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 153. The ExtensibleParameter type is defined in 7.17.

Table 153 – NodeAttributes parameterTypeIds

Symbolic Id

Description

ObjectAttributes

Defines the Attributes for the Object NodeClass.

VariableAttributes

Defines the Attributes for the Variable NodeClass.

MethodAttributes

Defines the Attributes for the Method NodeClass.

ObjectTypeAttributes

Defines the Attributes for the ObjectType NodeClass.

VariableTypeAttributes

Defines the Attributes for the VariableType NodeClass.

ReferenceTypeAttributes

Defines the Attributes for the ReferenceType NodeClass.

DataTypeAttributes

Defines the Attributes for the DataType NodeClass.

ViewAttributes

Defines the Attributes for the View NodeClass.

GenericAttributes

Defines 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 154 defines the bit mask used in the NodeAttributes parameters to specify which Attributes are set by the Client.

Table 154 – Bit mask for specified Attributes

Field

Bit

Description

AccessLevel

0

Indicates if the AccessLevel Attribute is set.

ArrayDimensions

1

Indicates if the ArrayDimensions Attribute is set.

Reserved

2

Reserved to be consistent with WriteMask defined in OPC 10000-3.

ContainsNoLoops

3

Indicates if the ContainsNoLoops Attribute is set.

DataType

4

Indicates if the DataType Attribute is set.

Description

5

Indicates if the Description Attribute is set.

DisplayName

6

Indicates if the DisplayName Attribute is set.

EventNotifier

7

Indicates if the EventNotifier Attribute is set.

Executable

8

Indicates if the Executable Attribute is set.

Historizing

9

Indicates if the Historizing Attribute is set.

InverseName

10

Indicates if the InverseName Attribute is set.

IsAbstract

11

Indicates if the IsAbstract Attribute is set.

MinimumSamplingInterval

12

Indicates if the MinimumSamplingInterval Attribute is set.

Reserved

13

Reserved to be consistent with WriteMask defined in OPC 10000-3.

Reserved

14

Reserved to be consistent with WriteMask defined in OPC 10000-3.

Symmetric

15

Indicates if the Symmetric Attribute is set.

UserAccessLevel

16

Indicates if the UserAccessLevel Attribute is set.

UserExecutable

17

Indicates if the UserExecutable Attribute is set.

UserWriteMask

18

Indicates if the UserWriteMask Attribute is set.

ValueRank

19

Indicates if the ValueRank Attribute is set.

WriteMask

20

Indicates if the WriteMask Attribute is set.

Value

21

Indicates if the Value Attribute is set.

Reserved

22:32

Reserved for future use. Shall always be zero.

Table 155 defines the ObjectAttributes parameter.

Table 155 – ObjectAttributes

Name

Type

Description

ObjectAttributes

structure

Defines the Attributes for the Object NodeClass.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

eventNotifier

Byte

See OPC 10000-3 for the description of this Attribute.

Table 156 defines the VariableAttributes parameter.

Table 156 – VariableAttributes

Name

Type

Description

VariableAttributes

structure

Defines the Attributes for the Variable NodeClass

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

value

BaseDataType

See OPC 10000-3 for the description of this Attribute.

dataType

NodeId

See OPC 10000-3 for the description of this Attribute.

valueRank

Int32

See OPC 10000-3 for the description of this Attribute.

arrayDimensions

UInt32 []

See OPC 10000-3 for the description of this Attribute.

accessLevel

Byte

See OPC 10000-3 for the description of this Attribute.

userAccessLevel

Byte

See OPC 10000-3 for the description of this Attribute.

minimumSamplingInterval

Duration

See OPC 10000-3 for the description of this Attribute.

historizing

Boolean

See OPC 10000-3 for the description of this Attribute.

Table 157 defines the MethodAttributes parameter.

Table 157 – MethodAttributes

Name

Type

Description

MethodAttributes

structure

Defines the Attributes for the Method NodeClass

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

executable

Boolean

See OPC 10000-3 for the description of this Attribute.

userExecutable

Boolean

See OPC 10000-3 for the description of this Attribute.

Table 158 defines the ObjectTypeAttributes parameter.

Table 158 – ObjectTypeAttributes

Name

Type

Description

ObjectTypeAttributes

structure

Defines the Attributes for the ObjectType NodeClass.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

isAbstract

Boolean

See OPC 10000-3 for the description of this Attribute.

Table 159 defines the VariableTypeAttributes parameter.

Table 159 – VariableTypeAttributes

Name

Type

Description

VariableTypeAttributes

structure

Defines the Attributes for the VariableType NodeClass

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

value

BaseDataType

See OPC 10000-3 for the description of this Attribute.

dataType

NodeId

See OPC 10000-3 for the description of this Attribute.

valueRank

Int32

See OPC 10000-3 for the description of this Attribute.

arrayDimensions

UInt32 []

See OPC 10000-3 for the description of this Attribute.

isAbstract

Boolean

See OPC 10000-3 for the description of this Attribute.

Table 160 defines the ReferenceTypeAttributes parameter.

Table 160 – ReferenceTypeAttributes

Name

Type

Description

ReferenceTypeAttributes

structure

Defines the Attributes for the ReferenceType NodeClass.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

isAbstract

Boolean

See OPC 10000-3 for the description of this Attribute.

symmetric

Boolean

See OPC 10000-3 for the description of this Attribute.

inverseName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

Table 161 defines the DataTypeAttributes parameter.

Table 161 – DataTypeAttributes

Name

Type

Description

DataTypeAttributes

structure

Defines the Attributes for the DataType NodeClass.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

isAbstract

Boolean

See OPC 10000-3 for the description of this Attribute.

Table 162 defines the ViewAttributes parameter.

Table 162 – ViewAttributes

Name

Type

Description

ViewAttributes

structure

Defines the Attributes for the View NodeClass.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

containsNoLoops

Boolean

See OPC 10000-3 for the description of this Attribute.

eventNotifier

Byte

See OPC 10000-3 for the description of this Attribute.

This structure should be used instead of the NodeClass specific structures defined in the other sub sections of 7.24 since it allows the handling of additional Attributes defined in future specification versions.

Table 163 defines the GenericAttributes parameter.

Table 163 – GenericAttributes

Name

Type

Description

GenericAttributes

structure

Defines a generic structure for passing in any number of Attributes.

specifiedAttributes

UInt32

A bit mask that indicates which fields contain valid values.

A field shall be ignored if the corresponding bit is set to 0.

The bit values are defined in Table 154.

displayName

LocalizedText

See OPC 10000-3 for the description of this Attribute.

description

LocalizedText

See OPC 10000-3 for the description of this Attribute.

writeMask

UInt32

See OPC 10000-3 for the description of this Attribute.

userWriteMask

UInt32

See OPC 10000-3 for the description of this Attribute.

attributeValues

GenericAttributeValue []

Defines one attributeId and value combination.

attributeId

IntegerId

Id of the Attribute specified. AttributeIds shall be unique in the list and shall not repeat the common Attributes in the structure.

value

BaseDataType

Value of the Attribute specified.