Alarm and Event
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Hiding Rules
Hiding rules define conditions under which alarms from a specific object will be
hidden. The condition can be an expression containing any boolean OPC Property
or alarm condition. One hiding rule can only hold one condition. Logic expressions
are possible to create directly in the rules.
If you want more complex conditions, these can be made by defining for example
soft alarms using Alarm Expressions (refer to Alarm Expression on page 138).
Refer to Configure Alarm Hiding on page 106 for more information.
Hiding Mask Manager
The hiding masks are added and managed in the Hiding Mask Manager. The dialog
box displays Name, Condition, Deactivation Delay, and Description of the hiding
masks, refer to Figure 33.
Figure 33. Hiding Mask Manager Dialog Box
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