Figure 44 depicts the ObjectType for the PubSub DataSetWriter model and its components and the relations to other parts of the model.

image047.png

Figure 44 – DataSet Writer model overview

An instance of this ObjectType represents the configuration for a DataSetWriter. The DataSetWriterType is formally defined Table 261.

A DataSetWriter that creates DataSetMessages based on a PublishedDataSet shall reference the related PublishedDataSet with an inverse DataSetToWriter Reference.

A DataSetWriter that creates heartbeat DataSetMessages shall not have a reference to a PublishedDataSet.

Table 261 – DataSetWriterType definition

Attribute

Value

BrowseName

DataSetWriterType

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

Modelling Rule

Subtype of BaseObjectType defined in OPC 10000-5

HasProperty

Variable

DataSetWriterId

UInt16

PropertyType

Mandatory

HasProperty

Variable

DataSetField‌ContentMask

DataSetField ContentMask

PropertyType

Mandatory

HasProperty

Variable

KeyFrameCount

UInt32

PropertyType

Optional

HasProperty

Variable

DataSetWriterProperties

KeyValuePair[]

PropertyType

Mandatory

HasComponent

Object

TransportSettings

DataSetWriterTransportType

Optional

HasComponent

Object

MessageSettings

DataSetWriterMessageType

Optional

HasComponent

Object

Status

PubSubStatusType

Mandatory

HasComponent

Object

Diagnostics

PubSubDiagnostics‌DataSetWriterType

Optional

Conformance Units

PubSub Model Base

The DataSetWriterId is defined in 6.2.4.1.

The DataSetFieldContentMask is defined in 6.2.4.2.

The KeyFrameCount is defined in 6.2.4.3. The Property shall be present for PublishedDataSets that provide cyclic updates of the DataSet.

The DataSetWriterProperties is defined in 6.2.4.4.

The transport protocol mapping specific setting settings are provided in the optional Object TransportSettings. The DataSetWriterTransportType is defined in 9.1.7.3. The Object shall be present if the transport protocol mapping defines specific parameters.

The message mapping specific setting settings are provided in the optional Object MessageSettings. The DataSetWriterMessageType is defined in 9.1.7.4. The Object shall be present if the message mapping defines specific parameters.

The Status Object provides the current operational status of the DataSetWriter. The PubSubStatusType is defined in 9.1.10. The state machine for the status and the relation to other PubSub Objects like PubSubConnection and PubSubGroup is defined in 6.2.1.

The Diagnostics Object provides the current diagnostic information for a DataSetWriterType Object. The PubSubDiagnosticsDataSetWriterType is defined in 9.1.11.11.

This ObjectType is the abstract base type for Objects defining protocol-specific transport settings of DataSetMessages. The DataSetWriterTransportType is formally defined Table 262.

Table 262 – DataSetWriterTransportType definition

Attribute

Value

BrowseName

DataSetWriterTransportType

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of BaseObjectType defined in OPC 10000-5

Conformance Units

PubSub Model Base

This ObjectType is the abstract base type for Objects representing message mapping specific settings for DataSetWriters. The DataSetWriterMessageType is formally defined in Table 263.

Table 263 – DataSetWriterMessageType definition

Attribute

Value

BrowseName

DataSetWriterMessageType

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of BaseObjectType defined in OPC 10000-5

Conformance Units

PubSub Model Base