C-1: Com Port 1 (RS-232) Setup
Com Port 1 has a ο¬xed setup as shown below. This com port works as a Modbus RTU slave
only. If you want to connect an external device to this com port, please make sure the external
device can be a Modbus RTU master and that the com port setup matches the following setup.
C-1
CLICK PLC Hardware User Manual, 6th Edition, Rev. F β C0-USER-M
4β20
Chapter 4: PLC Communications