Problems with Modbus TCP Write LBS.

[McKajVah]

Hi.

I'm trying to write a simple Modbus TCP Write LBS, but I always get "exception 'Exception' with message 'Modbus response error code: 3 (ILLEGAL DATA VALUE)'"
I'm using a simple ModbusMaster->writeMultipleRegister(2, 206, 3, INT) command. Tried with different values for sending and the different WORD, INT, REAL data types, but always the same problem.

Does anyone know what the problem could be?

-Kaj

[Sonnengruesser]

I'm sorry I have no answer to your question. But did you have a look at the existing LBS in the download section? There are some that use Modbus TCP already. Maybe this will help.

[463nt0ran63]

Did you find a way? Tried this myself last week and always get same error as you