5
29. Automationdirect PLC 5-135
Connection to PLCs
RS-422
Wiring Diagram 5
Wiring Diagram 6
V7 (CN1)
FG
+SD
−SD
+RD
−RD
1
12
13
24
25
RXD+
RXD−
PLC
CTS1+
TXD1+
TXD1−
RTS1+
RTS1−
CTS1+
9
10
11
14
16
18
19
23
SG 7
SG 7
* Use shielded twist-pair cables.
D-sub 25-pin (male)
D-sub 25-pin (male)
V7 (CN1)
FG
+SD
−SD
+RD
−RD
1
12
13
24
25
TXD3+
TXD3−
PLC
RXD3+
RXD3−
12
13
24
25
SG 7SG 7
* Use shielded twist-pair cables.
D-sub 25-pin (male)
D-sub 25-pin (male)
In case SU-6M, it is possible
to use terminal blocks,