Reference

OpcTwoStateVariableNode Members

Type

OpcTwoStateVariableNode

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Inherits members from OpcStateVariableNode, OpcTextVariableNode, OpcVariableNode, OpcInstanceNode, OpcNode.

Constructors

OpcTwoStateVariableNode

10 overloads

Overload	Description
OpcTwoStateVariableNode(OpcName)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified.
OpcTwoStateVariableNode(OpcName, OpcText)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified with the initial value given by value.
OpcTwoStateVariableNode(OpcName, OpcNodeId)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified.
OpcTwoStateVariableNode(OpcName, OpcNodeId, OpcText)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified with the initial value given by value.
OpcTwoStateVariableNode(IOpcNode, OpcName)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified as a child node of the parent node given.
OpcTwoStateVariableNode(IOpcNode, OpcName, OpcText)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified with the initial value defined by value as a child node of the parent node given.
OpcTwoStateVariableNode(IOpcNode, OpcName, OpcNodeId)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified as a child node of the parent node given.
OpcTwoStateVariableNode(IOpcNode, OpcName, OpcNodeId, OpcText)	Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified with the initial value defined by value as a child node of the parent node given.
OpcTwoStateVariableNode(TwoStateVariableState)protected · since v2.50	Initializes a new instance of the OpcTwoStateVariableNode class using the content as the instance to wrap.
OpcTwoStateVariableNode(TwoStateVariableState, OpcNodeModel)protected · since v2.50	Initializes a new instance of the OpcTwoStateVariableNode class using the content as the instance to wrap.

OpcTwoStateVariableNode(OpcName)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified.

public OpcTwoStateVariableNode(OpcName name)

Public Sub New(name As OpcName)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new two state variable node can be accessed.

OpcTwoStateVariableNode(OpcName, OpcText)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified with the initial value given by value.

public OpcTwoStateVariableNode(OpcName name, OpcText value)

Public Sub New(name As OpcName, value As OpcText)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new two state variable node can be accessed.
value	OpcText	The initial value of the new two state variable node.

OpcTwoStateVariableNode(OpcName, OpcNodeId)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified.

public OpcTwoStateVariableNode(OpcName name, OpcNodeId id)

Public Sub New(name As OpcName, id As OpcNodeId)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new two state variable node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new two state variable node can be identified and accessed.

OpcTwoStateVariableNode(OpcName, OpcNodeId, OpcText)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified with the initial value given by value.

public OpcTwoStateVariableNode(OpcName name, OpcNodeId id, OpcText value)

Public Sub New(name As OpcName, id As OpcNodeId, value As OpcText)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new two state variable node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new two state variable node can be identified and accessed.
value	OpcText	The initial value of the new two state variable node.

OpcTwoStateVariableNode(IOpcNode, OpcName)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified as a child node of the parent node given.

public OpcTwoStateVariableNode(IOpcNode parent, OpcName name)

Public Sub New(parent As IOpcNode, name As OpcName)

Parameters

Name	Type	Description
parent	IOpcNode	The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name	OpcName	The OpcName through that the new two state variable node can be accessed.

OpcTwoStateVariableNode(IOpcNode, OpcName, OpcText)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name specified with the initial value defined by value as a child node of the parent node given.

public OpcTwoStateVariableNode(IOpcNode parent, OpcName name, OpcText value)

Public Sub New(parent As IOpcNode, name As OpcName, value As OpcText)

Parameters

Name	Type	Description
parent	IOpcNode	The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name	OpcName	The OpcName through that the new two state variable node can be accessed.
value	OpcText	The initial value of the new two state variable node.

OpcTwoStateVariableNode(IOpcNode, OpcName, OpcNodeId)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified as a child node of the parent node given.

public OpcTwoStateVariableNode(IOpcNode parent, OpcName name, OpcNodeId id)

Public Sub New(parent As IOpcNode, name As OpcName, id As OpcNodeId)

Parameters

Name	Type	Description
parent	IOpcNode	The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name	OpcName	The OpcName through that the new two state variable node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new two state variable node can be identified and accessed.

OpcTwoStateVariableNode(IOpcNode, OpcName, OpcNodeId, OpcText)

Initializes a new instance of the OpcTwoStateVariableNode class accessible by the name and id specified with the initial value defined by value as a child node of the parent node given.

public OpcTwoStateVariableNode(
    IOpcNode parent,
    OpcName name,
    OpcNodeId id,
    OpcText value)

Public Sub New(
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId,
    value As OpcText)

Parameters

Name	Type	Description
parent	IOpcNode	The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name	OpcName	The OpcName through that the new two state variable node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new two state variable node can be identified and accessed.
value	OpcText	The initial value of the new two state variable node.

