Omron CP1H CPU Operation Manual page 735

Connections to Serial Communications Option Boards
1:N Connections Using RS-422A/485 Ports
CPU Unit
Signal Pin
RS-422A/
485
Option
Board
Terminal block
CPU Unit
Signal Pin
RS-422A/
485
Option
Board
Terminal block
Device supporting RS-422A/485
communications (2-wire)
Signal
RS-422A/
485 inter-
face
Device supporting
RS-422A/485
communications
(2-wire)
Signal
RS-422A/
485 inter-
face
B500-AL001-E Link Adapter
Shield
Pin
Signal Signal
RS-422A
RS-422A/
485 inter-
face
Signal
Pin
Device supporting
RS-422A/485
communications
Shield
(4-wire)
RS-422A
Signal
Pin
RS-422A/
485 inter-
face
D-sub, 9-pin
connector (male)
Device supporting
RS-422A/485
communications
(4-wire)
Shield
Signal
RS-422A/
485 inter-
face
RS-422A
Appendix F
701