Plc Setup - Omron CJ Series Connection Manual

7.3. PLC Setup

Set up PLC.
7.3.1. Hardware Settings
Set the hardware switches on Serial Communications Unit and connect the cables.
Precautions for Correct Use
Make sure that the power supply is OFF when you set up.
1
Make sure that PLC is powered
OFF.
*If it is ON, the settings described
in the following steps and
subsequent procedures may not
be applicable.
2
Check the positions of the
hardware switches and Port 2 on
the front of Serial Communications
Unit by referring to the figure on
the right.
3
Set Unit number switch to 0.
*The unit number is set to 0 as the
factory default setting.
4
Connect Serial Communications
Unit to PLC as shown on the right.
Connect Port 2 on Serial
Communications Unit and Sensor
Controller with the RS-232C cable
(for PLC or programmable
terminal).
Connect Personal computer to
PLC with a USB cable.
7．Serial Communications Connection Procedure
Personal
computer
PLC
USB cable
Power Supply Unit CPU Unit
Serial Communications Unit
End Cover
RS-232C cable (for PLC or
programmable terminal)
Sensor Controller
20