Rockwell Automation 1768-L43_L45_L43S_L45S CompactLogix Controllers Installation Instructions - Manual (Page 27)

CompactLogix Controllers 27
Publication 1768-IN004D-EN-P - December 2009
Clear a Nonrecoverable Fault
If the OK status indicator is solid red, follow these steps to clear the
fault.
1. Cycle power.
2. Download the project.
3. Change to REM RUN or RUN mode.
If the issue persists, record the status of the OK and RS-232 indicators
before cycling power and contacting Rockwell Automation support.
Troubleshoot a Nonresponsive Module
Follow these steps to determine why a device may not be
responding.
1. Verify that all I/O modules in your project are installed in the
same order.
2. Verify that all devices have been updated to the latest major
and minor firmware revisions.
3. Use RSLogix 5000 software’s online help to determine which
module is not responding.