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Data Access

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This section describes the information model associated with Data Access (DA). It particularly includes additional VariableTypes and complemental descriptions of the NodeClasses and Attributes needed for Data Access, additional Properties and other information and behaviour.

The complete address space model, including all NodeClasses and Attributes, is described in section "Address Space. The services to detect and access data are described in section Services.

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Part 8: OPC UA Specification - Data Access: specifies the use of OPC UA for data access.