Reference

OpcLimitAlarmNode Members

Type

OpcLimitAlarmNode

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Inherits members from OpcAlarmConditionNode, OpcAcknowledgeableConditionNode, OpcConditionNode, OpcEventNode, OpcObjectNode, OpcInstanceNode, OpcNode.

Constructors

OpcLimitAlarmNode

18 overloads

Overload	Description
OpcLimitAlarmNode(OpcName)since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified.
OpcLimitAlarmNode(OpcName, OpcLimitAlarmStates)	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and supportedLimits specified.
OpcLimitAlarmNode(OpcName, OpcNodeId)since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified.
OpcLimitAlarmNode(OpcName, OpcNodeId, OpcLimitAlarmStates)	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id with the supportedLimits specified.
OpcLimitAlarmNode(IOpcNode, OpcName)since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified as a child node of the parent node given.
OpcLimitAlarmNode(IOpcNode, OpcName, OpcLimitAlarmStates)	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified as a child node of the parent node given.
OpcLimitAlarmNode(IOpcNode, OpcName, OpcNodeId)since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified as a child node of the parent node given.
OpcLimitAlarmNode(IOpcNode, OpcName, OpcNodeId, OpcLimitAlarmStates)	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified as a child node of the parent node given.
OpcLimitAlarmNode(LimitAlarmState)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class using the content as the instance to wrap.
OpcLimitAlarmNode(LimitAlarmState, OpcNodeModel)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class using the content as the instance to wrap.
OpcLimitAlarmNode(OpcNodeModel, OpcName)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified.
OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcLimitAlarmStates)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and supportedLimits specified.
OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcNodeId)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified.
OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcNodeId, OpcLimitAlarmStates)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id with the supportedLimits specified.
OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified as a child node of the parent node given.
OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcLimitAlarmStates)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name specified as a child node of the parent node given.
OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified as a child node of the parent node given.
OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId, OpcLimitAlarmStates)protected · since v2.50	Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id specified as a child node of the parent node given.

OpcLimitAlarmNode(OpcName)

since v2.50

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

public OpcLimitAlarmNode(OpcName name)

Public Sub New(name As OpcName)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new limit alarm node can be accessed.

OpcLimitAlarmNode(OpcName, OpcLimitAlarmStates)

Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and supportedLimits specified.

public OpcLimitAlarmNode(OpcName name, OpcLimitAlarmStates supportedLimits)

Public Sub New(name As OpcName, supportedLimits As OpcLimitAlarmStates)

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new limit alarm node can be accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(OpcName, OpcNodeId)

since v2.50

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

public OpcLimitAlarmNode(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 limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.

OpcLimitAlarmNode(OpcName, OpcNodeId, OpcLimitAlarmStates)

Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id with the supportedLimits specified.

public OpcLimitAlarmNode(
    OpcName name,
    OpcNodeId id,
    OpcLimitAlarmStates supportedLimits)

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

Parameters

Name	Type	Description
name	OpcName	The OpcName through that the new limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(IOpcNode, OpcName)

since v2.50

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

public OpcLimitAlarmNode(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 limit alarm node can be accessed.

OpcLimitAlarmNode(IOpcNode, OpcName, OpcLimitAlarmStates)

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

public OpcLimitAlarmNode(
    IOpcNode parent,
    OpcName name,
    OpcLimitAlarmStates supportedLimits)

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

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 limit alarm node can be accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(IOpcNode, OpcName, OpcNodeId)

since v2.50

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

public OpcLimitAlarmNode(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 limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.

OpcLimitAlarmNode(IOpcNode, OpcName, OpcNodeId, OpcLimitAlarmStates)

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

public OpcLimitAlarmNode(
    IOpcNode parent,
    OpcName name,
    OpcNodeId id,
    OpcLimitAlarmStates supportedLimits)

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

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 limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(LimitAlarmState)

protected · since v2.50

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

protected OpcLimitAlarmNode(LimitAlarmState content)

Protected Sub New(content As LimitAlarmState)

Parameters

Name	Type	Description
content	LimitAlarmState	The LimitAlarmState to wrap.

