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AVEVA Enterprise SCADA

Alarm Suppression Row Details: Main tab

  • Last UpdatedApr 24, 2025
  • 2 minute read

The Main tab in the Alarm Suppression (almsuppression) Row Details dialog box is used to configure suppression timeout values and alarm states for child and parent points.

Refer to the table below for field descriptions and instructions on how to configure the editable fields.

Items on the Main Tab in the Almsuppression Row Details Dialog Box

Items

Description

Inhibit Re-Generate Alarm

Select to inhibit the system from re-generating an alarm when the timeout expires for a child point that, depending on the point, either goes into alarm or undergoes an uncommanded change of state during the period of alarm suppression.

Parent Alarm/Control

Enter the suppression time in seconds.

This field only applies to the Parent Alarm and Parent Control types of Suppression Method.

Parent Return to Normal

Enter the amount of time in seconds to suppress the alarm when the parent point returns to its configured normal state.

Note: If Parent Return to Normal is a non-zero value, and Parent Alarm/Control is zero, the system will indefinitely suppress child point alarms while the parent point is in the configured abnormal state.

This field only applies to the Parent Alarm type of Suppression Method.

Alarm Holdoff

This field only applies to the Parent Alarm and Transient types of Suppression Method.

Valid for Specified State

Select to enable the Alarm State field.

Alarm State

Enter the state for which the alarm suppression configuration is valid. For analog, it might be high alarm state; for status, it might be the opened state.

Valid for Specified Parent State

Select to enable the Oil and Gas Extensions (OGX) "Parent State Alarm Suppression" functionality. Otherwise, the default parent state alarm suppression remains in place.

The items in the Parent State Alarm Suppression apply only to the Parent Alarm and Parent Control types of Suppression Method.

Alarm State

Enter the parent alarm state for in-alarm suppression.

Suppress child on parent abnormal state change

Select to suppress alarms on the child point anytime the parent point changes to an abnormal state, regardless of whether or not the state to which it changes is the Alarm State.

For further information, refer to Parent State Alarm Suppression.