Connections - Omron NV3W Connection Manual

FP7 Series
2-7-3 RS-485 connections
Connections between the FP7 communication cassette AFP7CCM1 (RS-422 / RS-485 1ch insulated
type) and the NV-series PT (RS-422 / RS-485 types) (the case of RS-485)
• 1:1 connections
PLC
FP7
Communications cable:
Loose wires
40
Connection diagram
FP7 AFP7CCM1
Pin No. Signal
+ / S +
- / S -
+ / R
+
- / R
-
Set the switches on the AFP7CCM1 circuit board to RS-485.
In addition, set the internal terminator switch of AFP7CCM1 to ON.
To power
PT (RS-485)
supply
Pin No. Signal
1
2
3
FG
4 +SD
-SD
5
6 +RD
-RD
7
8
Section 2-7
NV3W-V1, NV4W,
or NV3Q for
RS-232C
+
-
E
PT