Schneider Electric Altivar 212 manual Modbus services, Whats in this Chapter?

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Modbus services

What's in this Chapter?

This chapter contains the following topics:

Topic	Page

Principle of the Modbus protocol	32

RTU mode	32

Modbus functions available	33

Read one word (03)	33

Read indirect block (3)	34

Write Single Register (6)	36

Write multiple registers (16)	37

Write indirect block (16)	38

Read Device Identification (43/14)	40

Error response	41

S1A53844 01/2011

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Contents Altivar S1A53844 01/2011 Table of Contents Table of Contents Important Information Safety InformationAt a Glance About the BookHazard of Electric SHOCK, Explosion or ARC Flash S1A53844 01/2011 Introduction Introduction Whats in this Chapter? Hardware setupTopic Tightening torque Pin out of the Open Style Modbus connectorRJ45 Cross sectionOpen Style Reference Connection via Open Style wiring systemPin out of the RJ45 Modbus connector Pin SignalRJ45 Reference Connection via RJ45 wiring systemConnection accessories Connecting cablesProtection Against Interference PTC resistor value F646 Description of terminalsGND Hardware setup Configuration After Configuration of the communication parametersAccess to the parameters Parameters Modbus Adjustment range Default Valid AddressCommunication Configuration of the control sourceParameters Modbus Setting Control by the Modbus networkControl by the terminals, monitoring by the Modbus network Setting Default ValidParameters Parameters Modbus Setting Default Valid LI R selection Parameters Modbus Setting Default Valid AddressCom channel choice F807 Communication Menu COM submenu LI R selection F112VIA VIA Parameters LocationRemote spd ref 2 F207 Frequency sourceCommands CMOd Complete control diagramConfiguration Configuration of the indirect blocksConfiguration of the communication interruption 2129 Configure the drive behaviourParameter Modbus Setting Default Valid Address Communication detected fault 16#851Configuration Modbus services Slave address Function code Data RTU modePrinciple of the Modbus protocol Slave Slave j Slave kRead one word Modbus functions availableFunction 3, quantity = Function 3, quantity = 1 Read indirect blockStatus info Read indirect block of 2 parameters Write Single Register Function 16 = 16#10, quantity =1 Write multiple registersWrite indirect block Command word Frequency SetpointSpeed Setpoint Request 6C 7E Response Read Device Identification 43/14 Exception code Error responseModbus services Parameter list General Auto ramp AUI Disabled ManualSetting of Max frequency FH Referring to the Altivar 212 programming manualOutputs control from serial communication Commands from serial communicationList of control parameters Setpoints from serial communicationCurrent and torque List of monitoring parametersStatus Frequency and speedValues Power and energyMaintenance Trip and alarm codesCommand word FA00 CommandsBit Specifications Remarks Over-current stall level change bit Command word 2 FA20Energy reset bit ExamplesFrequency setpoint FA01 SetpointsSpeed setpoint FA13 Status word FE0I Fd01 StatusStatus word 3 FE49 Fd49 Command mode status FE45Setpoint mode status FE46 Status word 2 FE42 Fd42Alarm code FC91 Trip and alarm codesAlarm of run time FE79 Code Value Description Hexadecimal number Decimal number Bit Terminal name Function parameter title Monitoring and control of I/O from communicationDigital inputs status Fd06, FE06 Digital outputs status Fd07, FE07Analog inputs values FE35, FE36 Digital outputs command FA50Analog outputs command FA51 Damper opening commandF580 = 3 Identification Model Voltage Power Rating Code FB05 Class FB72bit8Drive model code F805 ATV212WU15N4C S1A53844 01/2011 Appendix Schematic diagram Modbus 2-wire standard schematicRS485 standard Migration For example Migration ATV21 ATV212Commissioning ATV212Modbus manualENS1A5384401 S1A53844 01/2011