Operation Manual

Z41 Lite

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Figure 82 Alarm (Box).

The intermitting exclamation means that the alarm is active and unconfirmed.

However, alarm boxes implement an additional binary object, [Pn][Bi] Alarm

Confirmation, intended for receiving the value “1” from the bus, which will be

interpreted as an acknowledgement of the alarm, thus making the icon

intermittence stop. Alternatively, the alarm can be acknowledged by touching

on the “OK” button in the box itself, which will cause the sending of the value

“1” through the mentioned object.

The alarm will definitely become inactive once it has been confirmed and, in

addition, once the [Pn][Bi] Alarm Trigger object goes back to the “no alarm”

state (the order of these two events is irrelevant), after which the icon will

finally turn off.

Figure 83 Alarm state diagram (case of confirmation previous to the alarm end)

There is also the possibility of periodically monitoring the status of the

trigger object, for situations where this object is periodically received from the

bus. This will let Z41 Lite automatically assume the alarm situation if the “no

alarm” value does not get sent through the trigger object after a certain time,

for example upon failures of the transmitter. The maximum time window can

be defined by parameter.

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

Not(Trigger)

Alarm

Muted

Alarm

Confirmed

Acknowledgmt.

Random

Button Press