If the Variable has no children, the Variable is represented by a single Structure field with the BrowseName of the Variable as field name. The SerializationFieldDataType of the Variable equals the DataType of the Variable. As shown in Figure 11, the Variable V1 is mapped into the Structure field V1 with the SerializationFieldDataType V1DataType (left column with IncludeStatus, IncludeSourceTimestamp and IncludeDictionaryReference Properties equal to False).

Figure 11 – IncludeStatus and IncludeSourceTimestamp Properties Example for Variable without child Node

If some of the IncludeStatus, IncludeSourceTimestamp and IncludeDictionaryReference Properties (“Include-Properties”) are True, the Variable is also represented by a single Structure field, but the SerializationFieldDataType is a Structure DataType.

This Structure contains a “Value” field which has the same DataType as the Value of the Variable. Dependent on the Value of the “Include-Properties”, the Structure can contain a “Status” field with the DataType StatusCode, a “SourceTimestamp” field with the DataType UtcTime and an entry in the DictionaryReferences array field as shown in Figure 11 (middle and right column, V1Type, examples for the IncludeStatus, IncludeSourceTimestamp and IncludeDictionaryReference Properties).

Note: The SerializationValue DataType for a SerializationScope only consisting of one Variable and a SerializationScope consisting of one Object with this Variable as child Node are identical.