Instructions

UM-0085-B09 DT80 Range User Manual Page 132
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For example, if the statistical schedule rate is set to its default of 1 second, and the above channel's schedule is set to its
default rate of 5 seconds, then the sensor will be sampled once per second. Every 5 seconds it will log the instantaneous
value of the sensor, plus the average, minimum and maximum, calculated over the previous 5-second period.
For each selected statistical value, an automatically generated channel name is used (e.g. "Indoor12_AV"), which
consists of the channel name plus a suffix describing the statistical operation.
You can choose not to log a calculated statistical value. For example, it may be being used as an input to a calculation
channel.
Finally, each statistical value may optionally be assigned to a channel variable. You may want to do this if the value is to
be made available to a Modbus client system, for example.
 Event/Alarm
This tab is used to create an alarm channel. This will test the channel's measured value against a setpoint and then take
some action if the condition is satisfied. Alarms are also referred to as "events" in the configuration builder.
The first step in defining an alarm is to specify the alarm condition.
Figure 29: Defining an alarm condition
In the above example, the alarm condition will be true if the channel value is outside the range -5 to +45. The next step is
to define the actions to perform.
Figure 30: Defining alarm actions
The checkbox at the top specifies whether the actions should be repeated each time that the alarm condition tests true,
or whether they should be performed once
, when the alarm condition goes from false to true.