Rockwell Automation 1769-L32C_L35CR CompactLogix Controller Installation Instructions - Manual (Page 42)

42 1769-L32C, 1769-L35CR CompactLogix Controller
Publication 1769-IN070C-EN-P - May 2008
Module Status Indicator
Indicator Status Description
MS Off Controller has no power. Apply power.
Make sure that the controller is firmly seated in the slot.
Steady red Major fault occurred on the controller. Cycle power. If problem
persists, replace the controller.
Flashing
red Minor fault occurred because a firmware update is in
progress. No action required (firmware update in progress).
Node address switch change occurred. The controller’s node
address switches may have been changed since power-up.
Controller uses invalid firmware. Update the controller
firmware with the ControlFlash Update utility.
Controller’s node address duplicates that of another device.
Remove power. Change the node address to a unique setting.
Reapply power.
Steady
green Connections are established.
Flashing
green No connections are established. Establish connections, if
necessary.
Flashing
red/green The controller is performing self-diagnostics. Wait briefly to
see if problem corrects itself. If problem persists, check the
host. If the daughtercard cannot communicate with the host,
the card can remain in Self-test mode.