES To Proceed With Tare Acquisition.__ .__ .__._____.

YES NO EXIT MENU MEW - Back Up To Previous DisplaySM YES _ Aa uire Dead Weight Value

MEW0

swf sm SOMA

0 0SW2 NO .. Return To LMe Or Manual Tare?SW3 E)UT _ Return To Acquire Tare Weight?

ACQUIRING DLOAD 15 Pause While DXp-40 Acquires Dead Weight Value

CANCEL Press Canoes To Stop Tare Weight AcquisitiortOtherwise Acquire Counter (15) WE Decrement

s To Zero While Value Is Being DeterminedSM CANCEIr

DLOAD - + X00 LB View And Store System Dead Weight Value

STARE REDO EXIT MENU MENU _ Back Up To Is The Scale Empty?SW1 STORE_ Save Value Then Go To Acquire Tare Weight?

MEW 9" SW2 sws SM REDO _ Perform Tare Acquisition Again0 SW3 EXIT _ Return To Acquire Tare Weight? w/o Save

YES ~ NO EXIT MENU MENU _ Back Up To Previous DisplaySM YES _ Acquire Dead Weight Value (Page...)

swt sing swa SW2 NO _ Return To Do Calibration?0 0 0 SM EXIT _ Return To Do Calibration?

IS MVN CAL DONE? YES To Establish System Dead Weight Value

YES NO EXIT MENU MENU _ Badc Up To Previous DisplaySM YES _ Perform Uve Or Manual Dload

0swt sw2 S SM NO _ Return To Enter MV/V Cal Data?*

SM EXIT _ Return To Acquire Deadoad?

3.4 DEADLOAD TYPE CALIBRATION

Deadload calibration (Figure 3-7) uses known value'true' weights to establish calibration span points .Often, only one true weight, value is needed sincewater or other material can be subsfitufed "incremen-tally for that value.

3.4.1 Perform Corner Test (Sensitivity Adjust)

NOTE: Corner adjusting requires that dead weightequaling 15% (minimum) of scale capacity be loadedat each comer. Since applying/shifting this much deadweight is not practical for most tank based weigh sys-tems, comer adjustment is usually performed only onplatform scales .

NOTE: Corner testing is not required on systems us-ing transducers with matched outputs or systemswhere the load distribution is not likely to change .

With multiple simultaneous A/D conversion technologyit is possible to 'balance' or corner adjust the systemtransducers . Comer adjustment ensures accurateweight readings even when the scale is loaded offcenter . Choose YES if comer adjustment is desired .Systems that do not experience load distributionchanges

ically do not require comer adjustment .

Comer testing optimizes scale performance by learn-ing and compensating for the actual relationshipbetween each transducer's output based upon varyingload distribution . Perform corner testing by placing aknown value weight on the scale/system directlyabove or as close as possible to each transducer asinstructed in Figure 3-7 . Position the weight abovetransducer #1 (channel 1) and acquire . Repeat theprocess for each subsequent transducer. After eachtransducer has 'felt' the weight, the DXp-40 will storethe reaction pattern . This pattern becomes a refer-ence for balancing live weight readings. Comertesting is ideal for systems/scales where ingredientsmay shift or loads move.

3.4.2 Acquire Zero

Acquire zero is the first step in deadload calibrating aweigh system. Acquire zero removes the weightvalue of system equipment (tank, platform, mixers,motors, etc .) and establishes a zero reference point.All live weight transactions will be referenced to thispoint. Remove any unessential equipment from thescale/system and follow instructions presented in Fig-ure 3-7 (second page) .

3.4.3 Span Point Entry

Once zero is established a span point (or points) mustbe entered to complete calibration (Figure 3-7 secondpage). The simplest form of deadload calibration con-sists of acquiring zero and entering one span point,preferably the full scale capacity value . To accommo-date more sophisticated systems, the DXp-40provides up to 10 span point entries . Weigh systemscan be fully linearized, or tuned, by entering knownlive weight span points between zero and capacity.Enter span points from the lowest to the highestweight value ; do not attempt to enter a point valuelower than the previous entry. When deadloading tofull capacity is impractical, the DXp-40 accurately in-terpolates all weight values between the last spanpoint and capacity .

IfBnabled-

MENLI

------------------ -

Deadload Type Calibration Flow Diagram

DO DEADLOAD CAL?YES NO EXIT

IS CAL SETUP DONE?YES NO EXITsWt

htM0

NEW MENU .. Back Up To Previous DisplaySW1

YES _

Proceed To Comer Adjust Or Acquire ZerosW2

sure

SW2 NO - Return To Modify Scale Setup?-SW3 EXIT -

Return To Do Deadoad Cal?

DO CORNER ADJUST?YES NO EXIT MEW MENU - Back Up To Previous Display

SW1

YES-

Do Corner AdjustmentMN)

am

SW2

am

SW2 NO _

Advance To Aquire Zero?SW3 EXIT _


IS THE SCALE EMPTY?YES NO EXIT MEW MENU - Back Up To Previous Display

SWI

YES-

Acquire A No Load Referenceawl

swz

sm

SW2 NO -

Return To Previous Dlasplay0

SW3 EXIT ..


ACQUIRING DATA

15

Acquiring Reference Data (256 Conversions). . . . . . . . . . . . . .

CANCAL

Press Cancel To Haft Acquisition, BeeAcquire Counter (15) decrements To Zero

SW

During AcquisitionSW3 CANCEL

APPLY LOAD TO CELL #

MENU MENU - Back Lip To Previous DisplaySW't

YES -

Perform Deadload CalbrationSW2 NO -

Return To Do Calbration?

.SW3 EXIT _

Return To Do Cefibratlon?

MEW

YES to Perform Deadoad Type Calibration

YES To Continue With Deadoad Type Calibration

YES To Corner Adjust; NO To No Load Reference

YES To Acquire A No Load Reference

Apply Known Value Load To Each Cell & Save

NOTE: Point values should he within* Cal Setup Must Be Performed Before Attempting Deadload Calibration

20% of each other. Shim loadcolt to oerreok n necessary.

" awlf Pressed

Figure 3-7. Deadload Calibration Entry GuidePage 3-9

DONE EXITawl am

0--------

MEWSW1

SW3

MENU _DONE _

EXIT -

Back Up To Previous DlaplayEnter Value And Advance To Next Cal

Return To Previous Display

VIEW CELL. BALANCE? YES To View Completed Cell Balance

YES NO EXIT MEW MENU _ Back Up To Balance The Cells? DisplaySW1 YES _ View The Results Of Cell Balancingam awe Sws SW2 NO - Advance To Acquire Zero? (page )0 SW3 EXIT _ Return To Balance The Cob?

1+25.00% 4+ 2500P%o Display Of Cep Balance in % Of Load2+25.00% 3+ 25.001/6 MEW

SWf Menu, SW1 - SW3 Ali Revert Toam SW2 sm0 O

SW2 Previous Display

0.049 LB

ZEROACQUIRE ACCEPT EXIT

MEW am

MENU MENU _ Back Up To Acquire Zero?Suit

YES _

Step To Are You Sure? PromptMM

s"

sm

sm

SW2 NO _

Advance To, Enter/Adjust Spans?I

SM EXIT _


Deadload Type Calibration Flow Diagram (cont.)

ACQUIRE ZERO?YS NO EXTT ,

CLEAR ALL SPANS?YES NO EXIT

0SW2 9"

ARE YOU SURE?YES NO EXIT MM MM - Badc Up To Previous Display

Suit

YES _

Clear AN Existing Span Pointssws

SW2 NO _

Retum To pear All Spans?SM EXR _ Return To Do Deadoad Cal?

ENTER/ADJUST SPANS?YES NO EXIT

SPAN 01 = +0000529... .___ . . . ._ . . 11AODFY NEXT EXITawl svn2 sw3

YES; Must Acquire A No Load Reference

MB-W MENU _ Back To Balance The Cells?SW1

YES_

Acquire Zero Reference (Tare Out Dead Weight)SW2 NO -

Return To Previous DisplaySW3 EXIT _


Live Display Of Dead Welght (Tare) ValueMENU NENU _

Back Up To Previous DisplaySM ACOURE. To Acquire And Display Zero ReferenceSM ACCEPT. After Acquire, Advance To Clear AN Spans?SM EXIT _


Do You Want To Gear Span Points & Re-enter

YES To Clear All Existing Span Points

YES To Enter Or Alter Span Points (1 - 10)MM MENU - Back Up To Clear A1 Spans?SW1

YES_

Step To Span 1 AdlustmentSW2 NO -

Return To Do Deadoad Cal?SW3 EXIT _


Apply Deadload Weight, View, Acquire Span Point

MENU MENU - Badc Up To Previous DlaplaySW1

MODIFY- Acquire Span Value, Advance To Shift, Inc, DecSW2 NEXT _ Select Next Span PointSM EXIT _ Return To Enter Adjust Spans?

" SWAM Messed

Figure 3-7 (cont.) Deadload Calibration Entry GuidePage 3-10

a

aSPAN 01 -SF1FT 140

40000500DEC

AdjustMEM

Span Point To Deadoad Value, Advance To Enter

NEW - Advance To Shift, Enter. Exit Displayw SM SHIFT _ Move Flashing Cursor To Wt(s) To Be Altered

NEW SM SW2 NO _ Increment Value Of Selected Digitw 0 0 0 SW3 DEC - Decrement Value Of Selected Digit0ug

SPAN 01 = "0000500 Store Corrected Span Point Value, Advance To Next Pointu SHIFT ENTER EXIT MENU MEMJ - Return To Previous DisplaycG SW1 SHFT - Return To Shift, he, Dec

LEW0

SM Sw2 Swa0 SW2 ENTER _Store Displayed Value For Current Span Point

SW3 EXIT -- Go To Span # Without Storing Value

4.1 GENERAL

DXp-40 transmitters power up in the gross weightweighing mode. If no system errors are detected, theinternal LCD display will show the gross weight valueas depicted in Figure 4-1 (the unshaded portion) .Note: For initial system power up units are factorypre-calibrated with default values . Calibration (SEC-TION III), however, should be performed beforeattempting system operation.

Figure 4-2 presents the display panel switch functionsfor the operating mode . Switch 2 toggles the operat-ing mode from gross to net or net to gross. Switch 3

" If remote G/N (110 option) is enabled, internal G/Nfunction is not available - see paragraph 6.2 .8

SECTION IVOperation

performs push to zero (gross mode) or tare (netmode). Use switch 1 to view individual load cell data .When the DXp-40 is connected to a host terminal,computer, or an LCp-40 network control device, gross,net, zero, and tare functions can be performed re-motely .

4.2 GROSS WEIGHT WEIGHING

In the gross mode, all of the live weight of the systemis transmitted. Live weight does not include the deadweight of a vessel or other mechanical equipment thatis factored out during calibration .

Figure 4-1. DXp4O Main Menu -Power Up In Gross Mode

Page 41


"100000 LB GROSSND CVN* ZERO

LIVE WBC*IT DISPLAY, GROSS MODEKM MEW_ Advance To DW File Setup Mess ErrorSWI PD _ Display Indvldjal Load Cels

MM am sw2 am0

SW2 WT _ Switch To Nat MoilsSW3 ZERO _ Pwh To Zwo

DIGITAL FLTER SETLP YES to enter/after Dgltal FItef Parameters

YES NO EXIT MM MM - Advance To 'Cal DfagnosWeSWI YES _ Enter Or After Filter Parameters

MM 90 Sm SW2 NO - Go To Cal DlsynosUnSW3 EXfT _ Retm To We Operation

CELL DIAGNOSTICS CHECK:Load SIR, Zero Shit,Df Note, Raw Data

YES NO EXIT MEW MEW_ Advance To to Cabrafbn'SW1 YES _ ft fm Dlagrasflc EvaluWlon

MM am MR Sara SM NO - Go To Do CaffxadMWS EXIT _ Rohm To LNe operation

DO CALBRATION? YES to Perform System Calbration

YES NO EXIT MEW MM - Rehsn To Live OperaWnSM YES _ Erdar Or Aftx Csiebra0on Setttgs

MM am am SIM SW2 NO _ Return To Live OperaWnSM EXR_ Rob" To Live OperaUon

ANALOG ouThuT YES To EnterlAlter Analog Output Parameters .

