Introduction to SIMATIC PDM And How to connect to a LR200 Radar via HART
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Transcript of Introduction to SIMATIC PDM And How to connect to a LR200 Radar via HART
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Introduction to SIMATIC PDM And How to connect to a LR200 Radar via HART
Agenda:
- Overview of PDM - Example of how to connect to a LR200
The objective of this web seminar is to give the viewer anidea of what PDM is and how to use it to communicate to a LR200 Radar unit via HART communications.
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What is PDM?
Stands for Process Device Manager
A configuration tool Used for:- Commissioning field devices- Maintenance of field devices- Diagnosing field devices- Display field devices
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SIMATIC PDMA new, standardized approach
One piece of software for standardized operation of all field devices
Device Descriptions (DD)
Now Before PDM
Different programs for operation of the associated field devices and components
SIMATIC PDM for
operation of all field devices and components
based on EDD technology
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DD
Proper name is EDD = Electronic Device Descriptor
Describes:
All the parameters in the device
All the interactions between parameters in the device
How to read/write those parameters over the communication bus
Describes simple methods for performing functions (ie set address, quick start etc.)
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Electronic Device Descriptor Language EDDL
is a standard for Hart, PROFIBUS and Foundation Fieldbus (OPEN)
Stores information as a text file, therefore it is independent on PC operating system
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PDM is a DD interpreter
DD = Device Description
HART - device
HART - Device Description+
SIMATICPDM
Hand heldCommunicator
275
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SIMATIC PDMVersatile communication
Communication with PROFIBUS field devices
on PROFIBUS-DP on PROFIBUS-PA
via PA coupler or via PA link
HART field devices via SIMATIC ET200M remote I/O via SIMATIC ET200iS remote I/O via HART modem via HART multiplexer
Company-specific field devices on SIPART bus via isolated coupling to SIREC recorders
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CommunicationPROFIBUS
PROFIBUS DP
PROFIBUS PA
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CommunicationHART on PROFIBUS
PROFIBUS DP
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CommunicationHART via multiplexer
PROFIBUS DP
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CommunicationHART via HART modem
PROFIBUS DP
In the workshop
M
M
M M
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Communicationover Ethernet
Ethernet / Fast Ethernet
PROFIBUS DP
IE/PB LinkS7- 400
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SIMATIC PDM - Connection points in the automation system
Ethernet
Operator Station OS (e.g. Win CC)
RS232/ RS485
Engineering Station ES
.... .... ....
HART multiplexer / interface
Any device with any communication on the workbench
Possible SIMATIC PDM connection point
PROFIBUS PA
PROFIBUS DP
PROFIBUS DP 45.45 kBit/s
PROFIBUS PA
S7- 400H S7- 400 S7- 300
redundant
ET 200M DP/PA link ET 200iS
PROFIBUS DP
IE/PB Link
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A word about HART Protocol
Highway Addressable Remote Transducer Based on Bell 202 Frequency shift keying to superimpose
digital signal on top of a 4-20 mA signal Open standard (www.hartcomm.org)
Designed to: Replace 4-20 mA Remote configuration Remote diagnostics Can be multi-dropped (up to 15)
Analog and digital communications Analog is fast (continuous) Digital is slow - 1200 bits/sec (i.e. 2-3 updates/sec)
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HART devices on PROFIBUS DP networks
Use a ET200M remote I/O rack
Advantages:- Have ‘best in class’- Over 90% of fieldbus devices sold are HART- This solution is part of Totally IntegratedAutomation (TIA)- PDM will work fine- Main process variable is updated just as fast as PROFIBUS PA- HART can be Cheaper!
