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OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.8.3 DataType NodeClass

applied to subtypes of the OptionSet DataType . It optionally provides the length, in bytes, of the OptionSet. The provided length shall at least provide enough bytes that all bits defined ... bits are defined by the OptionSetValues , the OptionSetLength shall be at least 3 bytes. The DataType NodeClass inherits the base Attributes from the Base NodeClass defined in 5.2 . The IsAbstract