YES NO EXIT NE3AJ MEW- Advaroe To SDVWtsYSWI YES _ Enter/Alter Arsdog Output Parameters

i o 0 0 SW2 NO - Go To Seypoiits?SW3 EXIT _ Retun To Live operation

SETPOWTS ? YES To CoMig" Relay Output Furwboris

YES NO EXIT KM MEW _ Advance To MODBW htarface?SWI YES _ Cord" Set Point Relay outputs

mm11111111

ant 9w2 swaM O

SM NO _ Go To OBIS Martece?SM DQr_ Return To Lhe operation

MOMIJS NTERFACE? YES To Configure MODBUS Commdeation ParametersYES NO EXIT MEW MEW_ Advance To bXP40 Version hfamatbn'

swt YES _ Conflgiae MODSmInwtaoeMW am svrz awe SW2 NO - Go To UCP40 Version Ydorma0on'

SM EXIT _ Retun To Live Opwatlon

BLH DXP40 VER t0 View Software Verslon# and Option Status

OPTIONS -1-2-1 M9aJ MENU - Return To Live Operation

MWIIIIIIIII

u

DXp-40 Operating Mode Switch Selections

+100000 LB GROSSND G/N ZFFR(

1+ 2&000%

4+ 25.000%2+ 2&000°A

3+ 25A00°/6MAP Sm m svo

Live Weight Display, Gross Mode

MENU - MENU - Choose Main Menu - Rgtre 4-1

Live Weft Display, Net Mode

MENU MBU_ Choose Man Menu - Figxe 4-1SWI

IND -

Display individual Load CellsSW2

GROSS ...Switch To Gross ModeSW3

TARE .» Tare Net Weight (MOTION If In motion)

Look At indvklual Cell Data

MENU

M9W.. Choose Main Menu - Rgtre 4-1SWI

IND .»

Display Wdvidijal Load Cells

Select Load Cell Display UNts

Individual Call Display In Weight UnitsMEMSmSW2SW3

kdvidual 091 Display In MiBvolts

MEW

-

UNts to displaySm - UnitsSW2 - E)dtSm

-

Show %Of Ldo

N®VU

MENU - Go Back To Previous DisplaySWi

LB _

Display Weight UNtsSW2

MV_

Display Mwolt SignalSW3

%LOAD .-Display % Of Load Upon Cell

indviduai Cell Display In % Of Load

- switch Prees.d

UNts To DisplayE)dtM®voltsShow % Of Load

Figure 42. Switch Functions In The Operating Mode

Page 42

MENU _ Units To DisplaySWf - unitsSW2 _ NuivoltsSW3 - E)dt

+100000 LB GROSSND G/N TARE

Menu am svwt0 0

+100000 LB GROSSIND G/N SRO

MEW sw2 SvcC7 D 0

UNITS TO DISPLAYLB MV °i6LOAD

LIM swn sw2 SvcO

1.000 4+10002+ 1000 3+ 1D0

Neau sun Sw2 swaD

1+ 1&000 4+ 15.0002+ 15.000 3+ 15.000

MEW sm sm77 O ®

SW1 III ... Display I Loci CobSW2 NET _ Switch To Net ModeSW3 ZERO _ Push To Zero (no display if out of zero

band range; MOTION It in motion)

4.3 ZERO OPERATION

A new zero can be acquired to compensate forchanges in the dead load of the system due to heelbuild-up etc . Acquiring a new zero reference valuedoes not affect the slope of the calibration . The"zerofunction in the DXp-40 can be configured for OFF,2%, 20%, or 100% of system capacity (see Setup Pa-rameters in SECTION VI Calibration) . Zero may beacquired only if the system is not in motion and thezero band limit has not been exceeded (when ZEROis visible on the display).

4.4 NET WEIGHT WEIGHING

Net weight weighing is used when the operator wantsto reset zero to compensate for the addition of liveweight, or a container, before adding a specificamount of material . Tare is used to establish a zeroreference in net mode .

4.5 TARE OPERATION

With the DXp-40 in net weighing mode, the tare op-eration resets the output to zero. Taring allows theoperator to achieve a new zero reference before addi-tion of each ingredient so that errors do not becomecumulative .

MENU sm

4.7 ERROR DETECTION ANDCORRECTION

Error Condition Encountered

"moooo La doss ~IM cn~ ZERO

error

CELL #STER

DIAL

EXITSvcO

error

4.6 VIEW INDIVIDUAL CELL DATA

Pressing switch 1 'IND' (Figure 4-2) allows the opera-tor to view individual load cell parameters in weightunits, millivolts, or percent of total load . Note that liveweight processing (including serial data transactions)continues during individual cell displays.

Should an error condition occur during system opera-tion, a flashing capital 'E' will appear next to theweighttstatus information on the display (Figure 4-3).If the system is overloaded, (total or individual cell ca-pacity exceeded) the word 'OVER' also will appearflashing beneath the flashing 'E' . Errors other thanoverload fall into 4 categories ; load shift, zero shift,cell drift, and cell noise errors . To evaluate and cor-rect system errors, enter the diagnostic mode asshown in Figure 4-3 and proceed to SECTION V (CellDiagnostics) .

ERROR DESIGNATED BY FLASHING 'E'MENU MENU - Press MENU Until Display Reads

View Errors?

Error Type Defined For Failing Cel(s)MENU MENU _ Return To Previous DisplaySW1

STEM _. Step To The Next Cell ErrorSW2 DIAL _

Go To Diagnostics, Evaluate ErrorSW3 EXIT ~.


= Overload CellLoad Shift CellZero Shift Cell

= Cel Drift Cell #Cell Noise Cog #

Figure 4-3. Error Detection & Correction Switch SelectionsPage 4-3

Km swiD

VIEW

sw2D

ERRORS?

sure

YES To View The First Error

YES NO ovr MENU MENU _ Return To Previous DisplaySW1 YES _ View First Error Ocarance

LEM SW1 SW2 SWd SW2 NO _ Return To Previous Display0 I SW3 EXIT .» Return to Lire Operation

5.1 GENERAL

Digital filtering (including motion) constitutes the firstset of parameter entries in the main menu (Figure 5-1,unshaded) . Digital filtering combines moving averag-ing (filter) with response and noise bands to eliminatevibration and agitation noise from dynamic processweighing systems. Filtering removes unwanted, me-chanically induced fluctuations from the weight signalwhile maintaining rapid response to genuine liveweight changes.

SECTION VDynamic Digital Filters

5.2 FILTER PARAMETERS

Each filter component has adjustable parameters (Fig-ure 5-2) so that every weigh system can be `tuned' toits own unique environment.

NOTE: Using diagnostic software, it is recommendedthat the statistically calculated noise characteristic pa-rameters such as standard deviation, etc., be used asa basis for initial filter set-up .

" swm+ vn,..d

Figure 5-1 . Main Menu Digital Filter Selection

Page 5-1


"100000 LB GROSS LIVE WEIGHT DISPLAY, GROSS MODEIND G/td ZERO MENU MENU .. Advance To Digital Filter Setup Union Error

SWI IND _ Deploy Individual Load CobNEW swi sm sm SW2 NET _ Switch To Net Mode

SW3 ZERO ._ Push To Zero

MTAL R.TER SETUP YES to enter/after Dgftal Flterlng ParametersYES NO EXIT MENU MENU - Advance To 'Cell DlagasW

SWI YES _ Enter Or Alter Flier ParametersM9dJ sm am SW2 NO _ Go To Col Magws6ca

SW3 EXIT - Return To Uve Operation

CELL DIAGNOSTICS CHECK: Load Shift, Zero Shift, Drift, Noise, Raw DataYES NO EXIT MENU MENU . . Advance To 'Do Calibration!

SWI YES _ Perform Dlagiostic EvaluationMsau SW2 NO _ Go To Do Calration

SW3 EXIT .. Return To Live Operation

DO CALBRATION? YES to Perform System Calibration

YES NO EXIT MENU MENU - Return To Live OperationSWf YES .. Enter Or After Calabratlon Setups

MEW swi swz am SW2 NO _ Return To Live OperationSW3 EXIT _ Return To Live Operation

ANALOG OUTPUT SETUP? YES To Enter/Alter Analog Output ParametersYES NO BUT MENU MENU .. Advance To 'Selpoints7

SWI YES _ Enter/Alter Analog Output ParametersMM sm 902 am SW2 NO _ Go To Seypoints?

0 0 SW3 EXIT _ Return To Live Operation

SETPONTS ? YES To Confgre Relay Output FunctionsYES NO EXIT MENU K*341U _ Advance To MODBUS Interface?

SWf YES - Configure Set Point Relay OutputsMM SIAM SW2 Sm SW2 NO _ Go To MODBUS Interface?

SW3 EXIT - Return To Live Operatlon

MODBUS NTERFACE? YES To Configure MODBUS C,omrriiaiioation ParametersYES NO EXIT MENU MENU - Advance To 'DXP40 Version Mormalion'

SWt YES _ Conttgure MODBUS InterfaceMENUlli®

SW2 NO - Go To 'DXP40 Version Information'SW3 EXIT _ Return To Live Operation

BLH DXP40 VER 10 View Software Version# and Option StatusOPTIONS -1-2-1 MENU MENU _ Return To Live Operation

M9Wll l

FLIER sSTEP MODIFY EXIT

FRTER - 50 MSECSTEP MODIFY EXIT

MEW swt S*Z sWS0

BAND FLT - 4 SECSSTEP MODIFY EXIT

Optional

MEW W so sm

Optional

Mau

NOISE BAND - 2STEP MODIFY EXIT

SAM

RESPONSE - 4STEP MODIFY EXIT

Digital Filtering Setup

MOTION BAIL - 3STEP MODIFY EXIT

MOTION TMER -1 SECSTEP MODIFY EXIT

MEW SwI am ms

View Or Modify RtersLIENU LEV _ Return To Digital Filter SetupSM

STEP - Step To Next FilterS%V2 MODFY Mof Selected Filter ParametersSM ENT _

Rturn To Digital Filter Setup

View/Modify Filter Length Selection (rnaec)

Choose: 50,10Q 200, 400, 800,16004 3200, $400

MENU MENU _ Back Up To Provbw DisplaySM

STEP - Advance To Band Filter SebctbnSW2 MODFY Modify Filter Time LengthSM EXIT _

Return To Filter + Selection

View/Modify Band Averaging Selection

Choose OA 1, 2, 4, 8, 16, 32, Or 64 Seconds

MR&1 MEW _ Back Up Tb Pmbue DisplaySM

STEP _ Advance To Noise Band SetupSW2 MODIFY game Bend Averepitq SelectionSW3 BUT _

Ream To Filter # Selection?

View/Modify Noise Band Selection (Counts)

Choose: 0 - 250 Display Counts

NENU _ Back Up Tb Prevbw DisplaySM STEP _ Advance To Response SetupSW2 MODIFY Select New Noise Bend Count RangeSM EXIT - Return To Rter # Selection

View/Modify Response Band Selection (counts)

Choose: 0 - 250 Display Counts

MENU MENU _ Back Up Tb Previous DisplaySM

STEP _ Advance To Motion Band SetupSW2 MODFY Modify Response Thte LengthSM EXIT - Pdm To Filter # Selection

View/Modify Notion Detection Band Selection

Choose: OFF, 1. 2, 3, a 10, 20, Or 50 DL3*y Counts

MENU MENU _ Back Up To fvbw DisplaySIM

STEP _ Advance To Nobe Band SetupSM MODFY Mof Filter Time LengthSW3 OUT _ Ream To Filter # Selection

View/Modify Motion Tine Selection (sec)Choose: Time %VkWove Of .5, 1, 2, 3 Seconds

MM MEW .. Back Up To Previous DisplaySWt

STEP _ Return To Digital Filter Setup?5m MODFY_ Moddy Motion Detection Time PeriodSW3 EXIT -

Return To Filter # Selection" ewft Room

Figure 5-2 . Digital Filter and Motion SetupPage 5-2

5.3 DYNAMIC FILTER

Dynamic Digital Filter software is an advanced seriesof filtering algorithms for attenuating random weighsignal noise . Using the pre-filtered . signal. , . from thestandard filter, the Dynamic Filter applies a two stepapproach (Noise Band and Response Band) to adap-tively reduce the noise components of the weighsignal without adversely affecting system dynamics(Figure 5-3).The resulting real time weigh signal pro-vides stable weight information for high resolutionindication and precise control over a broad spectrumof mechanical and electrical disturbances.

5.3.1 Band FilterBand Filter is an exponential software filter which isapplied only to signal fluctuations which fall within theNoise and Response band limits . The Band Filter isfully applied to signal fluctuations which fall within theNoise Band. For signal changes which fall outside theNoise Band but within the Response Band, proprietarystatistical analysis algorithms are applied to the BandFilter resulting in progressively lower dampening pro-portional to time within the Response Band anddirection of signal change. For signal changes whichfall outside both Noise and Response bands, theBand Filter is canceled . This allows heavy dampeningof system noise while maintaining quick response tochanges in weight signals . The Band Filter length' isselectable at 0.5, 1, 2, 4, 8, 16, 32, and 64 seconds .The equivalent frequency attenuation is as follows :

*Filter length is the time for an instant change to befully reflected at the output.

