Allen-Bradley SLC 500 User Manual

Publication 1747-UM011G-EN-P - June 2008
Troubleshooting 165
Troubleshooting Your
Output Modules
The following will assist you in troubleshooting your output modules.
Output Circuit Operation
An output circuit controls the output signal in the following manner.
1. Logic circuits determine the output status.
2. An output status indicator indicates the status of the output
signal.
3. Opto-electrical isolation separates output circuit logic and
backplane circuits from field signals.
4. The output driver turns the corresponding output on or off.
Output
Output
Drivers
Opto-Electrical
Isolation
Logic
Circuits
Backplane
status indicator
Logic
Circuits

Allen-Bradley SLC 500 Specifications

General

Brand	Allen-Bradley
Model	SLC 500
Category	Controller
Language	English