Operation Manual

InZennio Z41
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Consequently, alarm boxes permit configuring the following parameters:
 Trigger: defines the value that will trigger the alarm (“0” or “1”; it is “1” by
default), i.e., the value that, when received through [Pn][Bi] Alarm
Trigger, should be interpreted by Z41 as an alarm situation. Implicitly, this
parameter also defines the inverse “no alarm” value.
 Periodic Monitoring: activates (“Yes”) or deactivates (“No”, default
option) periodic monitoring of the alarm trigger object.
 Cycle Time (x 1min.): in case of having selected “Yes” under the above
parameter, sets the maximum accepted time space without receiving the
“no alarm” value before Z41 adopts the alarm situation.
Example I: supposing a certain sensor responsible for sending the value “1”
(once) to the bus when a flood is detected, and the value “0” (again, only
once) when such situation terminates, if the object sent is linked to the alarm
trigger object from an alarm box in Z41 where no periodical monitoring has
been parameterised and where the value “1” has been set as the alarm value,
then Z41 will notify an emergency every time a flood takes place. The
notification will stop as soon as the user touches any button, although a
warning icon will still blink on the screen. After that, if the user acknowledges
the alarm, the icon will stop blinking, switching then off once the sensor sends
a “0”.
Example II: suppose a certain CO
2
sensor responsible for sending the value
“0” to the bus every two minutes, except when it detects a dangerous CO
2
level; in such case, it will immediately send the value “1”. If the object being
sent is linked to the alarm trigger object from an alarm box in Z41 where
periodic monitoring has been parameterised and where the value “1” is
configured as the alarm trigger value, then Z41 will notify the user about the
emergency both if the CO
2
level reaches a dangerous level and if the sensor
stops sending the value “0”, for example due to failures or sabotage. The user
should proceed in the same manner as in the above example to manage the
alarm notification.