A vendor-specific, human readable string that specifies how the value of this data item is calculated (optional).
Definition is non-localized and will often contain an equation that can be parsed by certain clients. Example: Definition ::= "(TempA - 25) + TempB".
Specifies the unit for the Analog Item value, e.g., DEGC, Hertz, Seconds (optional).
Defines the value range likely to be obtained in normal operation.
Defines the value range that can be returned by the instrument (optional).
Specifies the maximum precision that the server can maintain for the item based on restrictions in the target environment. For float and double values, specifies the number of digits after the decimal place. For DateTime values it indicates the minimum time difference in nanoseconds. For example, a ValuePrecision of 20 000 000 defines a precision of 20 ms. (optional).
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Represents metadata of an OPC UA Analog Item.