I am having PLC S7 200 smart model- ST 30 .
In which I am getting problem in modbus communication of PLC and VFD via built in RS 485 port of PLC.
PLC is not able to communicate also PLC RS 485 port is heating during communication. What could be the possible reason of this problem and what can I do?
In which I am getting problem in modbus communication of PLC and VFD via built in RS 485 port of PLC.
PLC is not able to communicate also PLC RS 485 port is heating during communication. What could be the possible reason of this problem and what can I do?