Altivar | Schneider Electric VW3 A3 303 instruction

User's manual

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Altivar 71

Modbus/Uni-Telway card Modbus protocol

VW3 A3 303

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Schneider Electric VW3 A3 303 user manual Altivar

Contents

Altivar Contents Electric shock will result in death or serious injury Before you begin Documentation structure Installation ManualProgramming Manual Communication Parameters Manual Presentation IntroductionNotation Installing the card in the drive Hardware setupReceipt Hardware description Choosing polarization Switch codingCoding the address 1234 Address Wiring recommendations Connecting to the busModbus RS485 standard Connection accessories Connection via RJ45 wiring systemConnection cables Type of master Master interface Description Catalog number Connection cables for the masterTWD XCA RJ030 TSX SCP CM Description Catalog Number Subscriber socket Connection via junction boxesRS485 double shielded twisted pair Cables TSX P ACC TSX CSA500 Communication parameters Configuration Control via Modbus in I/O profile Control CommandControl via Modbus or the terminals in I/O profile Parameter Value Comment Control via Modbus or the terminals in Drivecom profile Control via Modbus in Drivecom profile Configuration Communication scanner Example of configuration via the graphic display terminalRDY NET COM. Scanner Input COM. Fault Management Communication faults Monitored parameters CONFIG. COMM. MAPFormat Format Range Terminal display Checking the address DiagnosticsLEDs Green RUN Red ERR Meaning Corrective action Communication MAP RUN NETCOM. Scanner Input MAP COM Scan Output MAP CMD. Word Image Output variable Scanner parameter Input variable Scanner parameterCOM Scan Output MAP Card fault Communication fault Principle Modbus protocolSlave Slave j Slave k Ascii mode RTU modeModes Slave address Function code Data Read Holding/Input Registers 3/4 Modbus functions availableCode Modbus name Description Broadcast Size of data Write Single Register Diagnostics Write Multiple Registers 16 = 16#10 Get Comm Event Counter 11 = 16#0B Read/Write Multiple Registers 23 = 16#17 Machine Read Device Identification 43 = 16#2B MEI Example of positive response Input variables Logic address Default assignment Output variables Logic address Default assignmentCode Modbus name Description Size of data Parameter Logic Read Input variable address Logic address Default valueParameter Logic Parameter assigned Output controlInput monitoring Value Parameter assigned Exception responses Code Error codeResponse Logic address Parameter Value Read non-existent or protected parameters RS485 standard Appendix Master Modbus 2-wire standard schematic Modbus 4-wire standard schematic Uni-Telway schematic Type of trunk cable Cable with 1 shielded twisted pair Wire Jbus schematic Different scenarios Creating a Modbus bus using non-standard equipmentRecommendations Example Calculating the polarization Card connector pinout RS485 schematic for the cardContact no. Signal SUB-D Atv71ModbusJbusENV1 2005-05