5.3.2 Noise BandNoise band is the + and - limit of the ampli-tude fluctuations in weigh signal due toexternal electrical or mechanical influences .For changes in signal amplitude equal to orless than the Noise Band limit, the Band Filteris fully applied for maximum dampening . Inmany applications, the standard deviation, de-termined by the Noise Test (paragraph 6.2.4),can be used to establish the value of theNoise Bar.d . Under the Noise Test menu, viewthe standard deviation without any filtering ap-plied . For 68% attenuation (1 sigma filter),select the largest value and round it up to anenterable value for the Noise Band.

IL-,Band

(

Page 5-3

For 99% attenuation (3 sigma filter), multiply the larg-est standard deviation value by 3 and round it up toan enterable value for the Noise Band. Noise Bandamplitude selections are from 0 (off) to 250 displaycounts (display resolution) .

5.3.3 Response BandResponse band is t;ie + and - limit in terms of theamplitude of changes in weight signal outside theNoise Band limit . Response allows quick response tosmall changes in weigh signals outside the NoiseBand but within the Response Band . For changes insignal amplitude equal to or less than the ResponseBand limit, the Band Filter is applied with progres-sively lower dampening effect to allow responsivechanges in weigh signal . Response Band amplitudeselections are from 0 (off) to 250 display counts (dis-play resolution) . It is recommended that the NoiseBand setting be multiplied by 1, 2, 3, or 4 to get theResponse Band setting . With the vessel in a steadystate, set the Noise Band according to the standarddeviation value . With the Response Band set to zeroany spikes that fall outside the Noise Band will causethe displayed or transmitted weight to jitter. Increasethe Response Band setting until the jitter disappears.

The two bands work together to separate systemnoise from true change in weigh signal achievinghigher accuracy and more dependable data for controlpurposes .

5.3.4 Default ParametersAll DXp-40 transmitters (even those without the dy-namic filter) are shipped with these default para-meters : band filter = 32 seconds, noise band = 1, andresponse band = 4.

Figure 5-3 . Graphical Opera ion Example

RapormBend

(coiats)

RespommBand

(cards)

Filter lengthin seconds

0.5

Frequency attenuationin hertz

101 52 2.54 1 .258 0.6316 0.3132 0.1664 0.08

5.4 MOTION DETECTION (Standard)

Motion detection parameters are -entered along -withfiltering parameters (Figure 5-2). Motion simply deter-mines when the system is active and when it is not.Tare and push to zero functions should not (and can-not if motion is selected) be implemented when thesystem is in motion . Motion can be configured forbandwidth of 1, 2, 3, 5, 10, 20, or 50 counts, or turnedOFF. Once a band is selected, a time length (win-dow) also must be established for the band. Motionmust occur for the designated time interval before thesystem acknowledges an 'in motion' condition.

The motion timer is the time the system remains in an"in motion" condition after returning to a "not in mo-tion" condition.

5.5 OPTIONAL SECOND FILTER

If the remote input option (paragraph 2.3.6) is in-stalled, two sets of filtering parameters may beentered . Dual filters provide optimal control for sys-tems with changing process dynamics . With thedisplay reading 'DIGITAL FILTER SETUP?', pressYES for filter 1, and press YES again for filter 2. En-ter parameters for both filters as previously described.Filter selection is accomplished using remote digital in-put number 4. When input number 4 (DIG 4) is low(grounded), filter 2 is selected; high selects filter 1 .

6.1 GENERAL

The next step in the DXp-40 main menu is diagnosticerror analysis and parameter entry (Figure 6-1) . Theunique quad A/D converter design makes it possibleto diagnose system errors down to the exact load cell .Each load cell is continually checked for open cir-cuit/wiring, zero shifts, drift, and overload . DXp-40diagnostics also detect system malfunctions such asstructure shifts, impact shock loads, and ingredientbuild up problems (heel checks).

® 0 0 0Mau sm am am

Meal

SECTION VIOn-Line Load Cell Diagnostics

Main Menu (Accessed from Operation

"100000 LB DROSSW O/Id ZUi0

(ANALOG OUTPUTYES NO EXIT

SETPOWTS ?YES NO EXIT

MODBUS NTERFACE?YES NO EXIT

BLlI DXP40

VER 10OPTIONS -1-2-1

Figure 6-2 provides an overall flow diagram for all di-agnostic functions . Once an error is detected, thedisplay shows a flashing 'E' while the serial outputtransmits the error code to the host computer . Also, adiscrete relay output (optional) can be configured forerror detection activation . Flow diagrams (Figure 6-3)show how to pinpoint the faulty cell(s) and change er-ror condition parameters, if desired.

Mode)LIVE VVEKW DISPLAY, GROSS MODEMENU MENU _ Advance Tb Digital Filter Setup Unless ErrorSWI

w _

Display t+dvidual toad coils

YES To Enter/Alter Analog Output ParametersMENU MENU _ Advance To %**~SWI

YES _

Enter/Alter Analog Output ParametersSW2 NO _

GoTo Seypoints?SW3 EXIT _

Rat" To Llve Operation

YES To Configure Relay Output FunctionsLieNIJ MENU _ Advance To NIODBUS Interface?SWt

YES _

Configure Set Point Relay OutputsSw2 NO _

Go To MODBll3 (interface?SW3 EXIT _

Return To LIw Operation

YES To Configure MODBUS Co wnunication ParametersW M MIM _ Advance To'DXP10 Version information'SWt YES :

Cosflgtro MOOBUS interfaceSW2 NO _

GoTo 'DXP40 Version hfonnation'SW3 ExlT _

Retun Tb Uve Operation

View Software Version# and Option StatusMENU MM _ PAt rn To Uve Operation

Figure 6-1 . Diagnostic Error Evaluation Main Menu

Page 6-1

®Iam C1

DWAL FLTER SETUPYES NO EXIT

sMNO

YESMM

NET _ switch Tb Not ModeZERO _ Push To Zero

to enter/alter Digital Filtering ParametersMENU _ Advance To 'Cell Dla~

SWt YES _ Enter Or Alter Filter ParametersUM sm am am am NO _ Go To Call Maw"Hos® I~ 0 0 SW3 EXIT _ Rebsn To live Operation

CELL. UAC0lOSTlcs CHECK. Load Shift, Zero Shift, Drift Nolse, Raw Data

YES NO EXIT MENU MENU _ Advance To 'Do Cabratlon'SWI YES _ Perform Diagnostic Evaluation

AGM am am am Sw2 NO _ Go To Do CalliraUonSW3 EXIT _ Reti n To Live Operation

DO CALBRATM YES to Perform System Calibration

YES NO EMU illMJ MENU _ Rebsn To Uw OperationSWt YES _ Enter Or Altar celebration Settings

MEW am we Wo SW2 NO _ Return To Uve OperationSWS EXIT _ Rob" To Uve Operation

cc

0cm

0

d

00J

10 13 C

C 11C

,,&

J

g 10

g C

g 10

bc

110

gC

i1cC

24

24

24

29

24

24

2C

k2c

I 1C

CX

JC

1024

lo i gC10

132C

n ING

Figure 6-2. DXp-40 Diagnostic Routines

Page 6-2

10

10

P93P

C 9C

4 04r

6.2 DIAGNOSTIC TESTS

Four of the five tests, load shift, zero shift, drift (whenactivated), and noise test, are evaluated and updatedevery 256 conversions (12 seconds) . Overload ischecked and updated every conversion (50 mse6) .

Load Cell Diagnostics Main Menu

CELL DIAGNOSTICSYES NO EXIT

LOAD SFFT & DISPLAYYES NO EXIT

ZEROSHIFT & DISPLAY

MEW

SELECT WPUT ENABLESYES NO EXIT

Flow diagrams (Figure 6-3) provided for each testshow how to distinguish the cell/system fault andchange parameters if desired.

CHECK: Load Shift, Zero Shift, Drift, Noise, OverloadMEW MENU - Advance To 'Do Calibration'SW1

YES _

Perform Diagnostic EvaluationSW2 NO -

Go To Do calibrationSW3 EXIT _

Return To Live Operation

YES To Evaluate Load Shift ErrorNEW MENU _ Return To Previous DisplaySW1

YES

Rgure 6-4 - Evaluate Shift Error(s)SW2 NO _

Step To Zero Shift & DisplaySW3 EXIT _

Return To Cog Disgnostics

YES To Evaluate Zero Shift Error

YES To Change Remote Input Enable StatusMENU NEW _ Return To Previous DisplaySWt

YES _

Fgure 6-11 - Enable/Disable Remote InputsSW2 NO _

Go To Cell DiagnosticsSW3 EXIT _

Return To Gel Diagnostics

=-SWt Pressed

Figure 6-3. Diagnostic Error Evaluation Main MenuPage 6-3

YES NO EXIT

DPJ7 TEST & DISPLAY

MENUSW1SW2SW3

YES

MM _ Return To Previous DisplayYES -_ Figure 6-5 Evaluate Zero Shift Errors)NO _ Step To Drift Test & DisplayEXIT _ Return To Cell Diagnostics

To Evaluate Drift Error

YES NO EXIT MENU MEW _ Return To Previous DisplaySWt YES -_ Fire 6-6 Evaluate Drift Error(s)

MM sm a" SW2 NO - . Srep To Noise Test & Display0 SW3 EXIT _ Retum To Gel Diagnostics

NOISE TEST & DISPLAY YES To Evaluate Noise Error

YES NO EXIT MM MENU _ Return To Previous DisplaySWt YES -_ Figure 6-7 Evaluate Noise Errors)

MEW awl SW2 sw3 SW2 NO _ Step To Cel Overload LimitsO !~ SW3 EXn' _ Return To Cel Diagnostics

CELL OVERLOAD LAbATS YES To Check Load Calls) Overload Condition

YES NO EXIT MEW NEW _ Return To Previous DisplaySWt YES -_ Figure 6-6 Evaluate Overload Error(s)

Y6AJ swi We SW3 SW2 NO _ Step To Recall Values0 SW3 EXIT _ Return To Cal Diagnostics

RECALL VALUES? YES To View Zero, Tare, Deadload, Or Cell Balance

YES NO EXIT NEW MENU - Return To Previous DisplaySW1 YES -_ Figure 6-9 Zero, Tare . Deadoad, Balance

MM Son sw2 sws SW2 NO _ Go To Degrade Setup?0 0 SW3 EXrr .. Return To cell Diagnostics

DEGRADE SETUP? YES To Acquire Reference or Modify Cell Enable

YES NO EXIT NEW MENU - Return To Previous DisplaySW1 YES -_ IFIgure 6-10 Perform Degrade Setup

MEW swu sv& SW3 SW2 NO _ Go To Cell Diagnostics0 0 a o SW3 EXIT _ Return To Cell Diagnostics

6.2.1 Load ShiftA load shift error indicates that system equipment orvessel contents have shifted so as to place a dispro-portional amount of weight on a single cell . This testdoes not apply to initial load alterations during installa-tion and calibration . Load shift - , testing 1. detestssignificant load changes in an operational weigh sys-tem . Follow guidelines in Figure 6-4 to determinewhich cell(s) is experiencing the shift error .

WM SIM

VIEW %LOAD REFEFOCE.. . . . . . . .. .YES NO EXIT

O ® (~ OMM SM an

. . ..... . . . . ... . . . . . . . .. . . . . . .. .. . . . . ... . . .mvv

.CdilxwAon

. . . . . . .. .. . . ... . . .. . . . . .Deadload CaL'bratim

1- 25.00%

4- 25.00%. . . . . . . .

2" 25A0�k

3+ 25.0096 I

VEW LOAD SWT

'h 00.50%2- 0020%

swn

DEADLOAD - 200.096LOAD EXIT

sws

SPAN 01- 200.0%LOAD NEXT DQT

SIM an SM0 0 0

VIEW S1Fr LMT. . . . . . . .. . . . YES NO EXIT

0 ® OMEW SM &M an

SIFT LMT - 0.1%STP MOD" EXIT

0 0 l~ oMW a" 910 SM

Evaluate Load Shift Error

Load shifts can be caused by many things, among afew are : heel build up on one side of a tank, supportstructure changes introducing more force from con-nected pipes or process equipment, excessivedeflection of a support leg, or faulty signal from theload cell .

Check the system structure above that cell for evi-dence of weight shift . If physical evidence does notpoint to a structural or content error, see if the cell hasfailed any of the other diagnostic tests .

