AttributeOperand QML Type

The OPC UA AttributeOperand type. More...

Import Statement: import QtOpcUa .
Since: QtOpcUa 5.13

Properties

Detailed Description

The AttributeOperand is defined in OPC-UA part 4, 7.4.4.4. It has the same purpose as SimpleAttributeOperand but has more configurable options.

Property Documentation

alias : string

Alias name for the operand. This allows using this instance as operand for other operations in the filter.


browsePath : list<OpcUaNodeId>

Browse path to the node holding the attribute.



indexRange : string

Index range string used to identify a single value or subset of the attribute's value.

 import QtOpcUa 5.13 as QtOpcUa

 QtOpcUa.AttributeOperand {
     ...
     indexRange: "0:2"
 }

nodeAttribute : Constants.NodeAttribute

Attribute of the node browsePath is pointing to. The default value is Constants.NodeAttribute.Value.

 import QtOpcUa 5.13 as QtOpcUa

 QtOpcUa.AttributeOperand {
     ...
     nodeAttribute: QtOpcUa.Constants.NodeAttribute.Value
 }

typeId : string

Node id of the type definition node. The operand will be of the type or one of its subtypes.

 import QtOpcUa 5.13 as QtOpcUa

 QtOpcUa.AttributeOperand {
     ...
     typeId: "ns=0;i=2041"
 }