A data point definition is used internally within the device and contains the object characteristics that the system uses to correctly setup the Present Value to the correct units and values.
NOTE: If this property is empty, it means the device has yet learn the device's application team.
Manually calculating process value and signal value pairs
Users can manually calculate process value and signal value pairs if they want to change their units. To do so, determine the range of the new unit and the range of the signal.
For example, the native units of a voltage point range from 0 to 10 volts. By default, the PV/SV pairs are 0 and 1. If the units were changed to percentage, the process values would represent the range of the new unit, 0 to 100. The signal values would represent the range of the volts, 0 to 10. Therefore, the new PV/SV pairs for in new units would be PV1[0];PV2[100] and SV1[0];SV2[10].