YES To View Load SHft (% Deviation From Reference)_ Return To Prevbus Dbplay

View tWMdud Cel % Load SMStep Td Vbw % Load RererenosReam To Load SM & DWlay

% Load ShMt

Reium To Pmvbus Dbplay

YES To View % Load ReferenceMENU MeU - Rot= To Prevbua DMPWSW7 YES _

vbw Ca6ftbd Spn Points or WN Zero3W2 NO -

slap To Load SHft LtdtSW3 EXIT _ RWm To Load SWt & Diepby

View Cel Deadbad Reference As % Of LoadMet! Menu - Pen To Prsvbos DkplaySW1 %LOAD- Vbw % of Load Far Each Cal

SW3 EXIT _ Rehm To View % Load Reference

View Cabrated Span Points As % Of LoadMEW MBVU _ Retun To Vbw % Load ReferenceSWt %"J)- vrw % of Load For Each calSW2 MM _ traenrent To Next Spen PdntSO EXIT - Rohm To Vbw % Load Reference

trdvktual Cel Display In % Load SM

ALL SwRehss Reiun To Prevlam Dbpby

YEs To view, Enter. or Alter The shm unitMENU Mt3S1- Rohm To View % Load RefWOMSWt

YES _

Step To Shift LMt -SW2 NO _

Go To Load SM & DbOayW3 EXIT _ Retun To Load Mft & Dkpiey

Modify To After Shat LM* PercentageMENU MW - Rehun To View SHft LMtSM STW .. Rehin To Vbw MM UMs" MODFY_ Modify Cured Wtift LullSW3 EM _ ROtun To Vbw SNKt LMt

Figure 6-4. Load Shift Error Evaluation Instructions

Page 6-4

NO EM LEM NB~ISWi YES _

an am Sw2 NO _SM EXIT _

4" 00.509'0 trdlvldual Cel

3 " 00.30% All Swawe avs

6.2.2 Zero ShiftZero shift testing identifies a load cell(s) that hasshifted from its original calibration zero referencepoint . The diagnostic zero shift limit entry is DIFFER-ENT from the 2%, 20%, 100%, or OFF calibrationZERO band entry. Zero shift- testing ° is applied l toeach load cell, whereas the zero band concerns onlythe total system weight . Follow the flow diagram inFigure 6-5 to view the zero shift value for each celland/or alter the zero shift limit.

ZERO SHFT LUT_ .____ . .___ . YES NO EXITMM SWt SW2 SW9

LMT

3.00 LaMooF r oQr

MEW Sm SUV2 SW3

Evaluate Zero Shift Error

Zero shift test failures typically result in load cells thathave been damaged by overloading or electrical leak-age. Either of these factors can cause a permanentshift in a cell's zero reference. If a cell fails the zeroshift test, check to see if the overload peak has ex-ceeded acceptable tolerance levels. Note that thezero shift test is performed only when the 'zero' func-tion is activated .

YES To View Zero Shift UmitMENU MENU ._ Return To View Zero ShiftSW1

YES _

Vlew Current Zero Shift SelectionSW2 NO _

Step To Zero Shift & DisplaySW3 EXIT ~.

Return To Zero Shift & Display

Modify To Alter Zero Shift UmitNEW MENU _ Return To Zero Shift LimitSW1 STEP - Return To Zero Shift LimitSW2 MODIFY_ Modify Current Shift UrNtSW3 EXIT _

Retum To Zero Shift L'urnit

s1 Premod

Figure 6-5. Zero Shift Error Evaluation Instructions

Page 6-5

VIEW ZHRO SFFT YES To Vlew Zero Shift (Deviation From Reference)

YES NO EXIT MENU MENU - Return To Previous DisplaySW1 YES M View hdvidual Cell Zero Shifts

MEW SWf am SW3 SW2 NO _ Step To Zero Shift Whit0 I SW3 EXIT _ Return To Zero Shift & Display

000 4+0.00 Individual Cell Display In Engineering Units

2+0.00 3+0.00 ALL Switches Return To Previous Display

swr sw20 0 0

6.2.3 Drift TestThe drift test detects a load cell output that is chang-ing beyond acceptable tolerance levels . When thesystem stabilizes, after a period of weight activity, theprocessor waits one minute and then stores a refer-ence value for each cell . : , - Successive -values,averaged every 256 conversions, are compared to thestored value and checked for compliance with the driftband selection . Drift testing is abandoned when thesystem is active . Use Figure 6-6 to evaluate drift er-rors and/or change the drift band .

vEw CELL DRFTYES NO D(17'

f SECTDRPT TO VEWPOS Ira EXIT

sw2 sws

1+0.00%

4+ 0.009'02+0.00%

3+ 0.00%

VEW DRIFT BANDYES NO EXIT

MEW snn sw2 sw3

sw2 sws

oaFr earn " 025 LBSTEP MODIFY EXrT

Mw swt Sw2 Sw3

Evaluate Drift Error

Long term load cell drift problems may be caused byelectrical leakage or system structural problems .Since most systems usually experience inactive peri-ods of 8 or more hours, this test is highly effective atcatching long term drift problems . Long term drift test-ing provides 'early warning detection' for cells thatmay fail completely at a later date.

YES To View Cell Drift (% Deviation From Reference)MEMJ MENU _ Return To Previous DisplaySW1

YES .»

View Individual Cell Drift ValuesSW2 NO M

Step To View Drift BandSW3

EXIT _

Return To Drift Test & Display

Select Polarity Of Drift To View

Individual Cell Drift Display (Polarity As Selected)

ALL Switches Return To Previous Display

View Current Drift Band SelectionMENU MENU _ Retum View Cal DriftSW1

YES ...

View Current Drift Band ValueSW2

NO ...

Return To Drift Test & DisplaySW3 EXIT _

Return To Drift Test & Display

Modify To Enter New Drift Band ValueMENU MENU _ Retum To View Drift Bard$W1

STEP _ Return To View Drift BandSW2

MODIFY_ Modify Current Drift Band SelectionSW3 EXIT _ Return To View Drift Band

" Switch Pressed

Figure 6-6. Drift Error Evaluation Instructions

Page 6-6

MENU MENU _ Return To Previous DisplaySW1 POS .� Mew Positive Cell DriftSW2 NEG _ View Negative Gel DriftSW3 EXIT _ Return To Drift Test & Display

6.2.4 Noise TestNoise testing identifies a load cell(s) that is experienc-ing unusual amounts of static state signal 'jitter' . Thestandard deviation for each cell output is computedevery 256 A/D conversions (12 seconds) . The stand-ard deviation values of all cells are-then compared toone another . If the value of any one cell exceeds thevalues of all other cells by an amount greater than theimbalance band, an error is issued against that cell .Use Figure 6-7 to view the standard deviation for eachcell and/or change the imbalance band value .

NUJ SWf sm sw3

NEN1

VIEW STD DEVIATION -YES NO EXIT

1+000 4+0.002-1-0.00

3+ 0.00S" am SW3

VIEW IMBALANCE BAND

MEW swt Wry am

IMBALANCE BAND " OS LBSTEP MODIFY EXff

am

Evaluate Noise Error

Excessive noise may be introduce into a load cellthrough structural vibration or installation location (forklift traffic, etc .) . Another factor could be a loose orcorroded load cell connection. If a load cell checksout 'good' for all other diagnostic tests but fails thenoise test, carefully check the mounting location andelectrical connections .

NOTE: Noise testing also provides a good way to setthe DXp-40 filter. Try the following :1) . Turn the filter off (select 50 msec filter, Figure 5-2) .2) . View the standard deviation for each load cell (dur-ing non-error condition) .3). Enter the highest value standard deviation as thenoise band value.

YES To View Standard Deviation

MENU MENU .» Return To Previous DisplaySW1

YES _

View Individual Load C41 NoiseSW2 NO _

Step To View Imbalance BandSW3

EXIT ...

Return To Noise Test & Display

Individual Cell Values In Display Units

ALL Switches Return To Previous Display

YES To View Imbalance Band

MENU MEM1 ._ Return To View STD DeviationSW1

YES _

View Current Imbalance Band SelectionSW2 NO _

Return To Noise Test & DisplaySW3

EXIT ...

Return To Noise Test & Display

Modify To Alter Imbalance Band Selection

MENU MENU .. Return To View Imbalance BandSW1 STEP . . . Return To View Imbalance BandSW2 MODIFY.. Modify Imbalance Band PercentageSW3 EXIT _.

Return To View Imbalance Band

- Switch Pressed

Figure 6-7. Noise Error Evaluation Instructions

Page 6-7

6.2.5 OverloadSince overload is critical to system safety and loadcell integrity, it is checked every 50 msec. Cell over-load limits are typically set at the cell's rated capacity.A running peak value for each cell is recorded andmay be checked (or cleared) at any-timer--in olderweigh systems, overload typically signaled a total sys-tem overload (system capacity exceeded) .

Yepat For Bwh Lad Cdl

SWI

Load Cell Overload Limit Selection

CELL OVERLOAD UMMSYES NO EXIT

am NO

CELL #1 - 100000 LBSTEP MODFY EXIT

MENU SWI am sws

0

CELL #1 = 100000 LBsir eJraR oar

- SWAM Pnwd

Figure 6-8. Overload Error Evaluation Instructions

The DXp-40, however, can alert an operator to a sin-gle cell overload, even though total weight does notexceed system capacity. Single cell overloads can becaused by heel buildup, shock loads (mixerstblenders,ingredient free fall force, etc.) and poor system de-sign . Figure 6-8 provides a flow diagram for celloverload evaluation .

YES To Check Load Cel(s) Overload Condition

MENU MENU .» Return To Previous DisplaySW1 YES _ Figure 6-7 - Evaluate Overload Error(s)SW2 NO _

Step To Recall ValuesSW3 EXIT . .

Return To Cell Dlagnostk;s

Evaluate Current Values, Change If Necessary

MEMJ MENU _. Return To Previous DisplaySW1

STEP _ Step To Next Load CellSW2 MODFY Enter Or Alter Displayed ValueSW3 EXIT _

Return To Cell Overload Limits

Enter Or Alter Displayed Data ValueNEW MENU .. Advance To Enter - Exit MenuSWI

SHFT - Move Cursor To Next DlgltSW2 NC _

Increment Displayed ValueSW3 DEC _

Decrement Displayed Value

ENTER To Save Data, Exit For Next CellMENU MENU ~. Return To Previous DisplaySWI SHF T _ Return To Previous DisplaySW2 ENTER . Enter Displayed ValueSW3 EXIT . ..

Return To Cal Number Display

6.2.6 Recall ValuesRecall values allows an operator to view the currentTARE, ZERO, Balance, and Deadload values . Figure6-9 shows how to recall any or all values .

Recall Values (Zero, Tare, Balance or Deadload)

Recall Zero?

O

ifa" c llx uon Pwrfonsaa

RECALL PEAK LOAD?

UMTS TO DISPLAYLB %LOAD EXIT

WNU SIAM swz s"0

Figure 6-9 . Recall Values Flow Diagram

YES to Vlew Current Manual ZERO Value

YES To View Or Reset Peak Value Registers

Select Individual Cell DIWay UfdtsMEdJ MENU .. Back Up To Previous DisplaySWt

LB -

Display UnIts As PoundsSW2 %LOAD -Dbpiey Ults As % LoadSW3 EXIT -


- 3lwllehRsswd

YES NOawl an

If DaasOW Cafatien Parforand

EXITaura0

MENU MENU _ Back Up To Previous DsplaySWI YES _ View or Reset Peak/Hold RegistersSW2 NO _ Advance To Recall Cell Balance?SW3 EXIT _ Return To Reed Values?

Recall Cell Balance? YES To Review % Call SensItIft

YES NO EXIT hem MENU .» Back Up To Previous DispaySWI YES _ View Individual Cal Balance valuesLem awl

0 SW2 NO - Step To Rood Values?SW3 EXIT .. Return To Recd Values?

1+ 2500% 4+ 2500% View Cell % Sensitivity

2+ 25:00% 3+ 2500% All Swlt&es - Previous Display

SAM awe aura0 D O

Recall Deadload? YES To View System Deadload Value

YES NO EXIT MW MENU _ Back Up To Previous DisplaySWI YES _ View "sin Deadload

MEW awt swi0 0

SW2 NO - Step To Recall Values?SW3 EXIT _ Go To Rood Values?

+ 35100 LB YES To View kldvidual Cell Deadoad Values

IND EXfT how MW .» Back Up To Previous DisplaySWI FD - Select Ind. Cal Display Units

MINU Swi awl an Sw2 _0 SW3 EXIT- Return To Previous Display

mewD

YES NO EXITam awl am

MENU MINU .. Bade Up To Previous DlaplsySWI YES _ View Total or Ind Cell ZEIRO Values)SW2 NO - Stop lb Recall Tare?SW3 EXIT _ Return To Recd Values?