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HART on PROFIBUS - COSTS
PROFIBUS PA wire is 2.45 Euro/meterHART wire is 1.42 Euro/meter
Description:# of Devices 1 2 3 4 5 6 7 8 9 10PROFIBUS PA power 130 130 130 130 130 130 130 130 130 130link 496 496 496 496 496 496 496 496 496 496coupler 736 736 736 736 736 736 736 736 736 736PROFIBUS adder 256 512 768 1024 1280 1536 1792 2048 2304 2560total: 1618 1874 2130 2386 2642 2898 3154 3410 3666 3922
HARTpower 130 130 130 130 130 130 130 130 130 130ET200 326 326 326 326 326 326 326 326 326 326HART input card 302 302 604 604 906 906 1208 1208 1600 1600HART adder 0 0 0 0 0 0 0 0 0 0Total 758 758 1060 1060 1362 1362 1664 1664 2056 2056
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HART on PROFIBUS
Installation costs can remove the Hardware savings
Some installations, HART is cheaper
Some installations, PROFIBUS PA is cheaper
Point to Remember: YOU CAN CONNECT ANY HART DEVICE TO PROFIBUS
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HART Commands
HART commands are divided up into three types:Universal commandsCommon practice commandsDevice specific commands
You can connect to a HART device by:1. Using a ‘Generic’ DD that will give you just the
Universal commands and Common practice commands but not the Device specific commands
2. Using a DD that has been written for the device that will give you access to all the commands
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PDM uses HCF Library
This means:- PDM can connect to any HART device using a ‘Generic’ DD
- PDM can connect to any HART device using the device specific DD in the HCF Library
- PDM can connect to many devices that havehad a special DD written for it for PDM
All Siemens-Milltronics equipment that has HART can connect to PDM in all three way!
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HART Communicator 275 (Emerson)
Does not have all the HART Library in it (Library is too big)
HART Communicator 275 costs approx. 3000 Euro
PDM cost approx. 400 Euro for base unit
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AMS software (Emerson)
Competes with PDM
Works with HART and Foundation Fieldbus
Has some nice features
However:- AMS software not support straight use of the HCFlibrary - AMS software can connect to any device but only with Universal commands and the common
practice commands.- This is not enough to configure devices!
Device has to be made ‘AMSaware’ to use all HART commands
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SIMATIC PDMVariants
Stand alone Local installation
Local connection to the field bus, service bus or electric circuit
Local database with export option in XML
Integrated into SIMATIC Integrated in hardware
project
System-wide commu-nication (routing)
Optimum integration into SIMATIC S7 /PCS 7
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SIMATIC PDMUser interface (1) SIMATIC PDM has
Standardized displays and user interface Terminology and linguistics based on DIN V 19259 and
IEC 65/349/CD, and conforms to VDI/VDA GMA 2187 is Windows-compatible
Views of process devices Process devices – Network view Process devices – System view with status information Hardware project (integrated into SIMATIC S7 /PCS 7)
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SIMATIC PDMUser interface (2)
Documentation Online help and Getting
Started
Status of parameter values loaded, modified, invalid,
initial value, not supported
Automatic assignment: Device – Parameter data records
User interface in German English French Spanish Italian
Offline parameterization possible including consistency check
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SIMATIC PDMUser interface (3)
Parameterization / comparison Online with offline Device with device
Presentation of process values Curves Bar chart
Device diagnostics Status Quality
Commissioning aids Calibration Alignment Adjustment
Identification Bus scan (life list) Device identification HART multiplexer scan
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Ordering Information - PDM
Catalog sheet is on the web at www.fielddevices.comLinks to the product page on our websiteDifferent options available:
- Integrated into PCS7- Routing via S7-400- Hart Multiplexer
Base Software Gives you:- up to 4 tags per project (unlimited # of projects)- communications via HART modem- communications via RS232- communications via Profibus DP/PA
Siemens Internal use version (6ES7 658-3GA05-0YC0):- only for Siemens people and distributors - base software (100 EURO for two licenses)- pop up with ‘For Siemens internal use only’
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HART Modems
RS-232 to HART Modem (7MF49971DA) - made by MACTek
USB to HART Modem (ordered from MACTek)
MACTek can be found at www.mactekcorp.com
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ExampleLR200 HART connection
PLCRB
+
-
HART Modem
PC
HART Device
If the PLC internal resistance is < 250 ohms, then RB of 250 to 350 ohms needs to be added.
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ExampleLR200 HART connection
Live demonstation