UA Part 22: Base Network Model - 5.4 Instance Entry Points

Overview and location of the instance entry points are shown in Figure 3.

Figure 3– Instance Entry Points for Network Interfaces and Streams

The Resources Objectshall be used as the browse entry point for physical and logical resources of the device the Serveris running on. It shall reside in the Server Objectdefined in OPC 10000-5. It may contain a set of OrganizesReferences that point to other Objectsrepresenting specific resources. It is formally defined in Table 35.

Table 35– Resources definition

Attribute	Value
BrowseName	Resources
References	NodeClass	BrowseName	Comment
ComponentOf of the Server Object defined in Part 5.
HasTypeDefinition	ObjectType	FolderType
Organizes	Object	Communication	Defined in 5.4.2

5.4.2 Communication Folder

The Communication Objectshall be used as the browse entry point for communication related resources of the physical device the Serveris running on. It is formally defined in Table 36.

The Communication Objectis referenced by an Organizes Referencefrom the Resources Objectdefined in 5.4.1.

The Communication Objectmay include the following subfolders:

MappingTables
NetworkInterfaces
Streams

Note: It is recommended to keep TSN-Streams and possible future (DetNet-)Flows separated in specific folders.

Table 36– Communication definition

Attribute	Value
BrowseName	Communication
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType
Organizes	Object	MappingTables	Defined in 5.4.3
Organizes	Object	NetworkInterfaces	Defined in 5.4.4
Organizes	Object	Streams	Defined in 5.4.5

5.4.3 MappingTables Folder

The MappingTables Objectshall be used as the browse entry point for mapping tables of priority values and their application labels. It is formally defined in Table 38.

Table 37– MappingTables definition

Attribute	Value
BrowseName	MappingTables
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType

5.4.4 NetworkInterfaces Folder

The NetworkInterfaces Objectshall be used as the browse entry point for network interfaces of the device the Serveris running on. It is formally defined in Table 38.

Table 38– NetworkInterfaces definition

Attribute	Value
BrowseName	NetworkInterfaces
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType

5.4.5 Streams Folder

The Streams Objectshall be used as the browse entry point for network streams of the device the Serveris running on. It is formally defined in Table 39.

Table 39– Streams definition

Attribute	Value
BrowseName	Streams
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType
Organizes	Object	TalkerStreams	Defined in 5.4.6
Organizes	Object	ListenerStreams	Defined in 5.4.7

5.4.6 TalkerStreams Folder

The TalkerStreams Objectshall be used as the browse entry point for sending network streams of the device the Serveris running on. It is formally defined in Table 40.

Table 40– TalkerStreams definition

Attribute	Value
BrowseName	TalkerStreams
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType

5.4.7 ListenerStreams Folder

The ListenerStreams Objectshall be used as the browse entry point for receiving network streams of the device the Serveris running on. It is formally defined in Table 41.

Table 41– ListenerStreams definition

Attribute	Value
BrowseName	ListenerStreams
References	NodeClass	BrowseName	Comment
HasTypeDefinition	ObjectType	FolderType