
350 vFoglight
Administration and Configuration Guide
• Enter and Exit
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4
To enable the trigger without data, select the Enable Trigger without Data check
box.
5
Save your changes.
To assign a time -driven trigger:
Note This procedure continues from “Adding calculations to derived metrics” on page 344.
1
In the Expression area, under Trigger Type, select the Schedule Driven option.
The Expression area refreshes, showing a set of controls on the right.
2
Specify the recurrence interval for the trigger in the hh:mm:ss format.
3
To enable the trigger without data, select the Enable Trigger without Data check
box.
4
Save your changes.
To assign a data -driven trigger:
Note This procedure continues from “Adding calculations to derived metrics” on page 344.
1
In the Expression area, under Trigger Type, select the Data Driven option.
2
Save your changes.
From here, you can proceed to “Setting the value type” on page 350.
Setting the value type
Once you define the scope and trigger of the derived metric, you can specify the value
type for the derived metric. The value type for a derived metric dictates the appearance
of the derived metric. You can set the derived type to a metric, and specify its unit of
measurement, or to an observation.
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