Resolve alarm faults

Resolve alarm faults

Alarm faults occur for two reasons:
  • Condition related issues
    . Abnormal conditions are events that occur outside normal operations. A disconnected network, power cycles to a controller or HMI device, project downloads to the controller, major faults on a controller, or a controller in Program mode can all cause alarm faults.
  • Configuration related issues
    . Alarms exist in
    Logix Designer
     with enforced valid configuration values. Configuration errors generally occur when alarm parameters change by writing to a member of the alarm. An alarm with a member named
    AlarmName.Severity
     indicates the severity of its associated alarm condition. Changing the severity tag member to an invalid value shows the alarm as bad quality until the severity changes to a valid value.
To resolve alarm faults
  1. Open the
    Alarm Manager
     screen.
  2. In the
    Inhibit State
     column, select an alarm row that has a
    Bad Quality
     icon ViewRTAlarmSumBadQualityIconV5New.
  3. To view the details of the alarm, select
    Details
    ViewRTAlarmSumDetailsbuttonV5. A
    Details
    pane with additional information for the last selected alarm appears.
    TIP:
    The
    Details
    pane opens at the bottom of an alarm table for ten-inch or larger HMI devices and replaces the alarm table on six-inch to nine-inch HMI devices.
  4. In the
    Details
    pane review the reasons for a faulted alarm or condition in the last row -- Quality Details.
  5. Resolve the alarm fault.
    • Correct the condition causing the alarm fault.
    • Correct the configuration causing the alarm fault.
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