Technical data

4–36 Troubleshooting
Utilities and Exercisers
The controller’s software includes the utilities and exercisers to assist in
troubleshooting and maintaining the controller and the other modules that support its
operation.
Fault Management Utility
The Fault Management Utility (FMU) provides a limited interface to the controller’s
fault-management software. Use FMU to:
■ Display the last-failure and memory-system-failure entries that the fault-
management software stores in the controller’s non-volatile memory.
■ Translate many of the code values contained in event messages. For example,
entries may contain code values that indicate the cause of the event, the software
component that reported the event, the repair action, and so on.
■ Control the display characteristics of significant events and failures that the fault-
management system displays on the maintenance terminal. See “Controlling the
Display of Significant Events and Failures,” page 4-40, for specific details on this
feature.