11 Programming Devices and Communications
11-28
CJ2 CPU Unit Software User’s Manual
*1 A Serial Option Board can be mounted to enable RS-232C or RS-422A/485 communications.
*2 Supported for Serial Communications Units with unit version 1.2 or later only. For CPU Units, however, only
automatic conversion to CompoWay/F is possible for the Serial Gateway protocol.
Unit/Protocol Compatibility
Unit Model Port
Protocol (serial communications mode)
Periph-
eral bus
(toolbus)
Host Link
(except
for CX-
One)
No-protocol
communica-
tions
Protocol
macro
NT Link
(1:N
Mode)
Serial
Gate-
way
*2
Serial
PLC
Link
*1
CPU Units CJ2H-CPU68(-EIP)
CJ2H-CPU67(-EIP)
CJ2H-CPU66(-EIP)
CJ2H-CPU65(-EIP)
CJ2H-CPU64(-EIP)
RS-232C Yes Yes Yes --- Yes Yes No
CJ2M-CPU35
CJ2M-CPU34
CJ2M-CPU33
CJ2M-CPU32
CJ2M-CPU31
RS-232C or
RS-
422A/485
*1
Ye s Ye s Ye s - - - Ye s Ye s Ye s
CJ2M-CPU15
CJ2M-CPU14
CJ2M-CPU13
CJ2M-CPU12
CJ2M-CPU11
RS-232C Yes Yes Yes --- Yes Yes Yes
Serial Com-
munications
Unit
CJ1W-SCU41-V1
CJ1W-SCU31-V1
CJ1W-SCU21-V1
CJ1W-SCU22
CJ1W-SCU32
CJ1W-SCU42
RS422/485 --- Yes
Ye s
*2
YesYesYesNo
RS-232C --- Yes
Ye s
*2
YesYesYesNo