[Alarm]DisplayDisable

Adjusts the behavior of disabled alarms so they are "suppressed" rather than completely disabled.

By default, when an alarm is disabled it is no longer processed by the system. The alarm is not logged, it is not included on alarm lists (except the disabled list), and does not change state with the I/O device variable.

By setting this parameter to 1, disabled alarms are suppressed. This means they are still processed, logged, and listed on the Sequence Of Events (SOE) and Alarm Summary pages. However, they are not displayed on the Active Alarms page.

While this parameter is set to 1, the User Name and User Location recorded at the time an alarm was disabled will be maintained, despite any subsequent state changes. These properties will not be overwritten by the System User account.

Note: This parameter can also be applied to a specific cluster or alarm server process. For more information, see Configure Alarm Parameters for a Specific Cluster or Process.

Allowable Values:

• 0 - (Offscan - disable completely)

• 1 - (Suppress - alarm will not display on the Active Alarms page)

Default Value:

0

Note: You need to decide whether you would like to suppress disabled alarms when designing your system. If you do decide to change the parameter to 1, you will have to keep the setting for the lifetime of your system (including after any upgrades to later versions of Plant SCADA). If you change the value of this parameter back to zero (0) after your system has been running, the integrity of the historical data will not be maintained correctly. This will cause issues when historical data is displayed on Process Analyst and the Alarm Summary page.

See Also

Alarm Parameters