Alarms
- Last UpdatedFeb 06, 2024
- 5 minute read
The principles of Situational Awareness specify that alarm conditions should be signaled using easily recognizable shapes and high-intensity color. This ensures that alarms stand out against the primarily achromatic color scheme used for the runtime interface.
It is also necessary to provide notification for all active alarms, even if they occur on a page that is currently not displayed. Direct access to the page that represents the source of an alarm should also be available when notification occurs.
In the case of the Situational Awareness Starter Project, a default set of six Genies (three large and three small) are included in the "sa_priorities" library to facilitate the signaling of alarms in accordance with these principles.
Genies are also provided to represent when an alarm is "shelved", which means the alarm is disabled for a specified period of time. See Shelve Alarms.
Note: If required, you can customize the appearance of these Genies.
The Genies are used to highlight alarm conditions in the following locations.
Alarm indicators are used on content pages to highlight an alarm condition for a specific object or group of objects. They comprise of an alarm flag (the large alarm priority Genie) and an alarm border.
For more information, see Use Alarm Indicators.
The Navigation Zone provides a system-wide view of current alarms across all pages.
Each tab provides a tally of the top three priority alarms that are active on the pages included on the tab.
Each button provides a tally of the top three priority alarms and shelved alarms for the location it opens.
For more information, see Enable Navigation Zone Alarm Counts.
Small icons are used to highlight the top three alarm priorities in alarms lists.
If an alarm is shelved, the priority icon will display a white fill.
This occurs in the following locations:
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Alarms pages (see Default Alarm Pages).
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The alarms list in the .
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the Active Alarms Zone (if a UHD4K workspace is used).
The tree view on each alarms page provides an alarm count for the top three alarm priorities and shelved alarms within each branch of the equipment hierarchy (see Default Alarm Pages).
As well as using color to indicate the priority of an alarm, the appearance of an alarm indicator or icon can be used to show the current state of an alarm.
The following table shows how different alarm states are indicated for a priority 1 (Emergency) alarm in a project based on the Situational Awareness Starter Project.
|
State |
Alarm Indicator |
Alarm icon |
|---|---|---|
|
On Unacknowledged |
|
|
|
On Acknowledged |
|
|
|
Off Unacknowledged |
|
|
|
Shelved |
|
|
By default, the six alarm priority Genies are associated with the top three alarm priorities via the display properties for each priority.
The Genie Name property specifies the larger Genie used as an alarm flag; Small Genie Name specifies the smaller Genie that is used as an alarm icon. See Configure Display Properties for an Alarm Priority.
The Genies that are used to represent a shelved alarm are associated with an Alarm Mode named "Shelved/Disabled" (see Configure Display Properties for an Alarm Mode).
See Also
Add an Additional Alarm Count to the Navigation Zone