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It is not possible to configure a value of hysteresis greater than the difference between the maximum and
minimum, and also a maximum smaller than a minimum. We can also associate a digital output channel to
the alarm event by maximum and another one of alarm by minimum, this means that when the analog
input in the maximum range will activate an output and in the minimum another one.
By time
In this case the Historical by time has 4 sub-types.
Current Historical by time:
This type of Historical makes a unique capture of the value of the analog channel at the moment the
configured time is due and generates the register.
Maximum Historical by time:
In this case captures are made from the last Historical until the register time is due, when this happens a
Historical is generated with the maximum value measured in this period.
Minimum Historical by time:
This Historical is similar to the maximum but only registers the minimum value in the time period.
Average Historical by time:
The concept is the same as in the previous ones but in this case it calculates an average of the value of
the channel in the time period.
The device is prepared to register by cardinal time, this means that if we configure the time in 60 minutes
at 8:38 it will register for the first time at 9:00 hrs, then at 10:00 hrs and so on.
Digital outputs channels historical records
Just as the inputs a Historical by change of the output channels can be made. Take into account that
modifying one of the outputs remotely depends on the availability of the communication with the MW at
that moment
GRD-MQ User Manual Reports and Historical records
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