Alarm handling procedure

The RTS cyclically checks the alarm variables and enters alarms according to status with a “Come” AlarmOn or “Go” AlarmOff time stamp in the alarm buffer. If required, incoming alarms (“Come” alarms) can also be provided with the screen page change action #Page=name.

If the alarm buffer is full and a new alarm is generated, an alarm is overwritten in the buffer according to the following criteria:

1. If the oldest alarm is inactive and acknowledged, it will be overwritten by the new one.

2. If the oldest alarm is inactive and not acknowledged, it is overwritten.

3. If there is no inactive alarm, the oldest active and acknowledged alarm is overwritten.

4. If there is no inactive acknowledged alarm, the oldest alarm will be overwritten. (in this case the alarm will be "lost", i.e. it is no longer displayed in the alarm list -> more than 512 active alarms!)