OpcNodeValueExtensions Members

The nodes sequence, one of its items or client is a null reference (Nothing in Visual Basic).

The read service is currently not supported, especially using the nodes or client specified.

The object has been disposed of.

The service execution failed upon different circumstances; for more details see exception details. The following issues can lead to that exception: BadNothingToDo, BadTooManyOperations, BadMaxAgeInvalid and BadTimestampsToReturnInvalid.

Remarks

Known results for the nodes specified are:

Status	Description
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.
BadDataEncodingInvalid	For more details see BadDataEncodingInvalid.
BadDataEncodingUnsupported	For more details see BadDataEncodingUnsupported.
BadNotReadable	For more details see BadNotReadable.
BadUserAccessDenied	For more details see BadUserAccessDenied.

Read<T>(OpcNodeValue<T>, OpcClient)

Reads the value of the value attribute of the node represented by the node specified.

C#

public static T Read<T>(this OpcNodeValue<T> node, OpcClient client)

Parameters

node OpcNodeValue<T>

The OpcNodeValue´1 instance to process.

client OpcClient

The OpcClient to use to read the value attribute of the node.

Returns

T

The T value read using the node.

Exceptions

The node or client is a null reference (Nothing in Visual Basic).

The read service is currently not supported, especially using the node or client specified.

The object has been disposed of.

The service execution failed upon different circumstances; for more details see exception details. The following issues can lead to that exception: BadNothingToDo, BadTooManyOperations, BadMaxAgeInvalid and BadTimestampsToReturnInvalid.

Remarks

Known results for the operation are:

Status	Description
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.
BadDataEncodingInvalid	For more details see BadDataEncodingInvalid.
BadDataEncodingUnsupported	For more details see BadDataEncodingUnsupported.
BadNotReadable	For more details see BadNotReadable.
BadUserAccessDenied	For more details see BadUserAccessDenied.

Write<T>(IEnumerable<OpcNodeValue<T>>, OpcClient)

Writes one or more values to one or more value attributes of one or more nodes represented by the nodes specified.

C#

public static OpcStatusCollection Write<T>(this IEnumerable<OpcNodeValue<T>> nodes, OpcClient client)

Parameters

nodes IEnumerable<OpcNodeValue>

A sequence of OpcNodeValue´1 instances to process.

client OpcClient

The OpcClient to use to read the value attributes of the nodes.

Returns

OpcStatusCollection

An instance of the OpcStatusCollection its number and order of items matches the number and order of items in the nodes. There is for each node one entry which indicates the outcome of the operation for that node.

Exceptions

The nodes sequence or one of its items or client is a null reference (Nothing in Visual Basic).

The write service is currently not supported, especially using the nodes or client specified.

The object has been disposed of.

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 nodes specified 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.

Write<T>(IEnumerable<OpcNodeValue<T>>, OpcClient, IEnumerable<T>)

Writes one or more values to one or more value attributes of one or more nodes represented by the nodes using the values specified.

C#

public static OpcStatusCollection Write<T>(this IEnumerable<OpcNodeValue<T>> nodes, OpcClient client, IEnumerable<T> values)

Parameters

nodes IEnumerable<OpcNodeValue>

A sequence of OpcNodeValue´1 instances to process.

client OpcClient

The OpcClient to use to read the value attributes of the nodes.

values IEnumerable<T>

A sequence of T values to write.

Returns

OpcStatusCollection

An instance of the OpcStatusCollection its number and order of items matches the number and order of items in the nodes. There is for each node one entry which indicates the outcome of the operation for that node.

Exceptions

ArgumentException

The number of items in nodes does not match the number of items in values.

The nodes sequence or one of its items, client or values is a null reference (Nothing in Visual Basic).

The write service is currently not supported, especially using the nodes or client specified.

The object has been disposed of.

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 nodes specified 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.

Write<T>(IEnumerable<OpcNodeValue<T>>, OpcClient, T[])

Writes one or more values to one or more value attributes of one or more nodes represented by the nodes using the values specified.

C#

public static OpcStatusCollection Write<T>(this IEnumerable<OpcNodeValue<T>> nodes, OpcClient client, params T[] values)

Parameters

nodes IEnumerable<OpcNodeValue>

A sequence of OpcNodeValue´1 instances to process.

client OpcClient

The OpcClient to use to read the value attributes of the nodes.

values T

An array of T values to write.

Returns

OpcStatusCollection

An instance of the OpcStatusCollection its number and order of items matches the number and order of items in the nodes. There is for each node one entry which indicates the outcome of the operation for that node.

Exceptions

ArgumentException

The number of items in nodes does not match the number of items in values.

The nodes sequence or one of its items, client or values is a null reference (Nothing in Visual Basic).

The write service is currently not supported, especially using the nodes or client specified.

The object has been disposed of.

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 nodes specified 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.

Write<T>(OpcNodeValue<T>, OpcClient)

Writes the value attribute of the node specified.

C#

public static OpcStatus Write<T>(this OpcNodeValue<T> node, OpcClient client)

Parameters

node OpcNodeValue<T>

The OpcNodeValue´1 instance to process.

client OpcClient

The OpcClient to use to write the value attribute of the node.

Returns

OpcStatus

An instance of the OpcStatus class which indicates the outcome of the operation for the node.

Exceptions

The node or client is a null reference (Nothing in Visual Basic).

The write service is currently not supported, especially using the node or client specified.

The object has been disposed of.

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 node specified 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.

Write<T>(OpcNodeValue<T>, OpcClient, T)

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

C#

public static OpcStatus Write<T>(this OpcNodeValue<T> node, OpcClient client, T value)

Parameters

node OpcNodeValue<T>

The OpcNodeValue´1 instance to process.

client OpcClient

The OpcClient to use to write the value attribute of the node using the value.

value T

The T value to write to the node.

Returns

OpcStatus

An instance of the OpcStatus class which indicates the outcome of the operation for the node.

Exceptions

The node or client is a null reference (Nothing in Visual Basic).

The write service is currently not supported, especially using the node or client specified.

The object has been disposed of.