Omron CP1E Series - Page 248

Appendices
A-32
CP1E CPU Unit Hardware User’s Manual(W479)
• Wiring Example Using RS-422A/485 Ports with RS-485, 2-wire Connections
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
DIP SW
SW1:
SW2:
SW3:
SW4:
SW5:
SW6:
DIP SW
SW1:
SW2:
SW3:
SW4:
SW5:
SW6:
RS-422A/485 interface
Signal name
Pin
RS-422A/485 interface
Signal name
Pin
RS-422A/485 interface
Signal name
Pin
CP1E N-type CPU Unit
Built-in RS-232C port
CJ1W-CIF11 RS-422A Conversion Unit
ON (with terminating resistance)
ON (2-wire connection)
ON (2-wire connection)
OFF
OFF (no RS control for RD)
ON (with RS control for SD)
CP1E N-type CPU Unit (Polled Unit No. 0)
CP1W-CIF11 RS-422A/485 Option Board
OFF (no terminating resistance)
ON (2-wire connection)
ON (2-wire connection)
OFF
OFF (no RS control for RD)
ON (with RS control for SD)
CJ1M CPU Unit (Polled Unit No. 1)
CJ1W-CIF11 RS-422A Conversion Unit
DIP SW
SW1:
SW2:
SW3:
SW4:
SW5:
SW6:
ON (with terminating resistance)
ON (2-wire connection)
ON (2-wire connection)
OFF
OFF (no RS control for RD)
ON (with RS control for SD)
RDA– RDB
+
SDA– SDB
+
FG
RDA– RDB
+
SDA– SDB
+
FG
RDA– RDB
+
SDA– SDB
+
FG
Shield