Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 134

Wiring
Note
Note
1:N, 4-wire Connections from RS-422A/485 to RS-422A/485 Ports
Serial Communications
Board/Unit
Signal
RS-422A
/485 In-
terface
D-sub, 9-pin
connector (male)
Communications Mode: 1:N NT Link
1. Serial Communications Board/Unit settings:
Terminating resistance ON, 4-wire.
2. The terminating resistant setting shown above is an example for the
NT631/NT631C. The setting method varies with the PT. Refer to the man-
ual for you PT for details.
1:N, 2-wire Connections from RS-422A/485 to RS-422A/485 Ports
Serial Communications Board/Unit
Signal
RS-422A
/485 In-
terface
D-sub, 9-pin
connector (male)
Communications Mode: 1:N NT Link
1. Serial Communications Board/Unit settings:
Terminating resistance ON, 2-wire.
Pin
Hood
Short bar
Pin
Hood
Terminal block or D-sub connector
Short bar
Terminal block or D-sub connector
Section 3-3
Signal
RS-422A
/485 In-
terface
FG
Terminal block or D-sub
connector
(See note 2.)
Signal
RS-422A
/485 In-
terface
FG
Terminal block or D-sub
connector
Signal
RS-422A
/485 In-
terface
FG
(See note 2.)
Signal
RS-422A
/485 In-
terface
FG
105