Related Products:

EMMK-101, EMMK-102, EMMK-103

Related Documents:

ISCM-0380

Type:

Operation

Keywords/Labels:

acknowledgements, timestamps

Summary:

This article explains the conditions for setting and clearing alarms.

Conditions for Setting and Clearing Alarms

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.

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

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Active Alarms tab

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Active Alarms tab

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Active Alarms tab

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Alarm Instances dialog box

SetAcknowledgedClear

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.

loc_eps_alarms_active.gif
callout_1.gif

Alarm set

callout_2.gif

Alarm clear

SetClearSet

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 callout_3.gif 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.

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.

loc_eps_alarm_acked.gif
callout_1.gif

Alarm set

callout_2.gif

Alarm clear

callout_3.gif

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.

Set

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.

Alarms page.png
SetClearedAcknowledged
SetAcknowledgedClearSetClearSetSetSetClearedAcknowledged

Do you need more help?

SetAcknowledgedClearSetClearSetSetSetClearedAcknowledged
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