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Is it possible to give Start/Stop commands from PLC via Modbus Port on LUCM module of TeSys U.

FA12187

23 January 2021

You can connect the Modbus port of LUCM module (Multi Functional Control Unit) of TeSys U controller with PLC in order to access all the registers, except the registers from 680 to 705. To access these registers for write function, you need a communication module depending on the protocol.

Therefore the command registers (like Start/Stop) 700,703,704,705 cannot be accessed for writing by the PLC via LUCM Modbus port. However, you can read and monitor the values of Tesys U controller.