Exceptions

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

OpcLimitAlarmNode(LimitAlarmState, OpcNodeModel)

protected · since v2.50

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

protected OpcLimitAlarmNode(LimitAlarmState content, OpcNodeModel model)

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

Parameters

Name	Type	Description
content	LimitAlarmState	The LimitAlarmState 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).

OpcLimitAlarmNode(OpcNodeModel, OpcName)

protected · since v2.50

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

protected OpcLimitAlarmNode(OpcNodeModel model, OpcName name)

Protected Sub New(model As OpcNodeModel, name As OpcName)

Parameters

Name	Type	Description
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.
name	OpcName	The OpcName through that the new limit alarm node can be accessed.

OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcLimitAlarmStates)

protected · since v2.50

Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and supportedLimits specified.

protected OpcLimitAlarmNode(
    OpcNodeModel model,
    OpcName name,
    OpcLimitAlarmStates supportedLimits)

Protected Sub New(
    model As OpcNodeModel,
    name As OpcName,
    supportedLimits As OpcLimitAlarmStates)

Parameters

Name	Type	Description
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.
name	OpcName	The OpcName through that the new limit alarm node can be accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcNodeId)

protected · since v2.50

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

protected OpcLimitAlarmNode(OpcNodeModel model, OpcName name, OpcNodeId id)

Protected Sub New(model As OpcNodeModel, name As OpcName, id As OpcNodeId)

Parameters

Name	Type	Description
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.
name	OpcName	The OpcName through that the new limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.

OpcLimitAlarmNode(OpcNodeModel, OpcName, OpcNodeId, OpcLimitAlarmStates)

protected · since v2.50

Initializes a new instance of the OpcLimitAlarmNode class accessible by the name and id with the supportedLimits specified.

protected OpcLimitAlarmNode(
    OpcNodeModel model,
    OpcName name,
    OpcNodeId id,
    OpcLimitAlarmStates supportedLimits)

Protected Sub New(
    model As OpcNodeModel,
    name As OpcName,
    id As OpcNodeId,
    supportedLimits As OpcLimitAlarmStates)

Parameters

Name	Type	Description
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.
name	OpcName	The OpcName through that the new limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName)

protected · since v2.50

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

protected OpcLimitAlarmNode(OpcNodeModel model, IOpcNode parent, OpcName name)

Protected Sub New(model As OpcNodeModel, parent As IOpcNode, name As OpcName)

Parameters

Name	Type	Description
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.
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 limit alarm node can be accessed.

OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcLimitAlarmStates)

protected · since v2.50

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

protected OpcLimitAlarmNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcLimitAlarmStates supportedLimits)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    supportedLimits As OpcLimitAlarmStates)

Parameters

Name	Type	Description
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.
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 limit alarm node can be accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId)

protected · since v2.50

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

protected OpcLimitAlarmNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcNodeId id)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId)

Parameters

Name	Type	Description
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.
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 limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.

OpcLimitAlarmNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId, OpcLimitAlarmStates)

protected · since v2.50

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

protected OpcLimitAlarmNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcNodeId id,
    OpcLimitAlarmStates supportedLimits)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId,
    supportedLimits As OpcLimitAlarmStates)

Parameters

Name	Type	Description
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.
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 limit alarm node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new limit alarm node can be identified and accessed.
supportedLimits	OpcLimitAlarmStates	One or more members defined by the OpcLimitAlarmStates enumeration identifying the limits defined by the alarm.

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

HighHighLimit

Gets or sets a value which indicates the high high limit of a value to test for the alarm condition.

public double HighHighLimit { get; set; }

Public Property HighHighLimit As Double

Property value

Double

The optional high high limit to test.

Remarks

The property is optional but at least one of the limit properties is required to apply limits to the alarm condition. For cases where an underlying system cannot provide the actual value of a limit, the limit property will still be provided, but will have its access level set to not readable. It is assumed that the limits are described using the same engineering unit that is assigned to the variable that is the source of the alarm. For rate of change limit alarms, it is assumed this rate is units per second unless otherwise specified.

