Reference

OpcAddVariableNode Class

abstract · since v2.7

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Members

OpcAddVariableNode Members

Also in

Opc.UaFx.Client

Defines an abstract base class for a single command of the IOpcAddNodesService used to add one variable node (nodes of the category Variable).

Syntax

public abstract class OpcAddVariableNode : OpcAddInstanceNode

Public MustInherit Class OpcAddVariableNode
    Inherits OpcAddInstanceNode

Inheritance

Object → OpcServiceCommand → OpcNodeServiceCommand → OpcAddNode → OpcAddInstanceNode → OpcAddVariableNode

Derived types

• OpcAddDataItemNode
• OpcAddDataVariableNode
• OpcAddPropertyNode
• OpcAddPropertyNode<T>

Constructors

Name	Description
OpcAddVariableNodeprotected · 20 overloads	Initializes a new instance of the OpcAddVariableNode class using the specified type of variable node to add, which shall be accessible by the name defined.

Properties

Name	Description
AccessLevel	Gets or sets a value which indicates in which ways the Value attribute of the variable node can be accessed (read/write) and if it provides current and/or historic data.
ArrayDimensionssince v2.9	Gets the number/lengths of dimensions for an array Value with one or more fixed dimensions.
DataTypevirtual	Gets or sets a value which defines a pre-defined used DataTypeId as one of the members defined by the OpcDataType enumeration to simplify querying standard data types.
DataTypeId	Gets or stets the identifier which identifies the node that defines the type of data represented by the variable node.
IsHistorizing	Gets or sets a value indicating whether the server is actively collecting data for the history of the variable.
Type	Gets value indicating the predefined underlying type definition the new node will represent an instance of.
UserAccessLevel	Gets or sets a value which indicates in which ways the Value attribute of the variable node can be accessed (read/write) and if it provides current and/or historic data taking user access rights into account.
Value	Gets or sets the value of the variable node which may be simple or complex.
ValueRank	Gets or sets a value which indicates whether the value attribute of the variable is an array and how many dimensions the array has.

Methods

Name	Description
OfTypestatic	Retrieves an instance which represents the definition of a variable type that can be used to define OpcAddVariableNode command instances using the type of variable node represented by the OpcAddVariableNode.TypeDefinition instance provided.

Inherits members from OpcAddInstanceNode, OpcAddNode, OpcNodeServiceCommand, OpcServiceCommand.

Applies to

Package	Versions
Opc.UaFx.Advanced	v2.7–v2.59