Recall Tare? YES To View Current Tare Value

YES NO EXIT MBU MBW _ Back Up To Previous DisplaySWI YES _ View Total or hd. Cell Tare Vau(s)

LEW SWIWI am am SW2 NO - Step To Reed Cal Balance or DeadoedO O ® O SW3 EXIT .. Return To Reed values

6.2.7 Degrade Mode Function

If a diagnostic test identifies one or more load cells inthe system as providing faulty data, it is possible us-ing degrade mode operation to eliminate theerroneous data from the cell(s) contributing todha sys-tem weight measurement. Since the DXp-40measures each channel independently and digitallysums the weight information, degraded mode opera-tion shuts of the actual measurement from thesuspect channel(s) and uses a calculated digital sub-stitute value, corrected for system balance andchannel sensitivity. The resulting system performancewill be reduced somewhat, but will still be compen-sated for load imbalance . This mode of operationmakes it possible to continue weigh system operationwith minimal interruption .

To activate degraded mode operation it is necessaryto shut-of the suspect channel using the Cell Enablemenu (Figure 6-10) accessed via the keypad . It is notpossible to automatically activate this mode intemallyor remotely through the serial port.

Prior to degrade mode operation, a degrade mode ref-erence must be established . This referenceestablishes individual cell characteristics for use in fu-ture degrade mode operation . To enter the referencepoint, perform the following :

MODIFY CELL ENABLES?YES NO EXIT

wear sine sm SM0 77 l

CELL #1 IS ONMODIFY NEXT

Neil swr SON sws

rEt Swf SW sme 0

Degrade Setup Menu

0* accessabie If al eels are 'OK

ACQUIRE REFERENCEYES NO EXIT

KM sm SN2 Svc

IS SCALE LOADEDYES NO EXIT

- Reference value MUST equal or exceed 2016 of system rated capacity

= - switch Praeasd

Figure 6-10 . Degrade Mode Cell Selection and Reference

Page 6-10

[1] Calibrate the system and acquire a system deadload zero(mVN calibration also must acquire deadload zero).

[2] Load system to at least 20% of full scale capacity.[3] Proceed to the Degrade Setup Menu (Figure 6-10) and

make sure all cells are `On' .[4] With a display of ACQUIRE REFERENCE choose YES to

advance to IS SCALE LOADED. Choose YES again to en-ter reference value.

When degrade mode is operational, a capital 'D' willappear on the right side of the intemal LCD weightdisplay . A capital 'D' also will be transmitted in thestatus portion of the terminal and continuous serialoutputs.

If the Modbus option is present, status 1 (registers40003, 40203, and 40403) bit 11 and input 12 (funo-tion 02) will be set to a `1 ' .

NOTE: Degrade mode cannot be implemented re-motely using the serial interface or digital inputs.

NOTE: For proper, degrade mode function, the scalecenter of gravity must remain the same.

NOTE: To enter a degrade mode reference point, 'allcells must be functional, tumed 'On', and the sys-tem must be loaded to at least 20% of total capacity .

YES To Change Cell Status

NENU MENU - Return To Degarade Setup?Sw1

YES -

Modify kidIvidual call SablesSW2 NO _

Step To Acquire Reference If AN Cells 'On'SW3 EXIT -

Return To Degrade Setup?

MODIFY To Turn Bad Cep 'OffMENU MENU - Return To Previous DisplaySWt MODIFY_ Modify cep On/Off StatusSW2 NEXT - Step To Next CepSW3 EXIT -

Return Modify Cep Enables

YES To Acquire Degrade Span Reference

MENU MENU » Return To Modify Cep Enables?SW1

YES _

Prepare To Acquire ReferenceSW2 NO _

Return To Degrade Setup? DisplaySW3 EXIT _

Return To Degrade Setup? Display

YES To Establish Degrade Reference Point-MENU MENU - Return To Previous DisplaySW1

YES -

Acquire And Store Reference Value (20% mrt)SW2 NO -

Return To Previous DisplaySW3 Off_


6.2.8 Remote Input Enables (Optional)Paragraph 8.3 .1 defines the four remote inputs option-ally available with DXp-40 instruments. This section ofdiagnostic configuration determines whether or not in-dividual remote inputs are enabled. Follow the flowdiagram presented in- Figure 6-41 to enable or disableeach of the four inputs as desired.

DXp-40 Remote Input Enable/Disable Selection

SELECT INPUT ENABLEYES NO EXIT

Mean swl SW2 sw3(

INPUT G/N = ENABLEMODIFY NEXT EXIT

Neal1 sot SW2 sw3O D fi" (~

INPUT ZERO -- ENABLEMODIFY NEXT EXIT

INPUT TARE = ENABLEMODIFY NEXT EXIT

MENU SWI SW2 Sw3

INPUT FLT = ENABLEMODIFY NEXT EXIT

LM Son SW2 SW3D D O

NOTE: Enabling the remote GIN input effectively dis-ables the internal DXp- 40 G/N display and switch(SW2) function (see Figure 4-1). If internal G/N dis-play and SW2 function is desired, DISABLE the G/Nremote input.

NOTE: If the remote filter input is disabled, filter 2 pa-rameters are not accessible (see Figure 6-11explanation).

Choose Enable or Disable of Remote InputsMENU MENU _ Return to DEGRADE SETUPSWi

YES _

Advance to Gross/Net InputSW2

NO _

Return to Cell DiagnosticsSW3

ExIT _

Return to Cell Diagnostics

Choose Remote G/N Enable/Disable

NEW MeM - Return to SELECT INPUT ENABLESsWI

MODFr_ Choose ENABLE or DISABLESW2

NEXT_

Advance to Zero kpASW3

Exrr_

Return to Cd Diagnostics

Choose Remote Zero Enable/DisableMENU Meal .. . Return to SELECT Mn ENABLESSW1

MODIFY_ Choose ENABLE or DISABLESW2

NEXT_

Advance to Tare kputSW3

EXIT_


Choose Remote Tare Enable/DisableMENU KNU _ Return to SELECT INPUT ENABLESSW1

MODIFY_ Choose ENABLE or DISABLESW2

NEXT_

Advance to Filter k4xASW3

EXIT_


Enable Second Filter Option (see paragraph 5.5)MENU MENU _ Return to SELECT INPUT ENABLESSW1

MODIFY_ Choose ENABLE or DISAAeLE-SW2 NEXT_

Return to SELECT INPUT ENABLESSW3

EXIT_


" Selecting DISABLE nullifies second filter option. When enabled,remote input high = filter 1 and remote Input low = filter 2.

- - 9wach Proud

Figure 6-11 . Input Enable Selection

' 7.1 GENERAL

The DXp-40 is equipped with a variety of standardand optional serial output formats that are selectedusing a series of DIP switches (Figure 7-1) . DIPswitch positions 1, 2, and 3 (Table 7-1) allow four for-mat choices ; Digi-System Network, continuous output,terminal/computer interface, and MODBUS RTU. Al-len-Bradley Remote I/O is available as an option, butrequires different documentation (see page 7-9) . Alltypes of DXp interfacing will be discussed in the fol-lowing paragraphs. Positions 4-7 designatetransmitter address for applications requiring morethan one DXp unit (Table 7-2) . Switch position 8 isunused and should be left in the '0' (ON) position .

7.1.1 LCp-400 Digi System Network.Up to 16 DXp-40 transmitters can be networked to theLCp-400 Network Controller. The half duplex formatused to run the network is designed to provide remoteoperation of gross, net, tare, zero, and diagnostics, athigh speed . This format is not intended for direct inter-face with a terminal or computer. The baud rate is se-lectable to accommodate systems with very long (lowbaud) or short (high baud) distances between DXpunits .

7.1 .2 Standard Simplex Output (ContinuousOutput).The simplex output format is designed to transmitgross weight data (ASCII coded) to a remote terminalor computer. The accuracy of this point to point, digi-tal communication interface is much greater thansimple analog current or voltage approximates . Sim-plex outputs are transmitted in the format on page7-2, top left-hand column .

SECTION VIISerial Communication

Table 7-l . Serial Interface andBaud Rate Selections

000loo010110001101011,111

Table 7-2. DXp-40 Transmitter Address Selections

1130000. . . . .

Figure 7-1. Serial Communication Parameter Selection SwitchPage 7-1

Digi-SystemNetworkDigi-System NetworkDigi-System NetworkContinuous OutputContinuous OutputTerminal InterfaceTerminal InterfaceMODBUS RTU

lnterface

STXIADRIPOLIDATAISPIUNITS/MODEISTATUSICRILF

Where:STX=

lchar. Start of Text (02H)ADR=

DXp-40 unit address, 3 ASCII charactersPOL=

Polarity sign ; space for positive data,minus (-) for negative-data. : .

.

...

-. .

.DATA=

7char, six digits with decimal point orleading space, leading zeros = spaces

UNITS=

2 char, in demand mode'LB' or 'KG'1 char, in continuous mode 'L' or'K'

MODE=

2 char, in demand mode . GR (gross), NT (net)TR (tare), or ZR (zero0)1 char, in continuous mode, G (gross), N (net)T (tare), or Z (zero)

STATUS=

lchar, M (motion), O (overload), or E (Error)CRILF=

2 char: carriage return, line feed (ODH/OAH)SP=

1 char, ASCII space (20H)

Total bits per character = 1 start, 1 even parity, 7data, and one stop .

Table 7-3 . Computer/Terminal Interface Protocol

I Terminal Interface

Action

Switch to Gross mode

Switch to Net mode

Switch to Net mode &Tare

Switch to gross mode and Zero

Send Current Weight

Send Current Tare Value

Send Current Zero Value

Send Individual Tare Values

Send Individual Zero Values

Send Individual Gross Values

Send Individual Net Values

Send Individual rnVN Values

Send Individual %Load Values

Page 7-2

7.1.3 Optional Computerrrerminal Interface .This half duplex (transmit and receive) format is de-signed for two way communication between a singleDXp-40, or a network of DXp-40 units, and a com-puter/terminal . Protocol accommodates all operationssuch as gross, net, tare, zero, as well as remote filterselection . Use of this format requires customer devel-oped, device specific software to run the variousnetwork operations . Table 7-3 defines the terminal in-terface protocol .

Response

'010 LG'[adr/poYdatWsp/units/`G'/stat/CRLF]

'01 0 LN'[adr/pol/data/splunits/'N'/stat/CRLF]

101 0 IN ,

[adr/pol/data/sp/units/`N'/stat/CRLF]

1010 LG'[adr/pol/data/sp/units/'G'/stat/CRLF]

'010 LG/N'[adr/poUdata/sp/units/mode/stat/CRLF]

101 0 LT'[adr/pol/data/splunitsrT'/stat/CRLF]

1010 LZ'[adr/poVdata/sp/units/`Z'/stat/CRLF]

1 01 +0+0+0+0 LT'[adr/pol/data/sp(for cells 1-4)/units/`T'/stat/CRLF]

101+0+0+0+012'[adr/pol/data/sp(for cells 1-4)/units/`Z'/stat/CRLF]

'01+0+0+0 +0LG'[adr/poUdata/sp(for cells 1-4)/units/'G'/stat/CRLF]

'01 +0+0+0+0 0 LN'[adr/pol/data/sp(for cells 1-4)/units/'N'/stattCRLF]

101+0+0+0+0 0MV'[adr/poYdata/sp(for cells 1-4)/units/'MV'/stat/CRLF]

'01+0+0+0+0 0%L'[adr/pol/data/sp(for cells l-4Yunits/`%L'/stat/CRLF]

ASCHCommand Description

'G' GROSS

'N' Net

'T' Tare

'ZI zero

,W, Weight

'RT' Recall Tan

`RZ' Recall Zero

`QT' Quad Tare

'QZ' Quad Zero

'IN, Quad Gross

'QN' Quad Net

`QV' Quad rnV/V

`Q°/u , Quad Percent

ASCIICommand Description

Action

Response

'QB'

Quad Balanci

`

Send Individual %Balance Values

'01 +0+0+0+0 O %B'[adr/pol/data/sp(for cells i-4yunits/`%B'/stat/CRLF]

`D%'

Diag. % Load Shift

Send Current % Load Shift

'01 +0.00 +0.00 +0.00 +0.00 D%'[adr/pol/data/sp(for cells 1-4yunits/`D%'/stat/CRLF]

'DZ'

Diag. Zero Shift

Send Current Zero Shift

'01+0+0+0+0 0 DZ'[adr/pol/data/sp(for cells 1-4yunits/`DZ'/stat/CRLF]

Diag. + Drift

Send Positive Cell Drift

'01+0+0+0+0 O D+'[adr/pol/data/sp(for cells 1-4)/units/`D+'/smt/CRLF]

Table 7-3 (cont.) Computer/Terminal Interface Protocol

Diag. - Drift

Send Negative Cell Drift

'01-0+0+0+0 OD-'

'DN'

Diag. Noise Imbalance

Send Current Std . Dev.

