TCP Modbus not working from 1.6.2 to 1.7.1

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Hello and thanks for answering.

For info, the problem I’m encountering with details is depicted in post 3928:

You say that “Problem is in the pooling proccess, not in communications libs”, can you help me please in understanding what does that mean ? Ar you sure that the .jar bindings of version 1.7.1 are correct ?

If so, no one is nowadays openhab to control any PLC via MODBUS ? :-o

Thanks again
Lorenzo