Connecting To The Tool Port; Connecting Through An Adapter - Omron NV3W Connection Manual

MELSEC-FX2N/FX3U/FX3UC Series
1-2-1

Connecting to the Tool Port

For RS-422A
CPU Interface
FX2N Tool port
Mitsubishi PLC tool port
FX3U on PLC
FX3UC
1-2-2

Connecting through an Adapter

For RS-232C
CPU Adapter
FX2N FIN-232-
Mitsubishi PLC Adapter
BD
FX3U FX3U-232-
BD
FX3UC
FX3U-232-
ADP
Note
Connection diagram
To power
supply
Signal
Pin No.
−RD
1
+RD
2
SG
3
−SD
4
+5V
5
-
6
7 +SD
8 -
Connection diagram
To power
supply
Signal
Pin No.
1 CD
2 RD
3
SD
4 ER
5 SG
6 DR
7
-
8
-
9
-
The NV3W model for RS-442A cannot communicate with an FX-series PLC
through an RS-422A or RS-485 Adapter.
PT
Pin No. Signal
+
1
−
2
3 FG
+SD
4
−SD
5
+RD
6
−RD
7
Terminator setting (built-
8
in 120 Ω resistance)
PT
Pin No. Signal
1 +
−
2
3
FG
4 SD
5 RD
6 NC
7 NC
8 SG
Section 1-2
PT
NV3W(-V1),
NV4W, or
NV3Q for RS-
422A with 24-
VDC power
PT
NV3W(-V1),
NV4W, or
NV3Q for RS-
232C with 24-
VDC power
5