'01 +0+0+0+0 0 Dn'(adding 2 decimal places)

[adr/pol/data/sp(for cells I-4)/units/`DN'/stat/CRLF]

'DE'

Diag. Errors

Send Current Diagnostic Errors

'01 LZDNO LZDNO LZDNO LZDNO', CRLFwError for cells 1 - 4L = Load ShiftZ = Zero ShiftD = Cell Drift

N = Noise ImbalanceO = Overload= No Error

`SC'

Set Continuous

Send Constant Weight Data Transmission

[adr/pol/data/sp/units/mode/stat/CRLF]

'SD'

Set Demand

Weight Data Upon Request

'SFxxxxxx'

Set Serial Format: where

Changes To Serial Data FormatXxxxxx 0= 6 digits data

1= 7 digits dataxXxxxx 0= leading spaces

1= leading zerosxxXxxx 0= decimal point

1= no decimal pointxxxxxx 0= units (L/K)

1= no unitsxxxxXx 0= mode (G/N)

1= no modexxxxxx 0= status

1= no status

`Su'

Set Filter Length

Enter or Alter Filter Lengthx=1 : fitter 50 msx=2 : filter 100 msx=3 : filter 200 msx=4 : filter 400 msx=5 : filter 800 msx=6 : filter 1600 msx=7 : filter 3200 msx=8 : filter 6400 ms

,say=,

Set NoiseBand

Enter/Alter Noise Bandxxx= 000 to 250 display counts

'SRxxx'

Set Response Band

Enter/Alter Response Bandxxx= 000 to 250 x 50 ms(0 to 12,500 ms max)

[adr/pol/data/sp(for cells 1-4)/units/`D-'/stattCRLF]

Table 7-3 (coat.) Computer/Terminal Interface Protocol

ASCIICommand Description

Action

Response

`SAX'

Set Band Filter : where

Set New Band Filter: notes 1 & 2x--I: 0:5 seconds

,

. `

' ..' . .

.x=2: 1 secondx=3 : 2 secondsx--4: 4 secondsx=5: 8 secondsx=6 : 16 secondsx=7:32 secondsx=8 : 64 seconds

Note 1

Remote filter settings are not stored in EEPROM and will revert to EEPROM settings upon power down.

Note 2

Remote filter length is averaging applied to raw data before band or response is applied .Remote filter band has its own variable filter (band filt) which is applied to delta data that remainswithin the +/- band. Data remains within the band if the difference between the current data and thelast averaged data is less than or equal to the band setting.

Remote filter response setting is added to the noise band setting . Ifthe change in value from one conversionto the next exceeds the noise band and falls within the response band, the following takes place : the first timedata falls within the response band, the full noise band filter is applied . Ify on subsequent conversions,the change in value still falls within the response band, the noise band filter is progressively reduced untilit reaches a length of 50 msec, at which point the noise band filter is restarted at the current weight value .

When changing data is outside both the noise and response bands, the noise band filter is reset and restarted.

Abbreviations :adr

address, 3 ASCII chars : first two are 'O1' - '16' followed by an ASCII spacepot

polarity : ascii plus or minus signdata

weight data : 7/8 characters, 6/7 digits w/decimal point or leading spacesp

ascii space (20H)units

one character: L=pounds, K=kilogramsmode

one character: G=gross, N=netstat

weigh status : M=motion, O=overload, E=diagnostic error, space--normalCRLF

carriage return line feed: two characters ODH OAH"

single quotes : ASCII character string

Page 7-4

'SSnx'/CR Set Setpoint 'n' Valuen=setpoint #, x=value (up to 7 ASCII chrs followed by CRLF)

Recall Serial Format 'O1 RFxxxxxx'/CRLF

'RL' Recall Filter Length '01 RLx'/CRLF

'RB' Recall Filter Band '01 RBxxx'/CRLF

'RR' Recall Filter Response '01 RRxxx'/CRLF

'RA' Recall Band Averaging '01 RAx'/CRLF

'RSn' Recall Setpoint # Value '01 RSnxxxxxxx'/CRLF

'RO' Recall Set Point Outputs(xxxx=wtpts 4-1) '01 ROxxxx'/CRLFx='0' if setpoint offx--' I' if setpoint on

'Axx' Address '01' - '16' Enable Addressed FSk-40 To CommunicateAll Others, Disabled

7.1.4 Optional MODBUS ProtocolThis interface method is applicable to virtually anyPLC or other process control computer with MODBUScommunication capability . The interface providesweight and diagnostics information and allows for re-mote computer control, of tare, zero, and grosstnetfunctions as well as the ability to download new cali-bration data and set point values .Information istransmitted in blocks of data thereby minimizing poll-ing and response delays. The interface operates withthe DXp-40 configured as the slave device and thehost computer as the master. Table 7-4 presents acomplete overview of register and bit allocations foreach MODBUS format. Figure 7-2 (page 7-9) presentsthe interface baud rate and parity selections .

MODBUS Functions Supported:02 Read Input Status03 Read Holding Registers06 Preset Single Register16 (10 Hex) Preset Multiple Registers

DXP40 Data Formats Provided :FORMAT#1: One 16 bit signed integer -32768 tD 32767 for allweight data mv/v data is divided by 10FORMAT #2: Two 16 bit signed integers for most weight data (thetwo integers must be added together to get -65536 to 65534) One16 bit signed integer for diagnostic & %data One 16 bit signed inte-ger for mv/v data (divided by 10)FORMAT #3 : Two 16 bit signed integers for all weight data (thehigh word, 1st integer, must be multiplied by 32768.0 then addedto the low word, 2nd integer)

Table 7-4 . MODBUS Register Allocations

DXP40 READ ONLY REGISTERS (Function 03)

READ ONLY FORMAT #1ADR #REG

FORMAT #2ADR #REG

FORMAT #'1ADR #REG

ITEM1 - STATUS 3 40001 1 40201 1 40401 12 -STATUS 2 40002 1 40202 1 40402 13 -STATUS 1 40003 1 40203 1 40403 14 - GROSS 40004 1 40204 2 40404 25-NET 40005 1 40206 2 40406 26 - GROSS CELL 1 40006 1 40208 2 40408 27 - GROSS CELL 2 40007 1 40210 2 40410 28 - GROSS CELL 3 40008 1 40212 2 40412 29 - GROSS CELL 4 40009 1 40214 2 40414 210 - NET CELL 1 40010 1 40216 2 40416 211 -NET CELL 2 40011 1 40218 2 40418 212 - NET CELL 3 40012 1 40220 2 40420 213 - NET CELL 4 40013 1 40222 2 40422 214 - MVN/10 CELL 1 40014 1 40224 1 40424 215 - MV/V/10 CELL 2 40015 1 40225 1 40426 216 - MV/V/10 CELL 3 40016 1 40226 1 40428 217 - MV/V/10 CELL 4 40017 1 40227 1 40430 218 - % LOAD CELL 1 40018 1 40228 1 40432 119 - % LOAD CELL 2 40019 1 40229 1 40433 120 - % LOAD CELL 3 40020 1 40230 1 40434 121 - % LOAD CELL 4 40021 1 40231 1 40435 122 - PEAK TOTAL 40022 1 40232 2 40436 223 - PEAK CELL 1 40023 1 40234 2 40438 224 - PEAK CELL 2 40024 1 40236 2 40440 225 - PEAK CELL 3 40025 1 40238 2 40442 226 - PEAK CELL 4 40026 1 40240 2 40444 227 - TARE 40027 1 40242 2 40446 228 - TARE CELL 1 40028 1 40244 2 40448 229 - TARE CELL 2 40029 1 40245 2 40450 230 - TARE CELL 3 40030 1 40246 2 40452 231 - TARE CELL 4 40031 1 40250 2 40454 232 - ZERO 40032 1 40252 2 40456 233 - ZERO CELL 1 40033 1 40254 2 40458 234 - ZERO CELL 2 40034 1 40256 2 40460 235 - ZERO CELL 3 40035 1 40258 2 40462 236 - ZERO CELL 4 40036 1 40260 2 40464 237 - % SENSITIVITY CELL 1 40037 1 40262 1 40466 138 - % SENSITIVITY CELL 2 40038 1 40263 1 40467 139 - % SENSITIVITY CELL 3 40039 1 40264 1 40468 140 - % SENSITIVITY CELL 4 40040 1 40265 1 40469 141 - % LOAD SHIFT CELL 1 40041 1 40266 1 40470 142 - % LOAD SHIFT CELL 2 40042 1 40267 1 40471 143 - % LOAD SHIFT CELL 3 40043 1 40268 1 40472 144 - % LOAD SHIFT CELL 4 40044 1 40269 1 40473 145 - POS DRIFT CELL 1 40045 1 40270 1 40474 146 - POS DRIFT CELL 2 40046 1 40271 1 40475 147 - POS DRIFT CELL 3 40047 1 40272 1 40476 148 - POS DRIFT CELL 4 40048 1 40273 1 40477 149 - NEG DRIFT CELL 1 40049 1 40274 1 40478 150 - NEG DRIFT CELL 2 40050 1 40275 1 40479 151 - NEG DRIFT CELL 3 40051 1 40276 1 40480 152 - NEG DRIFT CELL 4 40052 1 40277 1 40481 153 - NOISE CELL 1 40053 1 40278 1 40482 154 - NOISE CELL 2 40054 1 40279 1 40483 155 - NOISE CELL 3 40055 1 40280 1 40484 1

Page 7-5

STATUS REGISTER DEFINITIONS (Function, 03)STATUS 1 (GENERAL STATUS)

BIT 0 - ACTIVE FILTER, (0) = FILTER 1, (1) = FILTER 2BIT 1 - MOTIONBIT 2 - UNABLE TO TARE/ZERO BECAUSE OF MOTIONBIT 3 - UNABLE TO ZERO BECAUSE OF LIMITBIT 4 - IN CALBIT 5 - DIAG ERRORBIT 6 - LIMIT OVERLOADBIT 7 - A/D OVERLOADBIT 8 - LOST TAREBIT 9 - ZEROBIT 10 - POWERUPBIT 11 - SPARE (0)BIT 12 - SPARE (0)BIT 13 - SPARE (0)BIT 14 - SPARE (0)BIT 15 - SPARE (0)

STATUS 2BIT 0 - SETPOINT 1BIT 1 - SETPOINT 2BIT 2 - SETPOINT 3BIT 3 - SETPOINT 4BIT 4 - OVERLOAD LIMIT CELL 1BIT 5 - OVERLOAD LIMIT CELL 2BIT 6 - OVERLOAD LIMIT CELL 3BIT 7 - OVERLOAD LIMIT CELL 4BIT 8 - A/D UNDERLOAD CELL 1BIT 9 - A/D OVERLOAD CELL 1BIT 10 - A/D UNDERLOAD CELL 2BIT 11 - A/D OVERLOAD CELL 2BIT 12 - A/D UNDERLOAD CELL 3BIT 13 - A/D OVERLOAD CELL 3BIT 14 - A/D UNDERLOAD CELL 4BIT 15 - A/D OVERLOAD CELL 4

STATUS 3 (DIAGNOSTIC ERRORS)BIT 0 - LOAD SHIFT CELL 1BIT 1 - LOAD SHIFT CELL 2BIT 2 - LOAD SHIFT CELL 3BIT 3 - LOAD SHIFT CELL 4BIT 4 - ZERO SHIFT CELL 1BIT 5 - ZERO SHIFT CELL 2BIT 6 - ZERO SHIFT CELL 3BIT 7 - ZERO SHIFT CELL 4BIT 8 - DRIFT CELL 1BIT 9 - DRIFT CELL 2BIT 10 - DRIFT CELL 3BIT 11 - DRIFT CELL 4BIT 12 - NOISE CELL 1BIT 13 - NOISE CELL 2BIT 14 - NOISE CELL 3BIT 15 - NOISE CELL 4

Table 7-4 (cont.) Status Register Sit Definitions

Page 7-6

Table 7-4 (cont.) DXp-40 Read/Write Register Allocations

DXp-40 Read/Write Registers (Functions 03, 06, 16)

Format #1

Format #2

Format #3Read/Write

ADR #REG

ADR #REG

ADR #REG

MOTION TIMER

OVERLOAD00 = 1/2 SEC

any pos weight value01 = 1 SEC02 = 2 SEC03 = 3 SEC

Note: counts refers to displayed counts . If the display is counting by 2 (x2 increments), then preseting a register to 9would equal 18 Ib/pli/etc.

