PM564 COM1 Pin details for RS485 2 wire modbus connection
Hi,
I wish to connect a modbus RS485 serial device to COM1 port of PM564 PLC. Which pins are to be used to achieve this.
Asked 1 year ago
Answers
1
Hi,
In the help, look for PM56x - there is connection diagram for COM ports.
COM1 with RS485:
3= Rx/Tx-P
8= Rx/Tx-N
1= FE functional earth (if you need it)
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