Omron CP1H CPU

705
Connections to Serial Communications Option Boards Appendix F
Connection Examples
Connections in Loopback Test
Connect the communications ports as shown below.
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
RDA− RDB+ SDA− SDB+ FG
RDA− RDB+ SDA− SDB+ FG RDA− RDB+ SDA− SDB+ FG
CP1H CPU Unit (Master)
DIP switch
Pin No. 1: ON
(With termination resistance.)
Pin No. 2: OFF (4-wire type)
Pin No. 3: OFF (4-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: OFF (No RS control for SD.)
RS-422A/485 interface
CP1H CPU Unit (Slave No. 0)
DIP switch
Pin No. 1: OFF
(No termination resistance.)
Pin No. 2: OFF (4-wire type)
Pin No. 3: OFF (4-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: ON (With RS control for SD.)
RS-422A/485 interface
CJ1M CPU Unit (Slave No. 1)
DIP switch
Pin No. 1: ON
(With termination resistance.)
Pin No. 2: OFF (4-wire type)
Pin No. 3: OFF (4-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: ON (With RS control for SD.)
RS-422A/485 interface
Signal name
Signal name Signal name
Shield
Pin
No.
Pin
No.
Pin
No.
CP1W-CIF01
RS-232C Option Board
CP1W-CIF11/CIF12
RS-422A/485 Option Board
CJ1W-CIF11
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
RDA− RDB+ SDA− SDB+ FG
RDA− RDB+ SDA− SDB+ FG RDA− RDB+ SDA− SDB+ FG
CP1H CPU Unit (Master)
DIP switch
Pin No. 1: ON
(With termination resistance.)
Pin No. 2: ON (2-wire type)
Pin No. 3: ON (2-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: ON (With RS control for SD.)
CP1H CPU Unit (Slave No. 0)
DIP switch
Pin No. 1: OFF
(No termination resistance.)
Pin No. 2: ON (2-wire type)
Pin No. 3: ON (2-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: ON (With RS control for SD.)
CJ1M CPU Unit (Slave No. 1)
CJ1W-CIF11
DIP switch
Pin No. 1: ON
(With termination resistance.)
Pin No. 2: ON (2-wire type)
Pin No. 3: ON (2-wire type)
Pin No. 4: OFF
Pin No. 5: OFF (No RS control for RD.)
Pin No. 6: ON (With RS control for SD.)
Signal name
Signal name Signal name
Shield
RS-422A/485 interface
RS-422A/485 interface RS-422A/485 interface
Pin
No.
Pin
No.
Pin
No.
CP1W-CIF01
RS-232C Option Board
CP1W-CIF11/CIF12
RS-422A/485 Option Board
RS-422A/485 port
Pin
Signal
Pin
Signal
RS-232C port