UA Part 14: PubSub - 9.1.6.2 PubSubGroupType

Errata exists for this version of the document.

This ObjectType is the abstract base type for Objects representing communication groupings for PubSub connections. The PubSubGroupType is formally defined in Table 114.

Table 114 – PubSubGroupType Definition

Attribute	Value
BrowseName	PubSubGroupType
IsAbstract	True
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of BaseObjectType defined in OPC 10000-5.
HasProperty	Variable	SecurityMode	MessageSecurityMode	PropertyType	Mandatory
HasProperty	Variable	SecurityGroupId	String	PropertyType	Optional
HasProperty	Variable	SecurityKeyServices	EndpointDescription[]	PropertyType	Optional
HasProperty	Variable	MaxNetworkMessageSize	UInt32	PropertyType	Mandatory
HasProperty	Variable	GroupProperties	KeyValuePair[]	PropertyType	Mandatory
HasComponent	Object	Status		PubSubStatusType	Mandatory

The SecurityGroupId is defined in 6.2.4.3. If the SecurityMode is not NONE_1, the Property shall provide the SecurityGroupId. The value of the Property is null or the Property is not present if the SecurityMode is NONE_1.

The SecurityKeyServices parameter is defined in 6.2.4.4. If the SecurityMode is not NONE_1, the Property shall provide the list of Security Key Services for the SecurityGroupId.

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