Omron NV3W Connection Manual page 61

FP7 Series
Connections between the FP7 communication cassette AFP7CCM2 (RS-422 / RS-485 2ch insulated
type) and the NV-series PT (RS-422 / RS-485 types) (the case of RS-422)
PLC
FP7
Communications cable:
Loose wires
Connection diagram
FP7 AFP7CCM2 (CH1)
Pin No. Signal
CH1 + / S +SD
CH1 − / S −SD
CH1 + / R +RD
CH1 − / R −RD
− −
CH2 + / S +SD
CH2 − / S −SD
CH2 + / R +RD
CH2 − / R −RD
FP7 AFP7CCM2 (CH2)
Pin No. Signal
CH1 + / S +SD
CH1 − / S −SD
CH1 + / R
+RD
CH1 − / R −RD
− −
CH2 + / S +SD
CH2 − / S −SD
CH2 + / R +RD
CH2 − / R −RD
Set the switches on the AFP7CCM2 circuit board to RS-422.
In addition, set the internal terminator switches of AFP7CCM2 to ON.
To power
PT (RS-422A)
supply
Pin No. Signal
1
2
3
FG
4 +SD
−SD
5
6 +RD
−RD
7
8
To power
PT (RS-422A)
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
+
−
E
PT
39