C-1: Com Port 1 (Rs-232) Setup - AutomationDirect C0-USER-M Manual

Chapter 4: PLC Communications

C-1: Com Port 1 (RS-232) Setup

C-1
Com Port 1 has a fixed 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.
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CLICK PLC Hardware User Manual, 6th Edition, Rev. F – C0-USER-M