Omron NV3Q Connection Manual page 108

Web Controller Series
PLC type Link interface
10 points (EH- CPU Unit serial
WD10DR) port
23 points (EH-
WD23DR)
9-3-2 RS-422A Connections
Connecting Using an RJ45
Connector and User-made
Cable
PLC type Link interface
10 points CPU Unit serial
(EH-WD10DR) port
23 points
(EH-WD23DR)
84
■
Connection Diagram (Socket Side of Port 1 Viewed from Front of Module)
RJ45 Connector on
Hitachi PLC
Signal
Pin No.
1
SG
2
CD
3
ER1
4
ER2
5
SD
6
RD
7
DR
8 RS
Hitachi PLC
■
Connection Diagram
Refer to the previous RJ45 Modular Port diagram for the pin numbers for the
RJ45 Connector.
RJ45 Connector on CPU
Module Port (RS-422) on
Hitachi PLC
Pin No. Signal
SG
1
-
2
-
3
SD+
4
SD−
5
RD−
6
7 RD+
8 -
Connection diagram
To power
PT
supply
Pin No.
1
2
3
4
5
6
7
8
User-made cable
Connection diagram
To power
PT
supply
Pin No.
1
2
3
4
5
6
7
Terminator setting (built-
8
in 120 Ω resistance)
Section 9-3
NV3W,
NV4W, or
NV3Q for RS-
Signal
232C
+
-
FG
SD
RD
NC
NC
SG
PT
NV3W,
NV4W, or
NV3Q for
RS-422A
Signal
+
-
FG
+SD
−SD
+RD
−RD
PT
PT