OPC Studio User's Guide and Reference
Write(IEasyUAClient,UAEndpointDescriptor,UANodeDescriptor,UAAttributeData,UAAttributeId) Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > IEasyUAClientExtension Class > Write Method : Write(IEasyUAClient,UAEndpointDescriptor,UANodeDescriptor,UAAttributeData,UAAttributeId) Method
The client object that will perform the operation.
Endpoint descriptor. Identifies the OPC-UA server.
Node descriptor. Identifies the node in OPC server's address space.
Value of an attribute, together with status code and timestamps, to be written.
Attribute Id. Identifies an attribute of a node.
Writes into an attribute in an OPC server. Value, status code and timestamps are written. Writes data into a Value attribute of a node, specifying an endpoint descriptor, node Id, and attribute Id.
Syntax

Parameters

client
The client object that will perform the operation.
endpointDescriptor
Endpoint descriptor. Identifies the OPC-UA server.
nodeDescriptor
Node descriptor. Identifies the node in OPC server's address space.
attributeData
Value of an attribute, together with status code and timestamps, to be written.
attributeId
Attribute Id. Identifies an attribute of a node.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

An invalid enumeration value was used.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

The OPC UA operation has failed. This operation exception in uniformly used to allow common handling of various kinds of errors. The System.Exception.InnerException always contains information about the actual error cause.

This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also