This ObjectType defines the information for the processing of DataSetMessages as mirror Variables. For each field of the DataSet a mirror Variable is created in the Subscriber AddressSpace. The SubscribedDataSetMirrorType is formally defined in Table 273.
Table 273 – SubscribedDataSetMirrorType definition
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Attribute |
Value |
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BrowseName |
SubscribedDataSetMirrorType |
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IsAbstract |
False |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
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Subtype of SubscribedDataSetType defined in 9.1.9.1. |
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Conformance Units |
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PubSub Model SubscribedDataSet Mirror |
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An Object of this type shall reference a mirror Object with HasComponent where the name of the Object is based on the ParentNodeName. The Method CreateDataSetMirror can be used to set the SubscribedDataSet into the mirror mode.
The mirror Object shall reference Variables for each DataSet field in the DataSetMetaData with HasComponent. The name, DataType, ValueRank and ArrayDimensions of the Variables shall match the settings for the corresponding DataSet field in the DataSetMetaData.
A Variable representing a field of the DataSet shall be created with the following rules
- TypeDefinition is BaseDataVariableType or a subtype.
- The Reference from the parent Node to the Variable is of type HasComponent.
- The initial AccessLevel of the Variables is CurrentRead.
- The RolePermissions is derived from the parent Node.
- The other Attribute values are taken from the FieldMetaData.
- The properties in the FieldMetaData are created as Properties of the Variable.
The DataTypes are created in the Subscriber from the DataSetMetaData if they do not exist. The NamespaceUri of the created DataTypes shall match the namespace contained in the DataSetMetaData.