Value is the raw data point measured by the sensor. Value shall be read from the sensor and updated according to its SamplingRate which is set by the user (RW) and implemented by the server according to its capabilities.

Avg is the arithmetic average of the last samples. More precisely the number of samples used to compute the average is AggregationWindow. A client can set AggregationWindow to the desired value. Higher number of samples make the time series smoother but introduce a lag in response.

The same considerations apply to Std, the standard deviation of the last AggregationWindow samples.

The ProcessItem method ResetAggregates, in conjunction with the computation of Avg, Std, Max, Min, Total and an external client can be used to create aggregates over a certain product quantity or phase.