Addressable Gas Detection System Manual
Addressable System Manual
69
Issue 2, January 2015
The
“Selected Events”
lists all events, which will trigger the relay e.g.: Alarm 2 of at
least one of the channels 1, 2, 3 and so on of RIO module 1.
The
“Filter”
buttons on the left side allow reducing the list of shown events. The list
will only contain the selected event type. In the Fig. 4.5.6 c above only Alarm 2 type
events are listed.
The
“Description”
is not mandatory for the reliable function of the gas detection
system. It is an aid for the user to indicate useful additional information for the
maintenance to indicate the function of the outputs e.g.:
Programming of a new Output
An output is specified by the combination of events listed on the left bottom side of
the
“Events”
tab under the output details – see Outputs details screen in Fig. 4.5.6 c
Example: Relay 9 of Module 3 is chosen to be configured.
On the lower left side “Alarm 1” is marked. Therefore in the list of events only the
alarm 1 for all channels is indicated. Channel 1 of input module RIO 1 is chosen. The
marked channel events are indicated in the right window “Selected Events”.
The relay will be triggered by a single alarm (Alarm 1 of channel 1 of RIO 1).
In the Fig 4.5.6 d)
below, the “Alarm 2” is marked and the channels 1, 2 and 3 of RIO
3 are chosen and all three are listed in the right window “Selected Events” and the
“OR” function is highlighted.
The relay will be triggered by as common alarm (if one of the 3 chosen channels will
exceed the Alarm 2 level).
Fig. 4.5.6 d) Output events details screen – example of an OR combination
For a common alarm maximum of 16 events can be combined with the “OR”
function. If a common alarm is required for more than 16 events see page 82
“Combined events”.
Alternatively to the combination of events by “OR” the “Voting” function can be
chosen.
