Omron CP1E-E14SDR-A User Manual page 256

Connecting RS-422A/485 Ports 1:1 with 2-wire Connections
• Communications Mode: No-protocol
N/NA -type CPU Unit
CP1E N/NA -type CPU Unit
Signal
SDA-
RS-422A/485
SDB+
Option Board
RDA-
RDB+
FG
Terminal block
N S1-type CPU Unit
CP1E N S1-type CPU Unit
Signal
Built-in
RS-485 Port
Terminal block
Connecting RS-422A/485 Ports 1:1 with 4-wire Connections
• Communications Mode: No-protocol
CP1E N/NA -type CPU Unit
Signal
SDA-
RS-422A/485
Option Board SDB+
RDA-
RDB+
FG
Terminal block
4-wire
Terminating
resistance:
ON
CP1E CPU Unit Hardware User's Manual(W479)
Device supporting
RS-422A/485
communications (2-wire)
Signal
Pin
RS-422A/485
A(-) interface
3
B(+)
4
1
2
5
Device supporting
RS-422A/485
communications (2-wire)
Signal
RS-422A/485
A(-)
A- interface
B(+)
B+
FG
Pin
3
4
1
2
5
Pin
1
2
3
4
5
6
7
Shield
8
RS-422
Terminal block
DIP SW
SW1-1: ON
SW1-2: ON(Terminating resistance)
SW1-3: OFF
SW1-4: OFF
SW1-5: OFF
SW1-6: ON
Device supporting RS-422A/485
communications
Device supporting
RS-422A/485
communications
NT-AL001
Signal Signal Pin Signal
RS-232C
GRD NC 1 FG
SG SD 2 SD
SDB RD 3 RD
SDA RS 4 RS
RDB CS 5 CS
RDA 5V 6
CSB DR 7 DR
CSA ER 8 ER
SG
SG 9
RS-232
(+)5V
D-sub, 9-pin
(−)Power
connector (male)
Appendices
Signal
RDA
RS-422A/485
interface
RDB
SDA
SDB
RS-232C
interface
A-35