Host Computer (Host Link Or Tool Bus); 1:1 Connections Via Rs-232C Port; Connection Example For The Host Link Serial Communications Mode; A-4-2 Connection Examples - Omron CJ2 CPU UNIT User Manual

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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.

Host Computer (Host Link or Tool Bus)

Note Connections to a computer running the CX-Programmer are the same as those shown here.

1:1 Connections via RS-232C Port

RS-232C
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

CPU Unit
Signal
Pin
name
No.
FG
1
SD
2
RD
3
RS-232C
RS
4
interface
CS
5
5V
6
DR
7
ER
8
SG
9
D-sub, 9-pin
connector (male)
Connection Example for the Peripheral Bus (Toolbus) Serial Communications Mode
CPU Unit
Signal
name
FG
SD
RD
RS-232C
RS
interface
CS
5V
DR
ER
SG
D-sub, 9-pin
connector (male)
CJ2 CPU Unit Hardware User's Manual
RS-232C
port
IBM PC/AT or compatible
Pin
Signal
No.
name
1
CD
2
RD
3
SD
4
ER
5
SG
6
DR
7
RS
8
CS
9
CI
D-sub, 9-pin
connector (female)
IBM PC/AT or compatible
Pin
Pin
No.
No.
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
D-sub, 9-pin
connector (female)
RS-232C
interface
Signal
name
CD
RD
SD
RS-232C
ER
interface
SG
DR
RS
CS
CI
Appendices
A-117

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