Namespace: Opc.UaFx
Assemblies: Opc.UaFx.Advanced.dll, Opc.UaFx.Advanced.dll
The OpcHistoryConfigurationNode type exposes the following members.
Initializes a new instance of the OpcHistoryConfigurationNode class.
C#
public OpcHistoryConfigurationNode()
Initializes a new instance of the OpcHistoryConfigurationNode class as a child node of the parent
node given.
C#
public OpcHistoryConfigurationNode(IOpcNode parent)
Parameters
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.
Initializes a new instance of the OpcHistoryConfigurationNode class accessible by the name
specified as a child node of the parent
node given.
C#
public OpcHistoryConfigurationNode(IOpcNode parent, OpcName name)
Parameters
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 history configurtion node can be accessed.
Initializes a new instance of the OpcHistoryConfigurationNode class accessible by the name
and id
specified as a child node of the parent
node given.
C#
public OpcHistoryConfigurationNode(IOpcNode parent, OpcName name, OpcNodeId id)
Parameters
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 history configurtion node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new history configurtion node can be identified and accessed.
Initializes a new instance of the OpcHistoryConfigurationNode class accessible by the name
specified.
C#
public OpcHistoryConfigurationNode(OpcName name)
Parameters
name
OpcName
The OpcName through that the new history configurtion node can be accessed.
Initializes a new instance of the OpcHistoryConfigurationNode class accessible by the name
and id
specified.
C#
public OpcHistoryConfigurationNode(OpcName name, OpcNodeId id)
Parameters
name
OpcName
The OpcName through that the new history configurtion node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new history configurtion node can be identified and accessed.
Gets the node used as the browse entry point for information on how the server treats aggregate specific functionality such as handling uncertain data.
C#
public OpcAggregateConfigurationNode AggregateConfiguration { get; }
Property Value
An instance of the OpcAggregateConfigurationNode for information on how the server treats aggregate specific functionality.
Gets the node used as an entry point to browse to all aggregate capabilities supported by the server for historical access.
C#
public OpcFolderNode AggregateFunctions { get; }
Property Value
An instance of the OpcFolderNode with all history aggregates supported by the server. If the server does not support aggregates then the folder is left empty.
Gets the default identifier which identifies the node that defines the underlying node type from that this OpcInstanceNode has been created.
C#
protected override OpcNodeId DefaultTypeDefinitionId { get; }
Property Value
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).
Gets or sets is a vendor-specific, human readable string that specifies how the value of this historical data node is calculated.
C#
public string Definition { get; set; }
Property Value
A non-localized value which will often contain an equation that can be parsed by certain client.
Gets the OpcPropertyNode´1 of the Definition property.
C#
public OpcPropertyNode<string> DefinitionNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets or sets a value which specifies the minimum amount that the data for the historical data node must change in order for the change to be reported to the history database.
C#
public double ExceptionDeviation { get; set; }
Property Value
The minimum amount that the data node must change in order for the change to be reported to the history database.
Gets or sets the format how the ExceptionDeviation is determined.
C#
public OpcExceptionDeviationFormat ExceptionDeviationFormat { get; set; }
Property Value
One of the members defined by the OpcExceptionDeviationFormat enumeration.
Gets the OpcPropertyNode´1 of the ExceptionDeviationFormat property.
C#
public OpcPropertyNode<ExceptionDeviationFormat> ExceptionDeviationFormatNode { get; }
Property Value
OpcPropertyNode<ExceptionDeviationFormat>
An instance of the OpcPropertyNode´1 class.
Gets the OpcPropertyNode´1 of the ExceptionDeviation property.
C#
public OpcPropertyNode<double> ExceptionDeviationNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets or sets which specifies the maximum interval between data points in the history repository regardless of their value change.
C#
public double MaxTimeInterval { get; set; }
Property Value
The maximum interval between data points.
Gets the OpcPropertyNode´1 of the MaxTimeInterval property.
C#
public OpcPropertyNode<double> MaxTimeIntervalNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets or sets which specifies the minimum interval between data points in the history repository regardless of their value change.
C#
public double MinTimeInterval { get; set; }
Property Value
The minimum interval between data points.
Gets the OpcPropertyNode´1 of the MinTimeInterval property.
C#
public OpcPropertyNode<double> MinTimeIntervalNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets the OpcPropertyNode´1 of the StartOfArchive property.
C#
public OpcPropertyNode<DateTime> StartOfArchiveNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets the OpcPropertyNode´1 of the StartOfOnlineArchive property.
C#
public OpcPropertyNode<DateTime> StartOfOnlineArchiveNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Gets or sets a value indicating whether the historical data was collected in such a manner that it should be displayed as sloped interpolation (sloped line between points) or as stepped interpolation (vertically-connected horizontal lines between points) when raw data is examined.
C#
public bool Stepped { get; set; }
Property Value
A value of true indicates stepped interpolation mode. A value equals false indicates sloped interpolated mode. The default value is false.
Remarks
This property also effects how some aggregates are calculated.
Gets the OpcPropertyNode´1 of the Stepped property.
C#
public OpcPropertyNode<bool> SteppedNode { get; }
Property Value
An instance of the OpcPropertyNode´1 class.
Initializes the default values used by the OpcHistoryConfigurationNode.
C#
protected override void 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.