Schneider Electric VW3 A3 303 user manual Contents

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Contents

1.Before you begin___________________________________________________________________________________________ 3

2.Documentation structure_____________________________________________________________________________________ 4

3.Introduction _______________________________________________________________________________________________ 5

3.1. Presentation _________________________________________________________________________________________ 5

3.2. Notation ____________________________________________________________________________________________ 5

4.Hardware setup ___________________________________________________________________________________________ 6

4.1. Receipt _____________________________________________________________________________________________ 6

4.2. Hardware description __________________________________________________________________________________ 6

4.3. Installing the card in the drive ____________________________________________________________________________ 6

4.4. Switch coding ________________________________________________________________________________________ 7

5.Connecting to the bus_______________________________________________________________________________________ 9

5.1. Wiring recommendations _______________________________________________________________________________ 9

5.2. Modbus RS485 standard _______________________________________________________________________________ 9

5.3. Connection via RJ45 wiring system ______________________________________________________________________ 10

5.4. Connection via junction boxes __________________________________________________________________________ 12

6.Configuration ____________________________________________________________________________________________ 14

6.1. Communication parameters ____________________________________________________________________________ 14

6.2. Control - Command __________________________________________________________________________________ 15

6.3. Communication scanner _______________________________________________________________________________ 18

6.4. Communication faults _________________________________________________________________________________ 19

6.5. Monitored parameters_________________________________________________________________________________ 20

7.Diagnostics ______________________________________________________________________________________________ 21

7.1. Checking the address _________________________________________________________________________________ 21

7.2. LEDs ______________________________________________________________________________________________ 21

7.3. Control - Command __________________________________________________________________________________ 22

7.4. Communication scanner _______________________________________________________________________________ 23

7.5. Communication fault __________________________________________________________________________________ 24

7.6. Card fault __________________________________________________________________________________________ 24

8.Modbus protocol __________________________________________________________________________________________ 25

8.1. Principle ___________________________________________________________________________________________ 25

8.2. Modes _____________________________________________________________________________________________ 26

8.3. Modbus functions available ____________________________________________________________________________ 27

8.4. Read Holding/Input Registers (3/4) ______________________________________________________________________ 27

8.5. Write Single Register (6)_______________________________________________________________________________ 28

8.6. Diagnostics (8) ______________________________________________________________________________________ 29

8.7. Get Comm Event Counter (11 = 16#0B) __________________________________________________________________ 30

8.8. Write Multiple Registers (16 = 16#10) ____________________________________________________________________ 30

8.9. Read/Write Multiple Registers (23 = 16#17)________________________________________________________________ 31

8.10. Read Device Identification (43 = 16#2B) _________________________________________________________________ 32

8.11. Communication scanner ______________________________________________________________________________ 34

8.12. Exception responses ________________________________________________________________________________ 37

8.13. Read non-existent or protected parameters _______________________________________________________________ 38

9.Appendix________________________________________________________________________________________________ 39

9.1. RS485 standard _____________________________________________________________________________________ 39

9.2. Modbus 2-wire standard schematic ______________________________________________________________________ 40

9.3. Modbus 4-wire standard schematic ______________________________________________________________________ 41

9.4. Uni-Telway schematic_________________________________________________________________________________ 42

9.5. 2-wire Jbus schematic ________________________________________________________________________________ 43

9.6. Creating a Modbus bus using non-standard equipment _______________________________________________________ 44

9.7. RS485 schematic for the card __________________________________________________________________________ 46

9.8. Card connector pinout ________________________________________________________________________________ 46

While every precaution has been taken in the preparation of this document, Schneider Electric SA assumes no liability for any omissions or errors it may contain, nor for any damages resulting from the application or use of the information herein.

The products and options described in this document may be changed or modified at any time, either from a technical point of view or in the way they are operated. Their description can in no way be considered contractual.

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Contents Altivar Contents Before you begin Electric shock will result in death or serious injuryProgramming Manual Installation ManualDocumentation structure Communication Parameters ManualNotation IntroductionPresentation Receipt Hardware setupInstalling the card in the drive Hardware descriptionCoding the address Switch codingChoosing polarization Address 1234Modbus RS485 standard Connecting to the busWiring recommendations Connection cables Connection via RJ45 wiring systemConnection accessories TWD XCA RJ030 Connection cables for the masterType of master Master interface Description Catalog number TSX SCP CMRS485 double shielded twisted pair Connection via junction boxesDescription Catalog Number Subscriber socket CablesTSX CSA500 TSX P ACCConfiguration Communication parametersControl via Modbus or the terminals in I/O profile Control CommandControl via Modbus in I/O profile Parameter Value CommentControl via Modbus in Drivecom profile Control via Modbus or the terminals in Drivecom profileConfiguration RDY NET Example of configuration via the graphic display terminalCommunication scanner COM. Scanner InputCommunication faults COM. Fault ManagementFormat CONFIG. COMM. MAPMonitored parameters Format Range Terminal displayLEDs DiagnosticsChecking the address Green RUN Red ERR Meaning Corrective actionCOM. Scanner Input MAP RUN NETCommunication MAP COM Scan Output MAP CMD. Word ImageCOM Scan Output MAP Input variable Scanner parameterOutput variable Scanner parameter Communication fault Card faultSlave Slave j Slave k Modbus protocolPrinciple Modes RTU modeAscii mode Slave address Function code DataCode Modbus name Description Broadcast Size of data Modbus functions availableRead Holding/Input Registers 3/4 Write Single Register Diagnostics Get Comm Event Counter 11 = 16#0B Write Multiple Registers 16 = 16#10Read/Write Multiple Registers 23 = 16#17 Read Device Identification 43 = 16#2B MachineExample of positive response MEICode Modbus name Description Size of data Output variables Logic address Default assignmentInput variables Logic address Default assignment Parameter Logic Input variable address Logic address Default valueParameter Logic Read Input monitoring Output controlParameter assigned Value Parameter assignedResponse Code Error codeException responses Read non-existent or protected parameters Logic address Parameter ValueAppendix RS485 standardModbus 2-wire standard schematic MasterModbus 4-wire standard schematic Uni-Telway schematic Wire Jbus schematic Type of trunk cable Cable with 1 shielded twisted pairRecommendations Creating a Modbus bus using non-standard equipmentDifferent scenarios Calculating the polarization ExampleContact no. Signal RS485 schematic for the cardCard connector pinout SUB-DAtv71ModbusJbusENV1 2005-05
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