Schneider Electric Altivar 212

Modbus services

42 S1A53844 01/2011

Contents

Main Page Table of Contents Page Safety Information Important Information About the Book At a Glance Page Page Introduction Page Hardware setup Pin out of the Open Style Modbus connector Connection via Open Style wiring system Open Style Reference 8........................1 Pin out of the RJ45 Modbus connector Connection via RJ45 wiring system Connecting cables RJ45 Reference Connection accessories Protection Against Interference Description of terminals Page Page Configuration Configuration of the communication parameters Configuration of the control source Modbus Modbus Modbus Page LOC REM Modbus commands Modbus setpoint Page Complete control diagram Terminals Setpoint F207 Operation panel Logic input R [LI R selection] F112 set to 38 [Frequency source] or F200 [Auto/man speed ref] Configuration of the indirect blocks Configuration of the communication interruption Page Page Modbus services Principle of the Modbus protocol RTU mode Modbus functions available Read one word (03) Read indirect block (3) Page Write Single Register (6) Write multiple registers (16) Write indirect block (16) Page Read Device Identification (43/14) Function 43/14 = 16#2B/0E Request: Response: Error response: Refer to "Error response", page41. Error response Function code: request code + H80. Exception code: Slave no. Function code Exception code CRC16 Lo Hi 1 byte 1 byte 1 byte 2 bytes Page Parameter list Referring to the Altivar 212 programming manual List of control parameters Outputs control from serial communication Setpoints from serial communication List of monitoring parameters Page Commands Page Setpoints Status Page Trip and alarm codes Alarm code (FC91) Alarm of run time (FE79) Page Monitoring and control of I/O from communication Page Page Identification drive model code (F805) Page Page Page RS485 standard Modbus 2-wire standard schematic Page Migration ATV21 - ATV212