Allows informing a customized Filter for Alarms as an expression. Please check Alarm Filter's CustomFilter property for more information about the available Fields for use on this Filter's expression. User-defined Fields can also be used on a Filter expression, by using the name defined on the Alarm Server.

Altogether, messages displayed on E3Alarm list always pass through these Filters:

•Filter by type, defined in the FilterType property

•Filter by severity, defined in the ShowCriticalPriority, ShowLowPriority, ShowMediumPriority, and ShowHighPriority properties

•Filter by area, defined by the AreaFilter and SimpleAreaFilter properties

•Filter by this property

•Filter by the Alarm Summary, which is equivalent to the expression "Enabled AND (ConditionActive OR (AckRequired AND NOT Acked))"

Usage Examples for the CustomFilter Property

For a User-defined Field called IsSupressed, and that users want to display only Alarms where this Field's value is different from 0 (zero), the expression to use is the following:

IsSupressed <> 0

To display only messages with "HIHI" or "LOLO" Sub-conditions of Alarm objects whose name starts with "Pressure", the expression to use is the following:

(SubConditionName = "HIHI" OR SubConditionName = "LOLO")
  AND (Mid(AlarmSourceName, 1, 8) = "Pressure")