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

Appendices
A-128
CJ2 CPU Unit Hardware User’s Manual
z Examples of 1:1 Connections to RS-422A/485 Ports
3
4
1
2
5
SDA−
SDB+
RDA−
RDB+
FG
SDA
SDB
RDA
RDB
3
4
1
2
5
SDA−
SDB+
RDA−
RDB+
FG
CPU Unit
Signal
name
Signal
name
Signal
name
Signal
name
Pin
No.
Pin
No.
Terminal block
Shield
A(−)
B(+)
Terminal block
CPU Unit
Shield
Component
with
RS-422A/485
(4-wire)
RS-
422A/485
interface
RS-
422A/485
interface
Component
with
RS-422A/485
(2-wire)
RS-
422A/485
Option
Board
RS-
422A/485
Option
Board
3
4
1
2
5
SDA−
SDB+
RDA−
RDB+
FG
FG
SD
RD
RS
CS
DR
ER
SG
RS-422A
RS-232C
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
CPU Unit
Signal
name
Signal
name
Signal
name
Signal
name
NT-AL001 Link Adapter
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
D-sub, 9-pin connector
(male)
Pin
No.
Pin
No.
Pin
No.
Terminal block
Shield
Personal Computer
5-V
power
(+)
(–)
RS-232C
Interface
RS-
422A/485
Option
Board