Implementation of an implicit alarm

Alarm type Alarm (API) works in a similar way to alarm type Event API.

The difference is that all alarm classes can be used with all acknowledgment methods. The application can be used to control when the "Activate" and "Deactivate" transitions are performed. Depending on the alarm class and its acknowledgment methods, this kind of alarm may need to be acknowledged.

You configure this in an alarm group or in an alarm group template with template instance. The alarm statuses can be set by calling the API.

The IAlarmHandler9 interface of the AlarmManager library provides functions to trigger, unlock, activate (ActivateAlarm), and deactivate (DeactivateAlarm) alarms. The ActivateAlarmInstance and DeactivateAlarmInstance functions are used when the alarms are configured as "instance alarms".

Example 23. Example

Code fragment to set alarm states by calling the API

AlarmManager.AlarmGlobals.g_AlarmHandler.ActivateAlarmInstance(THIS, Alm_AGT_POU_Alarm_IDs.ID_1);
AlarmManager.AlarmGlobals.g_AlarmHandler.DeactivateAlarmInstance(THIS, Alm_AGT_POU_Alarm_IDs.ID_1);