HighHighLimitNode

Gets the OpcPropertyNode<T> of the HighHighLimit property.

public OpcPropertyNode<double> HighHighLimitNode { get; }

Public ReadOnly Property HighHighLimitNode As OpcPropertyNode(Of Double)

Property value

OpcPropertyNode<Double>

An instance of the OpcPropertyNode<T> class.

HighLimit

Gets or sets a value which indicates the high limit of a value to test for the alarm condition.

public double HighLimit { get; set; }

Public Property HighLimit As Double

Property value

Double

The optional high limit to test.

Remarks

The property is optional but at least one of the limit properties is required to apply limits to the alarm condition. For cases where an underlying system cannot provide the actual value of a limit, the limit property will still be provided, but will have its access level set to not readable. It is assumed that the limits are described using the same engineering unit that is assigned to the variable that is the source of the alarm. For rate of change limit alarms, it is assumed this rate is units per second unless otherwise specified.

HighLimitNode

Gets the OpcPropertyNode<T> of the HighLimit property.

public OpcPropertyNode<double> HighLimitNode { get; }

Public ReadOnly Property HighLimitNode As OpcPropertyNode(Of Double)

Property value

OpcPropertyNode<Double>

An instance of the OpcPropertyNode<T> class.

LowLimit

Gets or sets a value which indicates the low limit of a value to test for the alarm condition.

public double LowLimit { get; set; }

Public Property LowLimit As Double

Property value

Double

The optional low limit to test.

Remarks

The property is optional but at least one of the limit properties is required to apply limits to the alarm condition. For cases where an underlying system cannot provide the actual value of a limit, the limit property will still be provided, but will have its access level set to not readable. It is assumed that the limits are described using the same engineering unit that is assigned to the variable that is the source of the alarm. For rate of change limit alarms, it is assumed this rate is units per second unless otherwise specified.

LowLimitNode

Gets the OpcPropertyNode<T> of the LowLimit property.

public OpcPropertyNode<double> LowLimitNode { get; }

Public ReadOnly Property LowLimitNode As OpcPropertyNode(Of Double)

Property value

OpcPropertyNode<Double>

An instance of the OpcPropertyNode<T> class.

LowLowLimit

Gets or sets a value which indicates the low low limit of a value to test for the alarm condition.

public double LowLowLimit { get; set; }

Public Property LowLowLimit As Double

Property value

Double

The optional low low limit to test.

Remarks

The property is optional but at least one of the limit properties is required to apply limits to the alarm condition. For cases where an underlying system cannot provide the actual value of a limit, the limit property will still be provided, but will have its access level set to not readable. It is assumed that the limits are described using the same engineering unit that is assigned to the variable that is the source of the alarm. For rate of change limit alarms, it is assumed this rate is units per second unless otherwise specified.

LowLowLimitNode

Gets the OpcPropertyNode<T> of the LowLowLimit property.

public OpcPropertyNode<double> LowLowLimitNode { get; }

Public ReadOnly Property LowLowLimitNode As OpcPropertyNode(Of Double)

Property value

OpcPropertyNode<Double>

An instance of the OpcPropertyNode<T> class.

SupportedLimits

Gets a combination of the values defined by the OpcLimitAlarmStates enumeration which defines the different limit states the OpcLimitAlarmNode supports.

public OpcLimitAlarmStates SupportedLimits { get; }

Public ReadOnly Property SupportedLimits As OpcLimitAlarmStates

Property value

OpcLimitAlarmStates

A combination of the members defined by the OpcLimitAlarmStates enumeration.

Methods

CreateBranchCore

protected · override

Creates a new instance of the OpcLimitAlarmNode using the same Id and Name as this node.

protected override OpcConditionNode CreateBranchCore()

Protected Overrides Function CreateBranchCore() As OpcConditionNode

Returns

OpcConditionNode

A new instance of the OpcLimitAlarmNode identifiable and accessible througth the same Id and Name as this node.

Overrides

CreateBranchCore

InitializeDefaults

protected · override

Initializes the default values used by the OpcLimitAlarmNode.

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.