OpcTwoStateVariableNode(TwoStateVariableState)

protected · since v2.50

Initializes a new instance of the OpcTwoStateVariableNode class using the content as the instance to wrap.

protected OpcTwoStateVariableNode(TwoStateVariableState content)

Protected Sub New(content As TwoStateVariableState)

Parameters

Name	Type	Description
content	TwoStateVariableState	The TwoStateVariableState to wrap.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcTwoStateVariableNode(TwoStateVariableState, OpcNodeModel)

protected · since v2.50

Initializes a new instance of the OpcTwoStateVariableNode class using the content as the instance to wrap.

protected OpcTwoStateVariableNode(
    TwoStateVariableState content,
    OpcNodeModel model)

Protected Sub New(content As TwoStateVariableState, model As OpcNodeModel)

Parameters

Name	Type	Description
content	TwoStateVariableState	The TwoStateVariableState to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

Properties

DefaultTypeDefinitionId

protected · override

Gets the default identifier which identifies the node that defines the underlying node type from that this OpcInstanceNode has been created.

protected override OpcNodeId DefaultTypeDefinitionId { get; }

Protected Overrides ReadOnly Property DefaultTypeDefinitionId As OpcNodeId

Property value

OpcNodeId

The OpcNodeId of the type node from that this OpcInstanceNode has been created from. These type node defines the typical structure of an instance node of its type definition. If there exists no specific type definition node a null reference (Nothing in Visual Basic).

Overrides

DefaultTypeDefinitionId

EffectiveTransitionTime

Gets or sets a value which specifies the time when the current state or one of its substates was entered.

public DateTime EffectiveTransitionTime { get; set; }

Public Property EffectiveTransitionTime As Date

Property value

DateTime

The effective DateTime of the time the current state has been entered.

Remarks

If, for example, a level alarm is active and - while active - switches several times between high and highhigh, then the TransitionTime stays at the point in time where the alarm became active whereas the EffectiveTransitionTime changes with each shift of a sub state.

EffectiveTransitionTimeNode

Gets the OpcPropertyNode<T> of the EffectiveTransitionTime property.

public OpcPropertyNode<DateTime> EffectiveTransitionTimeNode { get; }

Public ReadOnly Property EffectiveTransitionTimeNode As OpcPropertyNode(Of Date)

Property value

OpcPropertyNode<DateTime>

An instance of the OpcPropertyNode<T> class.

FalseState

Gets or sets a value which contains a human readable representation for the variable value when its VariableId property has the value true.

public OpcText FalseState { get; set; }

Public Property FalseState As OpcText

Property value

OpcText

The human readable representation for the value true.

FalseStateNode

Gets the OpcTextPropertyNode of the FalseState property.

public OpcTextPropertyNode FalseStateNode { get; }

Public ReadOnly Property FalseStateNode As OpcTextPropertyNode

Property value

OpcTextPropertyNode

An instance of the OpcTextPropertyNode class.

TransitionTime

Gets or sets a value which specifies when the current state was entered.

public DateTime TransitionTime { get; set; }

Public Property TransitionTime As Date

Property value

DateTime

The DateTime of the time the current state was entered.

TransitionTimeNode

Gets the OpcPropertyNode<T> of the TransitionTime property.

public OpcPropertyNode<DateTime> TransitionTimeNode { get; }

Public ReadOnly Property TransitionTimeNode As OpcPropertyNode(Of Date)

Property value

OpcPropertyNode<DateTime>

An instance of the OpcPropertyNode<T> class.

TrueState

Gets or sets a value which contains a human readable representation for the variable value when its VariableId property has the value true.

public OpcText TrueState { get; set; }

Public Property TrueState As OpcText

Property value

OpcText

The human readable representation for the value true.

TrueStateNode

Gets the OpcTextPropertyNode of the TrueState property.

public OpcTextPropertyNode TrueStateNode { get; }

Public ReadOnly Property TrueStateNode As OpcTextPropertyNode

Property value

OpcTextPropertyNode

An instance of the OpcTextPropertyNode class.

VariableId

Gets or sets a node identifier which uniquely identifies the current state within the state machine.

public bool? VariableId { get; set; }

Public Property VariableId As Boolean?

Property value

Nullable<Boolean>

A bool which uniquely identifies the current state within the state machine.

Methods

InitializeDefaults

protected · override

Initializes the default values used by the OpcTwoStateVariableNode.

protected override void InitializeDefaults()

Protected Overrides Sub InitializeDefaults()

Overrides

InitializeDefaults

Remarks

This method is used to ensure the availability of appropriate node specific default values. For more information like when this method is to be overwritten see InitializeDefaults.