Rockwell Automation FactoryTalk Alarms and Events Quick Start - Manual (Page 115)

8 • Monitor and interact with alarms at run time
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Disable or enable an alarm
Disabled alarms
When an alarm is disabled the operator is not notified when the alarm condition
occurs and the alarm is removed from the Alarm and Event Summary. An alarm that is
disabled is effectively turned off in the controller. The alarm condition is no longer
monitored and notifications are not generated by the controller. Disabled alarms do
not sound the alarm bell in the Alarm and Event Banner, and are not displayed as new
events in the Alarm and Event Summary.
Because a disabled alarm does not appear in the Alarm and Event Summary, you
cannot enable it in the Alarm and Event Summary. To enable alarms, use the Alarm
Status Explorer. See “To enable an alarm:” on page 109.
Unlike a silenced alarm, a disabled alarm does not trigger the alarm bell in the Alarm
and Event Banner if the alarm condition occurs again after the alarm was disabled.
Disable alarms that are related to equipment that is being shut down or serviced.
Enabled alarms
When an alarm is enabled, the operator is notified when the alarm condition occurs.
Enabled alarms sound the alarm bell, and continue appearing as new events in the
Alarm and Event Summary, unless they are suppressed.
You can use FactoryTalk Security to control who can disable or suppress alarms. If a
user attempts to perform an operation for which they do not have the required
security rights, the operation will fail and a message will be displayed stating that
the user has insufficient rights to perform the operation. To add another level of
security, the Alarm and Event Summary can be configured not to show the toolbar
buttons, which also hides those operations on the context menu.