System information

ATS 2000/3000/4000/4500 Programming manual 151
EVENT FLAGS
What are event flags?
Event flags are memory locations in a microprocessor system that register the occurrence
of certain events. Those events can be pre-defined or can be programmed. In other
words: when certain events take place, event flags are triggered.
Why does the ATS system use event flags?
The ATS system uses event flags to provide the most flexible solution for activating
outputs and manipulating macros. Using event flags gives both options using the same
event flag. It is far more flexible then using fixed output types, because fixed output types
are hard to combine. Using event flags it is possible to use the same event flag for more
then 1 event, resulting in combined events.
What events can trigger event flags?
There is a multitude of events. They range from a zone being activated to a 230 V mains
failure. From users opening doors to entry/exit timers running. In total event flags can be
programmed in:
• Zone database as “Zone event flag”. Zones can also be linked to pre-defined event
flags for siren events, armed or disarmed alarm flags and more. Event flags are
triggered when certain events occur regarding this particular zone.
• Area database. Here are event flags triggered for entry or exit timers, sirens being
activated, alarms occurring etc. Event flag are triggered when certain events in an
area occur, regardless off the zone.
• RAS database. When using door commands, a door can be opened.
• Zone Shunt. When a zone is shunted due to opening of a door.
• Summary event flags contain system events like 230 V mains failures or low battery.
• Macro Logic uses event flags or an output status to manipulate zones or event flags.
• The 4-door DGP and 4-lift DGP can trigger event flags internally. See the
programming manual for the appropriate DGP.
Some events trigger event flags in different sections. When a zone goes into alarm:
• the siren is activated (programmed in the area database and the zone database)
• also an indicator above the door might be lit, because the zone event flag is also
triggered.
All this happens at the same time, activated by the same event: the zone causing an
alarm.
Which event flags are pre-defined?
There are 16 pre-defined event flags. These are: