[Alarm]KeepOnlineFor

This parameter defines (in weeks) how long event data will remain on the Alarm Summary and SOE pages. When this time expires, the event data is deleted from disk and will no longer appear. This ensures disk space remains available to capture ongoing events.

For example, if this parameter is set to 1 (one week), events that are stored historically on Sunday will remain on the Alarm Summary and/or SOE pages for 7 days. They will then be deleted on the following Sunday. The event messages may be archived within the 7 days using the [Alarm]ArchiveAfter parameter.

During the period of time specified by this parameter, event data can change as new event messages are reported. However, if archiving is enabled, the event data will become read-only once it has been archived.

For more information, refer to the topic Configure the Archiving Parameters in the Plant SCADA documentation.

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:

1 - 5200

If an out-of-range value is specified, the default value (6) will be used and a hardware alarm will be raised.

Default Value:

6

See Also

Alarm Parameters