Reference

OpcClient.CreateNodesHistory Method

Type

OpcClient

Namespace

Opc.UaFx.Client

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Members

OpcClient Members

Also in

Opc.UaFx.Client

2 overloads

Overload	Description
CreateNodesHistory(IEnumerable<OpcCreateNodeHistory>)	Creates historical values of the nodes as defined by the commands specified using a single history update service request.
CreateNodesHistory(params OpcCreateNodeHistory[])	Creates historical values of the nodes as defined by the commands specified using a single history update service request.

Exceptions (all overloads)

Exception	Condition
OpcException	The client is not connected to the server or the service execution failed upon different circumstances; for more details see exception details.
ObjectDisposedException	The object has been disposed of.

CreateNodesHistory(IEnumerable<OpcCreateNodeHistory>)

Creates historical values of the nodes as defined by the commands specified using a single history update service request.

public IDictionary<OpcNodeId, OpcStatusCollection> CreateNodesHistory(
    IEnumerable<OpcCreateNodeHistory> commands)

Public Function CreateNodesHistory(
    commands As IEnumerable(Of OpcCreateNodeHistory)) As IDictionary(Of OpcNodeId, OpcStatusCollection)

Parameters

Name	Type	Description
commands	IEnumerable<OpcCreateNodeHistory>	A sequence of OpcCreateNodeHistory commands, each defining the node and the values to insert into its history.

Returns

IDictionary<OpcNodeId, OpcStatusCollection>

A dictionary which provides for each node an OpcStatusCollection with the OpcStatus instances the server reports for the command.

Exceptions

Exception	Condition
ArgumentNullException	The commands sequence or one of its items or one of the values of a command is a null reference (Nothing in Visual Basic).
LicenseException	The license is expired.

Remarks

In case there several commands refer to the same node, the status results of these commands are combined in the collection of that node in the order of the commands. In case there the server reports no status per value for a command, the collection holds the status of the command for the node instead.

CreateNodesHistory(params OpcCreateNodeHistory[])

Creates historical values of the nodes as defined by the commands specified using a single history update service request.

public IDictionary<OpcNodeId, OpcStatusCollection> CreateNodesHistory(
    params OpcCreateNodeHistory[] commands)

Public Function CreateNodesHistory(
    ParamArray commands As OpcCreateNodeHistory()) As IDictionary(Of OpcNodeId, OpcStatusCollection)

Parameters

Name	Type	Description
commands	params OpcCreateNodeHistory[]	An array of OpcCreateNodeHistory commands, each defining the node and the values to insert into its history.

Returns

IDictionary<OpcNodeId, OpcStatusCollection>

A dictionary which provides for each node an OpcStatusCollection with the OpcStatus instances the server reports for the command.

Exceptions

Exception	Condition
ArgumentNullException	The commands array or one of its items or one of the values of a command is a null reference (Nothing in Visual Basic).

Remarks

In case there several commands refer to the same node, the status results of these commands are combined in the collection of that node in the order of the commands. In case there the server reports no status per value for a command, the collection holds the status of the command for the node instead.