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OpcReadNode Class

Namespace: Opc.UaFx
Assemblies: Opc.UaFx.Advanced.dll

Defines a single command of the IOpcReadNodesService.

C# 

public class OpcReadNode : OpcNodeAttributeServiceCommand


Inheritance Object › OpcServiceCommand › OpcNodeServiceCommand › OpcNodeAttributeServiceCommand › OpcReadNode

Constructors

Name Description
OpcReadNode(Int32) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute.
OpcReadNode(Int32, Int32) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the Value attribute.
OpcReadNode(Int32, Int32, OpcAttribute) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the attribute.
OpcReadNode(Int32, Int32, OpcAttribute, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the attribute according to the range.
OpcReadNode(Int32, Int32, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the Value attribute according to the range.
OpcReadNode(Int32, OpcAttribute) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute.
OpcReadNode(Int32, OpcAttribute, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute according to the range.
OpcReadNode(Int32, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute according to the range.
OpcReadNode(OpcNodeId) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute.
OpcReadNode(OpcNodeId, OpcAttribute) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute.
OpcReadNode(OpcNodeId, OpcAttribute, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute according to the range.
OpcReadNode(OpcNodeId, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute according to the range.
OpcReadNode(String) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute.
OpcReadNode(String, Int32) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the Value attribute.
OpcReadNode(String, Int32, OpcAttribute) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the attribute.
OpcReadNode(String, Int32, OpcAttribute, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the attribute according to the range.
OpcReadNode(String, Int32, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId and namespaceIndex to read the Value attribute according to the range.
OpcReadNode(String, OpcAttribute) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute.
OpcReadNode(String, OpcAttribute, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the attribute according to the range.
OpcReadNode(String, OpcRange) Initializes a new instance of the OpcReadNode class using the specified nodeId to read the Value attribute according to the range.

Properties

Name Description
Attribute Gets the OpcAttribute used to setup this command and which is used by the node attribute orientated service to operate on the node identified by the NodeId.
(Inherited from OpcNodeAttributeServiceCommand)
NodeId Gets the node identifier of the node on which a node orientated service have to operate on.
(Inherited from OpcNodeServiceCommand)
Range Gets the OpcRange used to identify a single element or range of elements in the Attribute.
SupportsNullNodeId Gets a value indicating whether the OpcNodeServiceCommand supports instances of the OpcNodeId class its IsNull provides a value equals to the value true.
(Inherited from OpcNodeServiceCommand)
Tag Gets or sets the object that contains additional user data about the command.
(Inherited from OpcServiceCommand)

Methods

Name Description
DenyNullIdentifier(OpcNodeId, String) Verifies whether the value is a null identifier by checking the IsNull property.
(Inherited from OpcNodeServiceCommand)