Allow slave=0 in serial communication.

pymodbus-dev / pymodbus

A full modbus protocol written in python

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Closed janiversen closed 4 months ago

janiversen commented 4 months ago

For a longer time slave=0 have caused different problems....

thanks to the nicely prepared issue #2019, the bug was found, thanks !

The RTU_FRAMER sets transaction_id = slave_id, which is correct EXCEPT for slave=0

fixes #2019