Connecting To The Rs-232C Port On The Cpu Unit - Omron CJ - 08-2008 Operation Manual

Connection Examples
The wiring diagrams for connecting to the RS-232C port are provided in this appendix. In actual wiring, we rec-
ommend the use of shielded twisted-pair cables and other methods to improve noise resistance. Refer to Rec-
ommended Wiring Methods later in this appendix for recommended wiring methods.
Connections to Host Computers
Note Connections to a computer running the CX-Programmer are the same as those shown here.
1:1 Connections via RS-232C Port
Note The maximum cable length for an RS-232C connection is 15 m. RS-232C communications specifica-
tions, however, do not cover transmissions at 19.2 Kbps. Refer to documentation of the device being
connected when using this baud rate.
IBM PC/AT or Compatible Computer
Appendix F
Connecting to the RS-232C Port
on the CPU Unit
RS-232C
CPU Unit
Signal
Pin
name
No.
RS-232C
interface
D-sub, 9-pin
connector (male)
RS-232C
port
Computer
Pin
Signal
name
No.
RS-232C
interface
D-sub, 9-pin
connector (male)
655