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.

saurishkr Rank: 100

Asked 1 year ago

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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)

kstoilov

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