Omron CJ2 CPU UNIT - Examples of 1:N Connections to RS-232 C Ports

A-127
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-232C Ports
*1 We recommend using the following NT-AL001 Link Adapter Connecting Cables to connect to NT-AL001 Link
Adapters.
NT-AL001 Connecting Cables: XW2Z-070T-1 (0.7 m)
XW2Z-200T-1 (2 m)
RS-422A
RS-232C
1
2
3
4
5
6
7
8
9
NC
SD
RD
RS
CS
5V
DR
ER
SG
1
2
3
4
5
6
7
8
RS-422RS-232
GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA
SDA
SDB
RDA
RDB
SDA
SDB
RDA
RDB
1
2
3
4
5
6
7
8
9
FG
SD
RD
RS
CS
5V
DR
ER
SG
Shield
CPU Unit
Signal
name
Signal
name
Signal
name
Signal
name
Signal
name
NT-AL001 Link Adapter
D-sub, 9-pin
connector (male)
DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF (4-wire)
Pin 5: OFF
Pin 6: OFF
D-sub, 9-pin connector
(male)
*1
Pin
No.
Pin
No.
Pin
No.
Terminal block
Shield
RS-232C
Option
Board
Component
with
RS-422A/485
(4-wire)
RS-
422A/485
interface
RS-
422A/485
interface
Component
with
RS-422A/485
(4-wire)
1
2
3
4
5
6
7
8
9
NC
SD
RD
RS
CS
5V
DR
ER
SG
1
2
3
4
5
6
7
8
RS-422RS-232
GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA
1
2
3
4
5
6
7
8
9
FG
SD
RD
RS
CS
5V
DR
ER
SG
CPU Unit
Signal
name
Signal
name
Signal
name
Signal
name
Signal
name
NT-AL001 Link Adapter
D-sub, 9-pin
connector (male)
D-sub, 9-pin connector
(male)
*1
Pin
No.
Pin
No.
Pin
No.
Terminal block
Shield
A(−)
B(+)
A(−)
B(+)
DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: ON (2-wire)
Pin 4: ON (2-wire)
Pin 5: OFF
Pin 6: ON
RS-232C
Option
Board
Component
with
RS-422A/485
(2-wire)
RS-
422A/485
interface
RS-
422A/485
interface
Component
with
RS-422A/485
(2-wire)