Omron CJ Series Connection Manual page 10

Precautions for Correct Use
Turn ON the terminating resistance switch on Serial Communications Unit and connect
terminating resistance of between 100 and 125Ω (1/2W) to the terminals of Driver at either
end of the RS-422A/485 transmission path.
Enable the built-in terminating resistor of Driver that has a resistance of 120Ω.
Additional Information
For information on the serial cable (RS-485), refer to 3-4 RS-232C and RS-422A/485 Wiring
of the CJ Series Serial Communications Units OPERATION MANUAL (Cat. No. W336).
Additional Information
For specifications of 24 VDC power supply available for Driver, refer to Brushless Motor and
Driver Package BLE Series FLEX RS-485 communication type USER MANUAL (HM-5140).
Additional Information
The system configuration in this document uses USB for the connection between Personal
computer and PLC. For information on how to install the USB driver, refer to A-5 Installing the
USB Driver in Appendices of the CJ-series CJ2 CPU Unit Hardware USER'S MANUAL (Cat.
No. W472).
Additional Information
The system configuration in this document uses the communication cable (CC05IF-USB) for
the connection between Personal computer and Driver. For information on how to install the
device driver for communication cable, refer to Installation of the Data setting software
MEXE02 INSTALLATION MANUAL (HM-40107).
5．Applicable Devices and Device Configuration
7