CommanD' 40101 1 40301 1 40501 1SETPOINT 1 40102 1 40302 2 40502 2SETPOINT 2 40103 1 40304 2 40504 2SETPOINT 3 40104 1 40306 2 40506 2SETPOINT 4 40105 1 40308 2 40508 2FILTER 1 LENGTH 40106 1 40310 1 40510 1FILTER 1 BAND 40107 1 40311 1 40511 1FILTER 1 RESPONSE 40108 1 40312 1 40512 1FILTER 1 BAND AVERAGE 40109 1 40313 1 40513 1FILTER 1 MOTION 40110 1 40314 1 40514 1FILTER 1 MOTION TIMER 40111 1 40315 1 40515 1FILTER 2 LENGTH 40112 1 40316 1 40516 1FILTER 2 BAND 40113 1 40317 1 40517 1FILTER 2 RESPONSE 40114 1 40318 1 40518 1FILTER 2 BAND AVERAGE 40115 1 40319 1 40519 1FILTER 2 MOTION 40116 1 40320 1 40520 1FILTER 2 MOTION TIMER 40117 1 40321 1 40521 1DIAL SHIFT LIMIT 40118 1 40322 1 40522 1DIAG ZERO SHIFT LIMIT 40119 1 40323 2 40523 2DIAG DRIFT LIMIT 40120 1 40325 1 40525 1DIAG NOISE LIMIT 40121 1 40326 1 40526 1OVERLOAD CELL 1 40122 1 40327 2 40527 2OVERLOAD CELL 2 40123 1 40329 2 40529 2OVERLOAD CELL 3 40124 1 40331 2 40531 2OVERLOAD CELL 4 40125 1 40333 2 40533 2

COMMAND SETPOINT DIAG SHIFT LIMIT01 = TARE net weight any pos weight value 0 - 99 (0% - 9.9%)02 = ZERO gross weight

DIAG ZERO SHIFT LIMIT DIAG DRIFT LIMIT DIAG NOISE LIMITany pos weight value 0 - 99 counts 0 - 99 counts

FILTER LENGTH NOISE BAND BAND FILTER MOTION00 = soms 0 - 250 counts 00 = 0.5 seconds 00 = OFF01 = looms ie. if counting 01 = 1 second 01 = 1 count02 = 2OOms by 21bs : 02 = 2 seconds 02 = 2 counts03 = 400ms 02 =41bs 03 = 4 seconds 03 = 3 counts04 = Booms 04 = 8 seconds 04 = 5 counts05 = 1600ms 05 = 16 seconds 05 = 10 counts06 = 3200ms RESPONSE BAND 06 = 32 seconds 06 = 20 counts07 = 6400ms 0 - 250 counts 07 = 64 seconds 07 = 50 counts

INPUT 1 - ACTIVE FILTER, (0) = FILTER 1, (1) = FILTER 2INPUT 2 - MOTIONINPUT 3 - UNABLE TO TARE/ZERO BECAUSE OF MOTIONINPUT 4 - UNABLE TO ZERO BECAUSE OF LIMITINPUT 5 - IN CALINPUT 6 - DIAG ERRORINPUT 7 - LIMIT OVERLOADINPUT 8 - A/D OVERLOADINPUT 9 - LOST TAREINPUT 10 -ZEROINPUT 11 - POWERUPINPUT 12 - SPAREINPUT 13 - SPAREINPUT 14 - SPAREINPUT 15 - SPAREINPUT 16 - SPARE

INPUT 17 - SETPOINT 1INPUT 18 - SETPOINT 2INPUT 19 - SETPOINT 3

INPUT 24 - A/D UNDERLOAD CELL 1INPUT 26 - A/D OVERLOAD CELL 1INPUT 27 - A/D UNDERLOAD CELL 2INPUT 28 - A/D OVERLOAD CELL 2INPUT 29 - A/D UNDERLOAD CELL 3INPUT 30 - A/D OVERLOAD CELL 3INPUT 31 - A/D UNDERLOAD CELL 4INPUT 32 - A/D OVERLOAD CELL 4

INPUT 33 - LOAD SHIFT CELL 1INPUT 34 - LOAD SHIFT CELL 2INPUT 35 - LOAD SHIFT CELL 3INPUT 36 - LOAD SHIFT CELL 4INPUT 37 - ZERO SHIFT CELL 1INPUT 38 - ZERO SHIFT CELL 2INPUT 39 - ZERO SHIFT CELL 3INPUT 40 - ZERO SHIFT CELL 4INPUT 41 - DRIFT CELL 1INPUT 42 - DRIFT CELL 2INPUT 43 - DRIFT CELL 3INPUT 44 - DRIFT CELL 4INPUT 45 - NOISE CELL 1INPUT 46 - NOISE CELL 2INPUT 47 - NOISE CELL 3INPUT 48 - NOISE CELL 4

Table 7-4 (cont.) Input Status Bit Designations

INPUT STATUS DEFINITIONS (Function, 02)

Page 7-8

INPUT 20 - SETPOINT 4INPUT 21 - OVERLOAD LIMIT CELL 1INPUT 22 - OVERLOAD LIMIT CELL 2INPUT 23 - OVERLOAD LIMIT CELL 3INPUT 24 - OVERLOAD LIMIT CELL 4

MODBUS Configuration Parameters

7.1 .5 Optional Allen Bradley Remote 1/OThis interface option uses Allen Bradley componentsin the DXp-40 to establish a remote I/0 network com-munication link to the PLC 5 series of programmablelogic controllers . To the PLC, the DXp-40 represents1/4 rack of discrete I/0 with 32 bits of input and outputimage files. All weight and status data uses discretereads and writes to communicate scale information tothe PLC in the shortest time possible. Non time criti-cal information such as higher level diagnostics relyupon block transfers.

Figure 7-2. MODBUS Baudrate and Parity Selections (accessed from main menu)

The complete details of this interface are covered inthe BLH Allen-Bradley Remote 1/0 Interface Manual(TM014).

MODBUS NTERFACE? YES To Configure MODBUS Parameters

YES NO EXrr .. f MENU MENU - Advance To 'DXP40 Version Information'SW1 YES - Configure MODBUS Interface

MEMJ sm SN2 SWS SW2 NO _ Go To IDXP40 Version Information'SW3 EXIT . .. Return To Live Operation

BAUDRATE = 9600 Modify To Select 2400, 4800, 9600, or 19200 Baud

STEP MODIFY EXIT MENU MENU _ Return To Previous DisplaySW1 STEP _ Advance To Parity Selection

Menu swi swa SW2 MODIFY.. Select Desired Baud Rate0 0 SW3 EXIT - Return MODBUS Interface?

No Parity Modify To Select Parity - No, ODD, EVEN

STEP MODIFY EAT MENU MENU _ Return To Previous DisplaySW1 STEP _ Return To MODBUS Interface?

MEW swi Svc sws SW2 MODIFY. . Select Desired Parity OptionD 0 SW3 EXIT .. . Return To MODBUS Interface?

8.1 GENERAL .

The DXp-40 is available with optional analog outputsand discrete inputs and outputs that allow it to beused as a blind local controller supervised by a hostcomputer (Figure 8-1) .


"100000 LB GROSSM GM ZER0

h6JJ111111110

SECTION VIIIProcess Control

SETPOYJTS ?YES NO EXIT

MEW sm am sm® 0

BLH DXP40

VER 10OPTIONS -1-2-1

®-Swih ta d

This control strategy off-loads simple control actions tothe DXp-40, thereby reducing processing overhead inthe host. It also maximizes response time for moreprecise set point cutoff resulting in less product vari-ation.

LIVE WEIGHT DISPLAY, GROSS MODEMBJU NBdU .. Advance To DWWFilter Setup Unless Errorsort

WD _

Display IncilvIdual toad coilsW_

switch To Net ModsZERO - Push To Zero

to enter/alter Digital Flits" ParametersWW _ Advance To `Cell Dlagnoatloe'YES .-

Enter Or Arer Filter ParametersNO -

Go TO Col Diagnosticst7UT _


M: Load ShMt, Zero SMM Drift, Nolse, Raw DateMENU - Advance To loo Oeltratbn'YES �.

Perform Diagnostic EvaluationNO -

Go To Do Calibrationt00T _

Ream To Live Operation

to Pwfonn System calibrationNIO U _ Rstm TO Uve OperationYES -

Enter Or Alter caMrstion SettingsNO -

Retrm To Uve OperationEW _


To Enter/Alter Analog Output ParametersMOW- Advance To 'Setpolrds7YES_

Enter/Alter Analog Output ParametersNO -

Go To Seypottts?EXIT -


YES To Conflgtre Relay Output FunctionsNEMJ NENU - Advance To LIODBW Interface?SWf YES _

Conflore Set Point Relay Outputsawl NO -

Go ToMODBW Interface?SW3 EXrr - Return Tb Uve Operation

View Software Version# and Option StatusMENU MEM - Return To Live Operation

Figure 8-1 . Analog and Setpoint Selections in Main Menu

Page 8-1

uetu am am amD O

SW2Sw9

DWAL FLTER SETUP YESYES NO EXIT WW

Sortkew D D SW2O SW3

CELL DIAGNOSTICS CFYES NO EXIT MENU

SWtSW2SW3

DO CALBRA'n0N? YES

YES NO EXrr LOWSWf

MEW am am SW2SW3

ANALOG OUTPUT SETUP? YES

YES NO EXIT MMSWf

Lam®

am am~ 0 SW2

SW3

MCOBUS WTERFACE? YES To Configure MODBUS Comrnunication ParametersYES NO EXIT NEM MW- Advance To 'DXP40 Version Information'soil YES _ contigtre MODBUS interface

1031 , swi am SAM SW2 NO - Go To 'DXP40 Version Information'fiis D SW3 EXrT _ Return To Uve Operation

8.2 OPTIONAL ANALOG OUTPUT

The DXp-40 is available with an optional 0-10 V and420 mA analog output, representing either gross ornet weight . This output is based upon a 16 bit digitalto analog (D-A) conversion which represents. up to,one part in 65536 of analog precision . The scaling ofthe output is accomplished after the DXp-40 is cali-brated and can be ranged for any portion of the grossor net weight output curve .

RAM

kew

PAM

ANALOG OUTPUT SETUP?YES NO EXITswi

NEM sm

SM

4MA (OV) _ +0000000 LBSTEP MODIFY EXIT

20MA (10V) _ +0010000 LBSTEP MODIFY EXIT

TRACK GROSS WEIGHTSTEP MODIFY EXIT

CALIBRATE OUTPUT?YES NO EXIT

MM sm sw2 swato ® o

4MA (0000002 COUNTSSTEP MODIFY EXIT

20mA00065002000NTSSTEP MODIFY EXIT

SAM

Analog Output Configuration

SIMS

Systems using the analog output for level control willtypically configure the output to track gross weight(live product weight) . Batch control systems that useweight as a variable to determine set point cutoffs canbe configured to operate in the net weighing modewhile using a discrete remote input to activate the tarefunction . Connect a current/volt meter to the appropri-ate analog output points (see Figure 2-5) and proceJewith configuration as shown in Figure 8-2 .

YES To Confl,Rre Or Re-Core The Analog OutputMENU MENU ..SW1 YES _

Perform Analog Output ConfigurationSM NOSw3 ENT

View/Modify Zero Reference Analog Output ValueMM MBII) _ sack lip TO Previous DisplaySWf STEP .. Go To 2MM 00V) Analog Reference SetupSW2 MODIFY-Enter/Alter 4mA (OV) Output Weight ValueSM EXIT - Return To Mabg Output Setup?

View/Modify Full Analog Value (Usually Scale Capacity)MENU MENU - Bad* up To Previous DisplaySM STEP .. Go To Grow/Not Trad*gSw2 MODIFY-.Moc9ty Displayed weight ValueSW3 EXIT ..

Return Analog Output Setup?

Select Gross Or Net Weight Tracking For Analog OutputMENU MENU - Badc Up To Previous DisplaySW1 STEP _ Go To Caftrate Output?SW2 MODIFY-Select Gross Or NetSW3 DOT ..

Return To Analog Output Setup?

YES To Customize Analog Output RangeMENU MM - Back Up To Previous DisplaySM

YES ».

Set Low Analog Output ReferenceSW2 NO -

Go To Analog Output Setup?SW3 EXIT - Go To Analog Output Setup?

Establish Low Analog Output Reference PointMENU MENU - Sadc Up To Previous DisplaySW1 STEP - Go To cabrsf Output?SW2 MODIFY-Set Count Value For Zero Analog OutputSW3 EXIT -


Establish High Analog Output Reference PointMENU MENU _ Back up To Previous DisplaySW1

ST'S .. Go To Celxate Output?SW2 MODIFY-Set Count Value For Full Analog OutputSW3 EXIT ..


