Every alarm triggered in the plant
and defined as such during project design is principally registered in
two different lists which are generated automatically by IGSS: the ALARM
LIST and the ALARM LOG.
These lists provide the operator with important information about the alarm
situation.
| Active Alarms | Alarm Log |
|---|---|
|
contains all pending alarms, i.e. those alarms that are currently active.
|
Contains ALL process alarms, including those that have been acknowledged or whose cause has in the meantime been corrected. |
|
Alarms are automatically deleted from the list when the alarm situation has ended AND the alarm has been acknowledged. Alarms that are acknowledged but whose cause has not yet been eliminated, or alarm situations that have been corrected but not yet acknowledged, remain in the alarm list, i.e. they are considered as being active or pending. |
Alarms are not automatically deleted from the alarm log, irrespective of their ‘age’.
|
|
The alarm list is a subset of the alarm log. |
The alarm log contains the pending alarms registered in the alarm list AND the ‘old’ alarms. |
|
You may define your own sorting and filter criteria and thus exactly define which type of alarms you want to have displayed in the alarm list and in which format and layout. |
You yourself define the period of time to be covered by the alarm log. You may for instance decide to call up an alarm log that shows all alarms - acknowledged or not – from the last 24 hours. |
|
All edit functions offered in the menu bar (filter, sort, find, note, freeze, delete, update etc.) can be applied to the alarm list. |
All edit functions offered in the menu bar (filter, sort, find, note, freeze, delete, update etc.) can be applied to the alarm log. |