Name

Type

Description

AttributeOperand

structure

Attribute of a Node in the AddressSpace.

nodeId

NodeId

NodeId of a Node from the type system.

alias

String

An optional parameter used to identify or refer to an alias. An alias is a symbolic name that can be used to alias this operand and use it in other locations in the filter structure.

browsePath

RelativePath

Browse path relative to the Node identified by the nodeId parameter. See 7.31 for the definition of RelativePath.

attributeId

IntegerId

Id of the Attribute. This shall be a valid AttributeId. The IntegerId is defined in 7.19. The IntegerIds for the Attributes are defined in OPC 10000-6.

indexRange

NumericRange

This parameter is used to identify a single element of an array or a single range of indexes for an array. The first element is identified by index 0 (zero).

The NumericRange type is defined in 7.27.

This parameter is not used if the specified Attribute is not an array. However, if the specified Attribute is an array and this parameter is not used, then all elements are to be included in the range. The parameter is null or empty if not used.