This Structure DataTypeis the abstract base type used to provide OPC UA DataTypedefinitions for an OPC UA Binary encoded byte blob used outside an OPC UA Server AddressSpace.

The DataTypeSchemaHeaderis formally defined in Table A.1.

Table A.1– DataTypeSchemaHeader Structure

Name

Type

Description

DataTypeSchemaHeader

Structure

namespaces

String[]

Defines an array of namespace URIs. The index into the array is referred to as NamespaceIndex. The NamespaceIndexis used in NodeIdsand QualifiedNames, rather than the longer namespace URI. NamespaceIndex 0 is reserved for the OPC UA namespace and it is not included in this array.

The array contains the namespaces used in the data that follows the DataTypeSchemaHeader. The index used in NodeIdand QualifiedNamesidentify an element in this list. The first entry in this array maps to NamespaceIndex 1.

structureDataTypes

StructureDescription[]

Description of Structure and Union DataTypesused in the data that follows the DataTypeSchemaHeader. This includes nested Structures.

DataType NodeIds for Structure DataTypesused in the data refer to entries in this array.

The StructureDescription DataTypeis defined in A.1.3.

enumDataTypes

EnumDescription[]

Description of Enumeration or OptionSet DataTypesused in in the data that follows the DataTypeSchemaHeader.

DataType NodeIds for Enumeration or OptionSet DataTypesused in the data refer to entries in this array.

The EnumDescription DataTypeis defined in A.1.4.

simpleDataTypes

SimpleTypeDescription[]

Description of DataTypesderived from built-in DataTypes. This excludes OptionSet DataTypes.

The DataTypeSchemaHeader Structurerepresentation in the AddressSpaceis defined in Table A.2.

Table A.2– DataTypeSchemaHeader Definition

Attributes

Value

BrowseName

DataTypeSchemaHeader

IsAbstract

True

References

NodeClass

BrowseName

IsAbstract

Subtype of Structure defined in OPC 10000-5.

HasSubtype

DataType

UABinaryFileDataType

False

This Structure DataTypeis the abstract base type for all DataTypedescriptions containing the DataType NodeIdand the definition for custom DataTypeslike Structures and Enumerations. The DataTypeDescriptionis formally defined in Table A.3.

Table A.3– DataTypeDescription Structure

Name

Type

Description

DataTypeDescription

Structure

dataTypeId

NodeId

The NodeIdof the DataType.

name

QualifiedName

A unique name for the data type.

The DataTypeDescription Structurerepresentation in the AddressSpace is defined in Table A.4.

Table A.4– DataTypeDescription Definition

Attributes

Value

BrowseName

DataTypeDescription

IsAbstract

True

References

NodeClass

BrowseName

IsAbstract

Subtype of Structure defined in OPC 10000-5.

HasSubtype

DataType

StructureDescription

FALSE

HasSubtype

DataType

EnumDescription

FALSE

This Structure DataTypeprovides the concrete DataTypeDescriptionfor Structure DataTypes. It is a subtype of the DataTypeDescription DataType. The StructureDescriptionis formally defined in Table A.5.

Table A.5– StructureDescription Structure

Name

Type

Description

StructureDescription

Structure

structureDefinition

StructureDefinition

The definition of the structure DataType.

The StructureDefinition DataTypeis defined in OPC 10000-3.

Its representation in the AddressSpace is defined in Table A.6.

Table A.6– StructureDescription Definition

Attributes

Value

BrowseName

StructureDescription

IsAbstract

False

Subtype of DataTypeDescription defined in 6.2.2.1.5.

This Structure DataTypeprovides the concrete DataTypeDescriptionfor Enumeration DataTypes. It is a subtype of the DataTypeDescription DataType. The EnumDescriptionis formally defined in Table A.7.

Table A.7– EnumDescription Structure

Name

Type

Description

EnumDescription

Structure

enumDefinition

EnumDefinition

The definition of the enumeration DataType.

The EnumDefinition DataTypeis defined in OPC 10000-3.

builtInType

Byte

The builtInTypeindicates if the DataTypeis an Enumerationor an OptionSet. If the builtInTypeis Int32, the DataTypeis an Enumeration. If the builtInTypeis one of the UInteger DataTypesor ExtensionObject, the DataTypeis an OptionSet.

Its representation in the AddressSpace is defined in Table A.8.

Table A.8– EnumDescription Definition

Attributes

Value

BrowseName

EnumDescription

IsAbstract

False

Subtype of DataTypeDescription defined in 6.2.2.1.5.

This Structure DataTypeprovides the information for DataTypesderived from built-in DataTypes. It is a subtype of Structure. The SimpleTypeDescriptionis formally defined in Table A.9.

Table A.9– SimpleTypeDescription Structure

Name

Type

Description

SimpleTypeDescription

Structure

baseDataType

NodeId

The base DataTypeof the simple DataType.

builtInType

Byte

The builtInTypeused for the encoding of the simple DataType.