Allen-Bradley Micro870

304 Rockwell Automation Publication 2080-UM002K-EN-E - March 2019
Appendix E Troubleshooting
Status Indicator Description
Description State Indicates
1 Input status Off Input is not energized
On Input is energized (terminal status)
2 Power status Off No input power, or power error condition
Green Power on
3 Run status Off Not executing the user program
Green Executing the user program in run mode
Flashing green Memory backup/restore in progress
4 Fault status Off No fault detected.
Red Non-recoverable fault that requires a power cycle.
Flashing Red Recoverable fault.
5 Force status Off No force conditions are active.
Amber Force conditions are active.
6 Serial
communications
status
Off No traffic for RS-232/RS-485.
Green Traffic through RS-232/RS-485.
The indicator only blinks when transmitting data. It
does not blink when receiving data.
7 Output status Off Output is not energized.
On Output is energized (logic status).
8 Module status Steady Off No power.
Flashing Green Standby.
Steady Green Device operational.
Flashing Red Minor fault
(minor and major recoverable faults).
Steady Red Major Fault (non-recoverable fault).
Flashing Green
and Red
Self-test.
The device is performing power-on self-test
(POST). During POST, the network status indicator
alternates flashing green and red. The duration of
the self-test depends on the size of the project in
the controller.