Reference

OpcClient.WriteNodeValue Method

since v2.8

Writes the Value attribute of the node using the further specified value.

csharp

public OpcStatus WriteNodeValue(IOpcNodeValue node, object value)

vbnet

Public Function WriteNodeValue(
    node As IOpcNodeValue,
    value As Object) As OpcStatus

Parameters

Name	Type	Description
`node`	IOpcNodeValue	The IOpcNodeValue instance which represents the node its Value is to be written.
`value`	Object	The data to write to the Value attribute.

Returns

OpcStatus

An instance of the OpcStatus class which indicates the outcome of the write operation.

Exceptions

Exception	Condition
ArgumentNullException	The `node` is a null reference (Nothing in Visual Basic).
InvalidOperationException	The write service is currently not supported, especially using the `node` specified.
ObjectDisposedException	The object has been disposed of.
OpcException	The service execution failed upon different circumstances; for more details see exception details. The following issues can lead to that exception: BadNothingToDo and BadTooManyOperations.

Remarks

Known results for the operation are:

Status	Description
GoodCompletesAsynchronously	The value was successfully written to an intermediate system but the Server does not know if the data source was updated properly.
BadNodeIdInvalid	For more details see BadNodeIdInvalid.
BadNodeIdUnknown	For more details see BadNodeIdUnknown.
BadAttributeInvalid	For more details see BadAttributeInvalid.
BadIndexRangeInvalid	For more details see BadIndexRangeInvalid.
BadIndexRangeNoData	For more details see BadIndexRangeNoData.
BadWriteNotSupported	The requested write operation is not supported. If a client attempts to write any value, quality, timestamp combination and the server does not support the requested combination (which could be a single quantity such as just timestamp), then the Server shall not perform any write on this node and shall return this status for that node.
BadNotWritable	For more details see BadNotWritable.
BadUserAccessDenied	For more details see BadUserAccessDenied.
BadOutOfRange	If a client attempts to write a value outside the valid range like a value not contained in the enumeration data type of a node, the server shall return this status for that node.
BadTypeMismatch	For more details see BadTypeMismatch.
BadDataEncodingUnsupported	For more details see BadDataEncodingUnsupported.
BadNoCommunication	For more details see BadNoCommunication.

OpcClient.WriteNodeValue Method ​