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Scope: Core (OPC-10000-*) All specs

4 result(s) for Unions

OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.1.7 Structures and Unions

Structures and Unions Structures are sequences of name value pairs defined by the DataTypeDefinition Attribute in OPC 10000-3 . Each DataEncoding describes how to use the DataTypeDefinition to serialize Structures ... serialized as an ExtensionObject if a field has a DataType set explicitly to Structure. Unions are special subtypes of Structure where only one field value is encoded. All subtypes
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.2.8 Unions

Unions Unions are encoded as a switch field preceding one of the possible fields. The encoding for the selected field is determined by the data type for the field
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.4.8 Unions

Unions Unions shall be encoded as JSON objects as shown in Table 48 . Note that JSON objects are unordered sets of name-value pairs. The order specified by the DataTypeDefinition
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

H.10 Unions

H.10 Unions Unions shall be encoded as JSON objects as shown in Table H.8 for the ReversibleEncoding . Note that JSON objects are unordered sets of name-value pairs. The order