Omron NX1P2 series

5 - 69
5 Installation and Wiring
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
5-4 Wiring
5
5-4-11 Wiring the NX1W-CIF11/-CIF12 Serial Communications Option Board
 Wiring Example: 1:1 Connections
a) Two-wire Connections
b) Four-wire Connections
SDA -
SDB +
RDA -
RDB +
SHLD
3
4
1
2
5
FG
A(–)
B(+)
RS-422A/485 Option Board
Pin Signal
Signal
Shield
Remote device
Ground the shield at one end
when using NX1W-CIF12.
SDA-
SDB+
RDA-
RDB+
SHLD
3
4
1
2
5
RDA
RDB
SDA
SDB
FG
RS-422A/485 Option Board
Pin Signal Signal
Shield
Remote device
Ground the shield at one end
when using NX1W-CIF12.