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11. Allen-Bradley PLC 5-79
Connection to PLCs
Wiring
Wiring diagrams with the PLC are shown below.
RS-232C
Wiring Diagram 1
Wiring Diagram 2
V7 (CN1)
D-sub 25pin(Male: )
FG
SD
RD
RS
CS
1
2
3
4
5
TXD
RXD
PLC
D-sub 15pin(Male: )
RTS
CTS
2
3
4
5
6
7SG DSR
SG 7
8
11
13
DCD
DTR
SG
* Use shielded twist-pair cables.
D-sub 25-pin (male)
D-sub 15-pin (male)
D-sub 25pin(Female: )
V7 (CN1)
D-sub 25pin(Male: )
FG
SD
RD
RS
CS
1
2
3
4
5
TXD
RXD
PLC
RTS
CTS
2
3
4
5
6
DSR
SG 7
8
20
DCD
DTR
SG 7
* Use shielded twist-pair cables.
D-sub 25-pin (male)
D-sub 25-pin (female)