7.24.1 Overview

The AddNodes Service allows specifying the Attributes for the Nodes to add. The NodeAttributes is an extensible parameter whose structure depends on the type of the NodeClass being added. It identifies the NodeClass that defines the structure of the Attributes that follow. The parameterTypeIds are defined in Table 149. The ExtensibleParameter type is defined in 7.17.

Table 149 – NodeAttributes parameterTypeIds
Symbolic IdDescription
ObjectAttributesDefines the Attributes for the Object NodeClass.
VariableAttributesDefines the Attributes for the Variable NodeClass.
MethodAttributesDefines the Attributes for the Method NodeClass.
ObjectTypeAttributesDefines the Attributes for the ObjectType NodeClass.
VariableTypeAttributesDefines the Attributes for the VariableType NodeClass.
ReferenceTypeAttributesDefines the Attributes for the ReferenceType NodeClass.
DataTypeAttributesDefines the Attributes for the DataType NodeClass.
ViewAttributesDefines the Attributes for the View NodeClass.
GenericAttributesDefines an id and value list for passing in any number of Attribute values. It should be used instead of the NodeClass specific structures since it allows the handling of additional Attributes defined in future specification versions.

Table 150 defines the bit mask used in the NodeAttributes parameters to specify which Attributes are set by the Client.

Table 150 – Bit mask for specified Attributes
FieldBitDescription
AccessLevel0Indicates if the AccessLevel Attribute is set.
ArrayDimensions1Indicates if the ArrayDimensions Attribute is set.
Reserved2Reserved to be consistent with WriteMask defined in OPC 10000-3.
ContainsNoLoops3Indicates if the ContainsNoLoops Attribute is set.
DataType4Indicates if the DataType Attribute is set.
Description5Indicates if the Description Attribute is set.
DisplayName6Indicates if the DisplayName Attribute is set.
EventNotifier7Indicates if the EventNotifier Attribute is set.
Executable8Indicates if the Executable Attribute is set.
Historizing9Indicates if the Historizing Attribute is set.
InverseName10Indicates if the InverseName Attribute is set.
IsAbstract11Indicates if the IsAbstract Attribute is set.
MinimumSamplingInterval12Indicates if the MinimumSamplingInterval Attribute is set.
Reserved13Reserved to be consistent with WriteMask defined in OPC 10000-3.
Reserved14Reserved to be consistent with WriteMask defined in OPC 10000-3.
Symmetric15Indicates if the Symmetric Attribute is set.
UserAccessLevel16Indicates if the UserAccessLevel Attribute is set.
UserExecutable17Indicates if the UserExecutable Attribute is set.
UserWriteMask18Indicates if the UserWriteMask Attribute is set.
ValueRank19Indicates if the ValueRank Attribute is set.
WriteMask20Indicates if the WriteMask Attribute is set.
Value21Indicates if the Value Attribute is set.
Reserved22:32Reserved for future use. Shall always be zero.