Omron CJ2 CPU UNIT - Examples of 1:N Connections to RS-422 A;485 Ports

A-129
Appendices
CJ2 CPU Unit Hardware User’s Manual
A-4 Connecting to a Serial Port on the CPU Unit
App
A-4-2 Connection Examples
z Examples of 1:N Connections to RS-422A/485 Ports
3
4
1
2
5
SDA−
SDB+
RDA−
RDB+
FG
Signal
name
Pin
No.
Terminal block
CPU Unit
Signal
name
A(−)
B(+)
Signal
name
A(−)
B(+)
RS-
422A/485
interface
Component
with
RS-422A/485
(2-wire)
RS-
422A/485
interface
Component
with
RS-422A/485
(2-wire)
RS-
422A/485
Option
Board
3
4
1
2
5
SDA−
SDB+
RDA−
RDB+
FG
B500-AL001
RS-422A
RS-422A
RS-422A
9
5
6
1
3
7
SDA
SDB
RDA
RDB
SG
FG
9
5
6
1
3
7
SDA
9
SDB
5
RDA
6
RDB
1
SG
3
FG
7
SDA
SDB
RDA
RDB
SG
FG
SDA
SDB
RDA
RDB
SDA
SDB
RDA
RDB
CPU Unit
Signal
name
Signal
name
Signal
name
Signal
name
D-sub, 9-pin connector
(male)
Pin
No.
Pin
No.
Pin
No.
Terminal block
Shield
Shield
Shield
Signal
name
Signal name
Pin No.
RS-
422A/485
interface
Component
with
RS-422A/485
(4-wire)
RS-422A
interface
RS-
422A/485
Option
Board
Component
with
RS-422A/485
(4-wire)
RS-
422A/485
interface