Infoplc Net Sitrain 13 Analog Processing

7/29/2019 Infoplc Net Sitrain 13 Analog Processing

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Date: 2/23/2012File: PRO1_13E.1

SIMATIC S7Siemens AG 2006. All rights reserved.

SITRAINTraining forAutomation and Industrial Solutions

Analog Value Processing

LevelTransmitter

High Level

Low Level


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Date: 2/23/2012File: PRO1_13E.2



Objectives

Upon completion of the module the participant will ...

... know the principle of analog value processing

... be able to assign parameters to an analog module

... be able to address an analog module

... be able to evaluate the diagnostic interrupt of an analog module


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Date: 2/23/2012File: PRO1_13E.3



Using Analog Modules

Process

Physicalquantity

Standardanalog signal

Sensor Transducer

Pressure Temperature Flow Speed pH value Viscosity etc.

500mV 1V 5V 10V 20mA4 to 20mAetc.

DAC

PQW ...PQW ...:::PQW ...

Analog output module

CPU

::::::L PIW 304

T PQW 304:

Analogactuator

Physicalquantity

..........

........................

....

MRmodule ADC

Resultmemory

PIW ...PIW ...:::PIW ...

Analog input module


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Measuring Range Modules


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Analog Module Properties

Double-click


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Analog Input Modules

SM335 (Inputs) SM331


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Analog Value Representation of Different Measuring Ranges

Range

Overflow

Overrange

Rated range

Underrange

Underflow

Meas.range 10V

Voltagesuch as:

>= 11.759

11.7589:

10.0004

10.007.50:

-7.5-10.00

- 10.0004:

- 11.759

= 22.815

22.810:

20.0005

20.00016.000

::

4.000

3.9995:

1.1852

= 1000.1

1000.0:

850.1

850.0:::

-200.0

- 200.1:

- 243.0

=352.778

352.767:

300.011

300.000225.000

::

0.000

Negativevalues

notpossible

Units

32767

32511:

27649

2764820736::

0

- 32768

- 1:

- 4864


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Analog Module Addresses for the S7-300

IM 256to

270

336to

350

352to

366

368to

382

304to

318

320to

334

272to

286

288to

302

(Send)

Slot 2 3 4 5 6 7 8 9 10 11

384

to

398

400

to

414

432

to

446

448

to

462

464

to

478

480

to

494

496

to

510

416

to

430

Rack 1

R0

Power

Supply

IM

(Receive)

PowerSupply CPU

512

to

526

528

to

542

544

to

558

560

to

574

576

to

590

592

to

606

608

to

622

624

to

638

Rack 2

IM

(Receive)

Power

Supply

Rack 3 640

to

654

656

to

670

672

to

686

688

to

702

704

to

718

720

to

734

736

to

750

752

to

766

IM

(Receive)

Power

Supply


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Scaling Analog Input Values

HI_LIM = 500.0

LO_LIM = 0.0

0 27648-27648

bipolar(M 0.0 = 1)(Sensor also supplies negative voltage)

B

27648

HI_LIM = 500.0

LO_LIM = 0.0

0

unipolar(M 0.0 = 0)(Sensor supplies only positive voltage)

A

OUT

IN IN

OUT

x x+1

x x+1


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Exercise 1: Assigning Parameters to an Analog Module


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Exercise 2: Hardware Diagnosis with Diagnostic Interrupt


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Exercise 3: Scaling an Analog Input (OB35)

AI2AI1

Weight 0 to 500kg

-15V...+15VAI1

AI2 AO1AO2

V

010

Simulator

0...10VPIW 304

AI module

0...27648

QW 6

DO module

0 to 500 kg

BCD Display

1 2 30

Weight Display

for I 0.6 = 1

Display analog value

Infoplc Net Sitrain 13 Analog Processing

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