Omron PRT1-COM Operation Manual page 111

Relay Output Units
Components
I/O Unit Interface
Communications Connector 1
(on the Communication Unit side)
TS Indicator (Refer to page 162.)
Internal Circuits
Terminal Arrangement
100
Output Indicators
Display the status of the outputs.
Lit when an output is ON.
DIN Track Mounting Hook
Note For details on how to replace Relays, refer to page 165.
Miniature Relays (G6D-1A)
If a Relay malfunctions, it can be replaced individually.
I/O Unit Interface
Communications Connector 2
(on the terminator side)
Terminal Block
Photo-
coupler
Photo-
coupler
Section 6-4