Table Of Contents

Conditions for Setting and Clearing Alarms

Last Modified: October 16, 2020

Alarm states and whether you acknowledge or clear the alarm determine the notification behavior of your configured alarms.

Alarm States

Once you begin collecting data, define conditions that set or clear an alarm. Alarms can have a combination of the following states.
Set InsightCM detected that conditions for an alarm rule have been met and created an alarm instance.
Acknowledged A user indicated awareness of the alarm.
spd-note-note
Note  

Acknowledging an alarm does not clear it, so that if the conditions for setting the alarm are met again, a new alarm instance is not logged.

Clear InsightCM detected that the alarm rule is no longer true. A cleared alarm remains on the Active Trend Alarms tab or Active Spectral Alarms tab until you acknowledge it.
The following table lists the different alarm states the web application displays on the Alarms page.
Set? Clear? Acknowledged? Location on Alarms page
Active Alarms tab
Active Alarms tab
Active Alarms tab
Alarm Instances dialog box

Alarm Changes State Without Acknowledgment

To demonstrate how an alarm enters a Set state, consider the following illustration where an alarm is set and cleared twice. Assume that you never acknowledged the alarm. In this example, the same alarm instance remains on the Active Trend Alarms tab or Active Spectral Alarms tab the entire time even though its status transitions to Clear twice. Since the first instance of the alarm was not acknowledged, InsightCM collects no additional data sets and issues no new notification when the alarm enters the Set state the second time.

Alarm set
Alarm clear

Alarm Changes State with Acknowledgment

Consider the same scenario and data as in the previous section. If you acknowledge the alarm at either time indicated by in the following illustration, the web application moves the first alarm instance from one of the Active Alarms tab to the Alarm Instances dialog. When the data crosses the set threshold the second time, the web application displays a new alarm instance an Active Alarms tab.
spd-note-note
Note  

Since the first instance of the alarm was acknowledged, InsightCM collects a new data set and issues a new notification when the alarm enters the Set state the second time.

Alarm set
Alarm clear
Times when acknowledging the alarm will cause the web application to move the first alarm instance to the Alarm Instances dialog box after its status becomes Clear.

Viewing Alarm State Timestamps

To see the timestamps of an alarm entering Set, Cleared, or Acknowledged states, double-click the alarm instance on the Active Alarms tab.


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