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Global Alarms
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Global Alarms
A logical source comprises different level categories, including alarms. Each logical source can include
multiple alarm levels: one for each alarm state that can be reported to the Kaleido-X system. In many
cases, a single, combined status, based on all the alarms in every alarm level for a logical source, is more
useful than having to individually assess each and every alarm condition detected. Such a global alarm
combines all the individual alarm statuses into an overall status, where the most critical events take
precedence.
Example: Three alarms occur, two of which can be acknowledged without further action, while the other
one is considered an Error. In such a case, the overall alarm status would be Error.
Each logical source has one global alarm for its alarms only. The global alarm cannot be configured and is
not exposed in the
Channels/Sources tab. It can only be assigned to a layout element that supports alarm
levels, like a UMD or an alarm monitor. In the Properties pane, the lists of alarm levels that can be assigned
to a monitor include the item GlobalAlarm , along with all the individual alarm levels.
You can select this global alarm not only as an alarm status, but also as a text label level. When an
individual alarm is in Error, its friendly name will contribute to the global alarm text value. When the global
alarm level is assigned to an alarm monitor, the text values for all contributing alarms currently in Error will
be visible.
Virtual Alarm
A virtual alarm is a special type of alarm that allows you to derive a new result from the status(es) of one
or more existing alarms.
Sub-Alarm
A sub-alarm is an alarm that contributes to the status of a higher-level virtual alarm. The effect of a sub-
alarm’s contribution is determined by the way in which the higher-level alarm is configured.
Alarm Monitor
Alarm monitors help you see the status of global and virtual alarms, but their use is not limited to this type
of alarms. When any alarm level is assigned to an alarm monitor, the status of this alarm will be shown.
When using the global alarm at the text label level, it will display the text value of the alarm, which is a
readable name. See “Configuring Alarm Monitors” on page 216, for more information.
Note: For detailed information about virtual alarms and related features, please refer to the iControl User
Guide.