Omron CP1L - Page 708

674
Connections to Serial Communications Option Boards Appendix F
1:1 Connections Using RS-422A/485 Port
1:N Connections Using RS-422A/485 Ports
5-V (+)
power (-)
D-sub, 9-pin
connector (male)
NT-AL001-E Link Adapter
Shield
RS-232C
Interface
Signal
Pin
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
Pin
CPU Unit
Computer
Terminal block
4-wire
Terminating resistance ON
Signal
Signal
Pin
Signal
RS-422A
/485
Option
Board
5-V (+)
power (-)
D-sub, 9-pin
connector (male)
NT-AL001-E Link Adapter
Shield
RS-232C
Interface
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
Pin
CPU Unit
Computer
Terminal block
CPU Unit
B500-AL001-E Link Adapter
D-sub, 9-pin
connector (male)
Shield
Shield
Signal
RS-422A/
485
Option
Board
Signal
RS-422A/
485
Option
Board
Shield
Pin
Signal
Pin
Signal
Pin
Signal
Signal
Pin
Signal
Pin
4-wire
Terminating resistance OFF
4-wire
Terminatin
g
resistance ON
RS-422A/
485
Option
Board
Signal
Pin