Connections To Rs-232C Ports; Connection Example - Omron CJ2 CPU UNIT User Manual

Cj2 cpu unit hardware
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Connections to RS-232C Ports

RS-232C can also be used to connect two CJ2M CPU Units with a Serial PLC Link.
CJ2M CPU Unit
RS-232C Option Board
Signal name
FG
SD
RD
RS
CS
5V
DR
ER
SG

Connection Example

CJ2M CPU Unit (Polling Unit)
RS-232C Option Board
CP1W-CIF01
CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: OFF (no RS control for SD)
RS-422A/485 interface
Pin
No.
CJ2M CPU Unit (Polling Unit)
RS-232C Option Board
CP1W-CIF01
CP1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)
RS-422A/485 interface
Pin
1
2
No.
CJ2 CPU Unit Hardware User's Manual
Pin No.
1
2
3
4
5
6
7
8
9
CJ2M CPU Unit (Polled Unit 0)
RS-422A/485 Option Board
CP1W-CIF11/CIF12
DIP SW
SW1: ON (terminating resistance OFF)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)
RS-422A/485 interface
Pin
No.
CJ2M CPU Unit (Polled Unit 0)
RS-422A/485 Option Board
CP1W-CIF11/CIF12
DIP SW
SW1: OFF (terminating resistance OFF)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)
RS-422A/485 interface
Pin
3
4
5
1
2
No.
CJ2M CPU Unit
RS-232C Option Board
Pin No.
Signal name
1
FG
2
SD
3
RD
4
RS
5
CS
6
5V
7
DR
8
ER
9
SG
CJ1M CPU Unit (Polled Unit 1)
CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)
RS-422A/485 interface
Pin
No.
Shield
CJ1M CPU Unit (Polled Unit 1)
CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)
RS-422A/485 interface
Pin
3
4
5
1
No.
Shield
Appendices
2
3
4
5
A-131

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