Function Blocks For MODBUS Communication With The 3G3MV and V7.
Function blocks for modbus communication through serial cards (SCU and SCB) and the serial of PLC CP1. Some FBs are specific for use with Inverter V7 and 3G3MV. The read/write parameter FB can be used on any device. The FB for inverters can be used on all the inverters that have a a similar Modbus registries structure to that of the V7.
NEW V1.1 This new version supports PLC CP1 and the inner board cards (SCB) of the CS1.
Download the zip file for function block source from the attachment
1. Generic writing in Modbus with command 10H
NOTE: Set up the timeout of the serial gateway to 2000 milliseconds or less.