Omron CJ2 CPU UNIT SOFTWARE User Manual page 56

1 Overview
Add a Serial Option Board (CJ2M-CPU3@ Only)
With the CJ2M-CPU3@, one Serial Communications Option Board with one RS-232C port or one RS-
422A/485 port can be added.
With the serial port, it is easy to connect to general components, such as barcode readers, and other
components such as PTs, other CJ/CP-series PLCs, and Inverters.
Example: NS-series PT
CJ2M-CPU3@
RS-232C
NT Link or
other protocol
1-10
COMM
EtherNet/IP
RS-232C
Barcode reader or other
general-purpose component
Or RS-422A/485
Example: Serial PLC Links
Serial Option Boards
CP1W-CIF01 CP1W-CIF12
COMM
COMM
RDA- RDB + SDA- SDB + FG
RS-232C
RS-422A/485 port
(isolated, max. transmission
distance: 500 m)
CJ2M, CP1E, CP1L, or CJ1M
CJ2 CPU Unit Software User's Manual
CP1W-CIF11
COMM
RDA- RDB + SDA- SDB + FG
RS-422A/485 port
(not isolated, max.
transmission distance: 50 m)