Omron CP1E-E14SDR-A - Page 256

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