UA Part 14: PubSub - 6.2.5.6 WriterGroup Structures

Errata exists for this version of the document.

This Structure DataType is used to represent the configuration parameters for WriterGroups. It is a subtype of PubSubGroupDataType defined in 0.

The WriterGroupDataType is formally defined in Table 22.

Table 22 – WriterGroupDataType Structure

Name	Type	Description
WriterGroupDataType	Structure
writerGroupId	UInt16	Defined in 6.2.5.1.
publishingInterval	Duration	Defined in 6.2.5.2.
keepAliveTime	Duration	Defined in 6.2.5.3.
priority	Byte	Defined in 6.2.5.4.
localeIds	LocaleId[]	Defined in 6.2.5.5.
headerLayoutUri	String
transportSettings	WriterGroupTransportDataType	Transport mapping specific WriterGroup parameters. The abstract base type is defined in 6.2.5.6.2. The concrete subtypes are defined in the sections for transport mapping specific parameters.
messageSettings	WriterGroupMessageDataType	NetworkMessage mapping specific WriterGroup parameters. The abstract base type is defined in 6.2.5.6.3. The concrete subtypes are defined in the sections for message mapping specific parameters.
dataSetWriters	DataSetWriterDataType[]	The DataSetWriters contained in the WriterGroup. The DataSetWriter parameters are defined in 6.2.3.

The WriterGroupDataType Structure representation in the AddressSpace is defined in Table 23.

Table 23 – WriterGroupDataType Definition

Attributes	Value
BrowseName	WriterGroupDataType
IsAbstract	False
References	NodeClass	BrowseName	IsAbstract
Subtype of PubSubGroupDataType defined in 0.

6.2.5.6.2 WriterGroupTransportDataType

This Structure DataType is an abstract base type for transport mapping specific WriterGroup parameters. The abstract DataType does not define fields.

The WriterGroupTransportDataType Structure representation in the AddressSpace is defined in Table 24.

Table 24 – WriterGroupTransportDataType Definition

Attributes	Value
BrowseName	WriterGroupTransportDataType
IsAbstract	True
References	NodeClass	BrowseName	IsAbstract	Description
Subtype of Structure defined in OPC 10000-5.
HasSubtype	DataType	DatagramWriterGroupTransportDataType	FALSE	Defined in 6.4.1.2.3.
HasSubtype	DataType	BrokerWriterGroupTransportDataType	FALSE	Defined in 6.4.2.2.6.

6.2.5.6.3 WriterGroupMessageDataType

This Structure DataType is an abstract base type for message mapping specific WriterGroup parameters. The abstract DataType does not define fields.

The WriterGroupMessageDataType Structure representation in the AddressSpace is defined in Table 25.

Table 25 – WriterGroupMessageDataType Structure

Attributes	Value
BrowseName	WriterGroupMessageDataType
IsAbstract	True
References	NodeClass	BrowseName	IsAbstract	Description
Subtype of Structure defined in OPC 10000-5.
HasSubtype	DataType	UadpWriterGroupMessageDataType	FALSE	Defined in 6.3.1.1.7.
HasSubtype	DataType	JsonWriterGroupMessageDataType	FALSE	Defined in 6.3.2.1.2.