Omron NV3Q Connection Manual page 100

EH-150/EHV Series
Using the EH-SIO Unit and
Connecting with a User-
made Cable
CPU Link interface
EH-CPU104A Port 2 on EH-SIO
EH-CPU208A RS-422A/485
connector
EH-CPU316A
EH-CPU516
EH-CPU548
EHV-CPU128
EHV-CPU64
EHV-CPU32
EHV-CPU16
9-1-3 RS-485 Connections
RS-485 Connections
CPU Link interface
EH-CPU104A Port 1 on CPU
Module
EH-CPU208A
EH-CPU316A
EH-CPU516
EH-CPU548
EHV-CPU128 CPU Unit serial
port
EHV-CPU64
EHV-CPU32
EHV-CPU16
76
EH-S10
Uint
Hitachi PLC
■
Connection Diagram
RS-422/485 Connector
on CPU Module Port
(RS-422) on Hitachi PLC
Pin No. Signal
SD+
1
SD−
2
3 RD+
RD−
4
TERM
5
SG
6
Note Settings depend on the port and communications method. Check
the communications settings given previously.
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-485) on
Hitachi PLC
Signal
Pin No.
SG
1
-
2
-
3
SD+
4
SD−
5
RD−
6
7
RD+
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)
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 9-1
PT
NV3W,
NV4W, or
NV3Q for RS-
422A
Signal
+
-
NV3W,
FG
NV4W, or
+SD
NV3Q for RS-
−SD
422A
+RD
−RD
PT
PT
NV3W, NV4W,
or NV3Q for
RS-485
Signal
+
-
NV3W, NV4W,
FG
or NV3Q for
+SD
RS-485
−SD
+RD
−RD
PT