Rockwell Automation 1769-L31 CompactLogix Controller Installation Instructions User Manual
Page 26
26 1769-L31 CompactLogix Controller
Publication
1769-IN069C-EN-P - May 2008
OK
Off
No power is applied.
Flashing red
If the controller is new, the controller requires a firmware update.
If the controller is not new, a major fault occurred.
To clear the fault, either:
turn the keyswitch from Prog to RUN to PROG.
go online with RSLogix 5000 software.
Solid red
The controller detected a nonrecoverable fault, so it cleared the
project from memory. Follow these steps to recover.
1. Cycle power to the chassis.
2. Download the project.
3. Change to RUN mode.
If the OK status indicator remains solid red, contact your
Rockwell Automation representative or local distributor.
Solid green
Controller is OK.
Flashing green
The controller is storing or loading a project to or from
nonvolatile memory.
Indicator
Status
Description
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