Addressable Gas Detection System Manual
Addressable System Manual
75
Issue 2, January 2015
When choosing the button “Add New Combined Event” a pop up window will be
opened.
Fig. 4.5.6 l) Combined events management
in Voting
Fig. 4.5.6 m) Combined events management in
OR
In the Fig. 4.5.6 l a voting is specified; in Fig. 4.5.6 m the events are combined by
OR.
A description should be added to identify the new events in the list of combined
events.
In the example in Fig. 4.5.6 l)
channels 1 to 5 from RIO 1 are chosen for a 2 out of 5
voting of Alarm 1 with the option Fault as Alarm.
If in two of the five channels the concentration is exceeding the value for
Alarm 3 the alarm will be activated. If one of the five channels is in fault
condition, the alarm will be activated by one channel exceeding the
conditions for Alarm 1. If two of the five channels are in Fault condition the
Alarm will be activated immediately.
A similar voting function was specified for RIO 2.
These two events are chosen in Fig. 4.5.6 n below as combined effects.
Fig. 4.5.6 n) Output details screen as a combination of “Combined events”
The chosen effects are combined with “or” to trigger the selected Output
In this example, the Output will be triggered if one of the two voting functions in RIO
1 or in RIO 2 enters the specific alarm conditions.
