Omron CJ2 CPU UNIT - 1:1 Connections Via RS-232 C Port; A-4-2 Connection Examples; Connection Example for the Host Link Serial Communications Mode; Host Computer (Host Link or Tool Bus)

A-117
Appendices
CJ2 CPU Unit Hardware User’s Manual
A-4 Connecting to a Serial Port on the CPU Unit
App
A-4-2 Connection Examples
This section provides connection examples and corresponding connection diagrams.
Refer to A-4-3 Applicable Connectors and Recommended Cables for actual wiring methods.
Note Connections to a computer running the CX-Programmer are the same as those shown here.
z 1:1 Connections via RS-232C Port
Note The maximum cable length for an RS-232C connection is 15 m. RS-232C communications specifications,
however, do not cover transmissions at 19.2 Kbps. Refer to documentation of the device being connected
when using this baud rate.
Connection Example for the Host Link Serial Communications Mode
Connection Example for the Peripheral Bus (Toolbus) Serial Communications Mode
A-4-2 Connection Examples
Host Computer (Host Link or Tool Bus)
RS-232C
RS-232C
port
1
2
3
4
5
6
7
8
9
CD
RD
SD
ER
SG
DR
RS
CS
CI
1
2
3
4
5
6
7
8
9
FG
SD
RD
RS
CS
5V
DR
ER
SG
CPU Unit
IBM PC/AT or compatible
RS-232C
interface
Signal
name
Signal
name
RS-232C
interface
D-sub, 9-pin
connector (male)
D-sub, 9-pin
connector (female)
Pin
No.
Pin
No.
CPU Unit
RS-232C
interface
Signal
name
Signal
name
RS-232C
interface
D-sub, 9-pin
connector (male)
D-sub, 9-pin
connector (female)
Pin
No.
Pin
No.
1
2
3
4
5
6
7
8
9
CD
RD
SD
ER
SG
DR
RS
CS
CI
1
2
3
4
5
6
7
8
9
FG
SD
RD
RS
CS
5V
DR
ER
SG
IBM PC/AT or compatible