" swath Rwned

Figure 8-2. Analog Output Configuration Flow Diagram

Page 8-2

8.3 OPTIONAL DISCRETE INPUTS andOUTPUTS

8.3.1 InputsRemote initiation of zero, tare, gross/net, and a twoposition digital filter can be : accomplished=-using-theoptional remote input connections (Figure 8-3). Re-mote inputs can be triggered by 12-24 Vdc inputsignals (,DIAL A - common output rating on manyPLCs), open collector TTL devices (DIAL B), or otherrelays (DIAL C) .

Open collector TTL and 12-24 VDC inputs are en-abled in the logic low ('0') state . Logic low voltage isless than 5 Vdc and current sinking capability must beno less than 3 mA. For a logic high ('1'), the voltagerange is 10 to 28 Vdc. IfTTL triggering is desired,open collector componentsMUST be used.

+ 15V

DiAG A

DIAG B

Figure 8-3. Digital Input Functions and Circuitry

When using external relays, a closed relay equals '0'when one side of the relay is connected to digitalcommon and the other side is connected to the input .A'1' is achieved by opening the relay.

PLC or DCS batch control systems can be configuredto use these remote functions in combination with setpoint outputs to provide local ingredient add/dischargecontrol.lnputs function as shown in Figure 8-3 .

NOTE: DXp-40 units ship with all remote inputs dis-abled . To enable any or all of the remote inputs, refer

to paragraph 6.2.8 for in-structions .

TYPICAL PLCIDCS INTERFACE

'I'= 12 to 28 Vdc'0'= Equal to or less than 5 Vdc

TYPICAL OPEN COLLECTOR TTL INTERFACE

'1'= Open collector'0' = Vce equal to or less than 5 Vdc

TYPICAL RELAY INTERFACE

'1' = Open contact'0' = Closed contact

Digital InputsINPUT # OPEN (1) CLOSED (0)Input 1 Gross NetInput 2 - - - ZeroInput 3 - - - TareInput 4 Filter 1 Filter 2

8.3.2 OutputsFour programmable contact relay outputs are avail-able as set point or diagnostic alarm outputs. In theset point mode, each relay can be programmed totrack gross or net operation and to have a deadbandto eliminate relay chatter.

In addition, the polarity y(normally open or normally closed 'position)'of the re-lay is selectable using jumpers on the relay board(units are shipped in the normally open position) .Aso, the relay condition above or below set point, oroperation and a polarity sensitive mode is selectable.Set point values can be entered via the keypad or re-motely through the serial port .

SETPOINTS?YES NO EXIT

Setpoint Relay Output Configuration

SETPOYT VALM8?YES NO EXIT

SETPONT GONFImYES NO EXIT

MW sw+ sw2 swa

SETPOIYT # (1-4)STEP MODIFY EXIT

- swmh Pr aW

Figure 8-4. Relay Output Configuration

Page 8-4

In addition to the use of relays for set point operation,the outputs can be configured to track any of the op-tional diagnostic functions . This provides a verysimple method of communicating diagnostic alarms toa host computer or operator. Figure 8-4 provides in-structions for relay configuration and Figure 8-5 (nextpage) shows how to enter actual setpoint values . Ta-bles 8-1 and 8-2 (next page) show setpoint polarityand hysteresis capability .

NOTE: NC/NO (normally closed/normally open) selec-tion not available with solid state relays

YES To ConVre Or Re-Configure The Analog OutputMM MENU -SM YES _

Perform Setpobt Output ConfigurationSM NO _SM EM _

YES To Enter/After Aciuel Setpolnt ValuesMENU M_ eadk up To Previous olaplaySM YES _ Go To se0oht Entry Sub-Wnuft" 8-5)SW2 NO _

Advance To Setpolnt CorNlpuratlonSM EXIT ..

Return To Setpoints?

YES To Configure SetpoiM Type, Polarity, and HysteresisNENU NEW _ Badc Up To Previous DisplaySW1

YES _

Boon Setpoint ConfigurationSW2 NO _

Return To Setpohts?SW3 EXIT _

Return To SeVcints?

Vlew/Moddy Setpoint (1-4) ConfigurationNEtaJ MENU .» Back Up To Previous DisplaySM STEP - Sebd Next SstpohtSM MODIFY-Make Changes To current Set"SW3 EXIT _

Rehm To Previous Display

GROSS SETPONT Select SetpoInt 'Type' From Table 8-1 (Gross, Net, Alarm)

STEP MODIFY EXIT MBM MBW _ Bad* Up To Revbus DisplaySM STEP _ Go To Next Parameter Selection

MEW swr sm swe SM MODFY_Chsngs Setpotnt 'typeSW3 EXIT _ RetUM To Setpokut # (1-4)

ON BELOW SETPONT Choose Relay ion' Status (Above Or Below Setpoint)

STEP MODIFY EXIT NEMJ MENU _ Back Up To Previous DisplaySM STEP _ Go To Next Parameter Selection

NEW swi SIM am® 0

SW2 MODFY_Changs Relay Energized COn9 StatusSW3 EXIT _ Return To Setpotut # (1-4)

HYSTERESIS = 000010 Enter/Alter Setpolnt Hysteresis Value

STS MODIFY EXIT MEMJ MDN _ Back Up To Previous DisplaySW1 STEP _ Go To Setpoht # (1-4)

wsW0

swr sw2 surea i 0

SW2 MODIFY-View Or Modify Currant Hysteresis ValueSW3 EXIT .. Return To Setpolnt # (1-4)

MEMJ NEW _ Return To Previous DisplaySWI

STEP .» Select Next Setpoint (1-4)0

SW2 VIEW ._ View Existing Setpoint ValueSW3 EXIT -.

Return To Previous DisplayD D

MENU MEW _ Bade Up To Previous DiapiaySWI

STEP .. Return To Setpoint #(1-4) VskieSWI

®

0

SW2 MODIFY_Change Displayed Setpolnt ValueSW3 EXIT .»

Return To Setpoint e(1-4) Value

MEWD

Setpoint Entry Sub-Menu

s+(raYva.Ur:-srEP vEw ewr

srPrrr " 0000000 LBSTEP MooFr ovr

DiXcmsm ALARMSi~ oQr

Osw3D

View Current Setpoint Value

=* SWAtch Pressed

Figure 8-5 . Setpoint Value Entry Sub-Menu

Table 8-1 . Relay Output Selections and Parameters

Table 8-2 . Relay Output Polarity Selections

Modify To Enter/Alter Displayed Setpoint Value

No Setting For Diagnostic Alarm OutputsNEW . MEW _ Return To Setpoint #(1-4) ValueSWI

STEP _ Return To Setpoint +i(1-4) Value

SW3 EXIT .»

Return To Setpoint #(1-4) Value

Selectable Setpoint Types And Respective Parameters

Setpoint Type Programmable Parameters

Gross Setpoint On Below Or Above HysteresisNet Setpoint HysteresisDiagnostic Alarm

Setpoint Type Relay Energized Hysteresis Active

Gross On Below Setpoint Below Setpoint Below Setpoint

Gross On Above Setpoint Above Setpoint Above Setpoint

Net Setpoint (ABS Value) Below Setpoint Below Setpoint

Diagnostic Alarm If Diagnostic Error None

Spare Parts

Documentation

Accessories

Appendix A

Appendix A1

Power Supply/AD Board PN 465741-3Display Board (standard LCD panel) PN 466003-3Standard CPU Board w/o EPROM PN 466217-2Programmed EPROM (specify code) PN 466216-1

(147697-8)Load Cell Terminal Block Connector (7 pos) PN 149005-8RS-485 Terminal Block Connector (4 pos) PN 148709-8Analog and Relay I/O Board (Optional) PN 466870-2CPU Board with Allen-Bradley Remote I/O PN 466805-2

(w/o EPROM)

Outline Drawing NEMA 4/4X PN 464952-3Outline Drawing Exp . Proof PN 465545-3Outline Uncased PN 466211-3Interconnect Wiring PN 466181-3Assembly Drawing PN 466126-3Operator's Manual TM 008

625 Calibrator PN 203797Conduit Fitting Kit PN 465231Cable Fitting Kit PN 465232

Appendix

Outline and Wiring Drawings

Customer Wiring

Page B-2

Outline Standard Enclosure

Page B-3

Outline Explosion-Proof Enclosure

Page B-4

Appendix B-1

CAD ML NTME466181

4

OFF

C

IRK VOLTAGE SELECTOR SWRCN

HAZARDOUS AREA

DIVISION 2 APPROVAL

CL 1, DIV 2 OR A-0

CL 2, DIV 2 GR F,GCL 3, DIV 2

CH4 CH3 CH2 CHI

to_

86Q9629IT VIvio

IJ:1

IFNNN NN

@

n NN wg~_N N N

1 1 1 + + +

I I I + + + U=1

I I I } + + N

I I I + + +

AUX 2MENU

SAM SELRATE ADOR~!L73~Y1-1

a9 tI EYII I~

3

FUSE REPLACEMENT 1/M~

A b

t t t t

n a n -

1Sb a$$$$ dd~id~d~~

HAZARDOUS AREA

DIVISION 2 APPROVAL

CL 1, DIV 2 OR A-D

CL 2, DN 2 GR E,F,GCL 3, DN 2

CSA

2

LOAD CELL CH2

POWER INPUT

IIS/220 VAC 1/4 AMP SO - 00 HI_CAMWam

LANE SELECTOR SNTO1 MUST BE IN

PRMER POSITION OR DAMAGE MAY

OCCUR__

RELAY OUTPUT MA%NUM RATINGS

20V AC/DC Al 0.4 NIPS

RELAY POINTS AM SET FOR NORMALLY OPEN

CONDITION. FOR NORMALLY CLOSED CONDITIONREFER TO MANUAL

J

LOAD CELL INTERCONNECTING

WIRING

JUMPERS SIONK TYPICAL COLOR

SEENOTE 2

CSHKLD VELLOw

NOTES :

I . JUMPER WIRES REQUIRED FOR FnUR WIRE LOAD CELLS

2 . FOR SYSTEMS USING TENSION LOAD CELLS. THE REDAND WHITE LEADS MAY NEED TO BE REVERSED FORPOSONE OUTPUT.

DIGITAL INPUTS

INPUT / OPEN CLOSED

INPUT 1 GROSS NET

INPUT 2 --- ZERO

INPUT 3 ---- TARE

INPUT 4 FILTER I FILTER 2

TYPICAL INPUT

LC

+15V

1001(INPUT

1N4004

0 - 10V OPTION

PIN NAME SSIGNAL

LOAD RESISTANCE

0 - IOV + 25K OHM

COM - MIN

4 - 20MA OPTION _

PIN NONE S-NK LOAD RESISTANCE

4 - 20MA + 600 OHM

COM MAX

RS 485 COMMUNICATION

SIGNALNAME SIGNAL

TIm+ TRANSMIT DATA +

TIC- TRANSMIT DATA -

TWYRH70RJUMPER THESE PONS TOCONNECT ME INTERNAL 220

TERMINATORow RESSToR ACROSS DATALINES. INSTALL ONLY ON 7NE(END) LAST DXP ON THECOMMUNICATIONS LINE

AUX 1/0 OPTION

PINNNIE Tn SIC

ONE, OWA COMMON

RID RECENT DATA

SN 5 VOLTS ISOLATED

GD TRANSMIT DATA

RST REQUEST TO SEND

BAUD RATE

SWITCH POS BAUD1 2 3

RATE - INTERFACE

ON ON ON - 9600 NETWgIBW INTERFACEOFF ON ON - 28M HEIYgIM INTERFACEON OFF ON - $7600 NETWORK INTERFACEOFF OA ON- 1200 CONTINUOUS OUTPUTON ON OFF- 906 COKFINUOVS OUTPUTOFF ON OF - 1240 TERMINAL ,INTERFACEON OFF OFF-- 9600 TERMINAL INTERFACEOFF OFF Off- 9600 COMPUTER INTERFACE

ADDRESS

SWITCH POS4 5 6 7 8 ADDRESS

ON ON ON ON ON 16OFF ON ON ON ON 1

ON OFF ON ON ON 2OFF OFF ON ON ON 3ON ON OFF ON ON 4OFF ON OFF ON ON 5

ON OFF OFF ON ON 6

OFF OFF OFF ON ON 7

ON ON ON OFF ON B

OFF ON ON OW ON 9

ON OrF ON OFF ON 10OFF OFF ON OFF ON 11ON ON OFF OFF ON 12OW ON OFF OW ON 13ON OFF OFF 01E ON 14OFT OFF OFF OFF ON TS

NOTE: [ NUMBERS IN BRACKETS INDICATE MILLIMETERS )

LOAD CELL

LOAD CELL 3

COMMUNICATIONS

ANDOPTIONS

1 .375

[35]

AC POWERDIA .313

[8]

MOUNTING

HOLES 4PL

8.0[203]

8.45

[2 1 4]

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25

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COVER ON

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DXP40 Instruction Manual

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