The Acknowledgment operation does not imply the disappearance of the alarm messages from the list of alarms.
Alarm messages are removed from the alarm lists only when all the following conditions are met, not necessarily in the order indicated:


    1. The alarm has been acknowledged
    2. The alarm condition has returned, i.e. the item has assumed a value that does not fall within any alarm threshold
    3. The alarm has been reset.



The Reset operation is the command by which the system is asked to delete  the alarm already acknowledged by the operator and returned. The reset can be requested for a single alarms or for all the alarms present.


The execution of the Reset command can be performed:


    1. automatically from the system
    2. manually, by the operator


 

In the first case, each acknowledged and re-entered alarm is automatically reset and is then immediately removed from the Alarm Summary list.
In the second case, the reset is carried out by the operator, at his own discretion, on one or all the acknowledged and re-enterd alarms.

The automatic reset is enabled in the alarm configuration window (see section "Configuring the alarm management system")


 

To manually reset an alarm message:

    1. Select the alarm message to be reset from within an Alarm Summary list
    2. Select the Reset command from the context menu to reset the single message

 

To reset all the indented and acknowledged alarms, select the Reset All command from the context menu.

 

Note: The reset actions can also be followed by an animation or keyboard event for which the action "LstAll: Reset" (or "LstAll: Reset All") has been configured and a valid reference to an animation is set Events List.