The Variable SensorValue is the value of the quantity sensed by the sensor.

A defect detection sensor device may measure multiple physical properties, e.g. net tobacco weight, moisture, foreign matters etc.. Each property measured shall be modelled as a separate SensorValue Variable, which is to this purpose a Mandatory Placeholder Variable.

The type of the Variable SensorValue is AnalogItemType and is defined in OPC 10000-8. Thus SensorValue inherits the Definition Property that shall be used to define the physical property measured. The Definition Property is used to identify the semantics of the measurement, e.g “Measurement of the cigarette diameter” or “Measurement of the cigarette circumference”.