This ObjectTypeis used to indicate and change the status of a PubSub Objectlike PubSubConnection, DataSetWriteror DataSetReader. The PubSubStatusTypeis formally defined in Table 132.

Table 132– PubSubStatusType Definition

Attribute	Value
BrowseName	PubSubStatusType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of BaseObjectType defined in OPC 10000-5.
HasComponent	Variable	State	PubSubState	BaseDataVariableType	Mandatory
HasComponent	Method	Enable	Defined in 9.1.10.2.		Optional
HasComponent	Method	Disable	Defined in 9.1.10.3.		Optional

The State Variableprovides the current operational state of the PubSub Object. The default value is Disabled_0. The PubSubState Enumerationand the related state machine is defined in 6.2.1.

The Statemay be changed with product specific configuration tools or with the Methods Enableand Disable.

This Methodis used to enable a configured PubSub Object. The related state machine and the transitions triggered by a successful call to this Methodare defined in 6.2.1.

The Servershall reject Enable Methodcalls if the current Stateis not Disabled_0.

The Clientshall be authorized to modify the configuration for the PubSubfunctionality when invoking this Methodon the Server.

Signature

Enable();

Method Result Codes

ResultCode	Description
Bad_InvalidState	The state of the Objectis not disabled.
Bad_UserAccessDenied	The Sessionuser is not allowed to configure the Object.

This Methodis used to disable a PubSub Object. The related state machine and the transitions triggered by a successful call to this Methodare defined in 6.2.1.

The Servershall reject Disable Methodcalls if the current Stateis Disabled_0.

The Clientshall be authorized to modify the configuration for the PubSubfunctionality when invoking this Methodon the Server.

Signature

Disable();

Method Result Codes

ResultCode	Description
Bad_InvalidState	The state of the Objectis not operational.
Bad_UserAccessDenied	The Sessionuser is not allowed to configure the Object.

PubSub ObjectTypesthat require a status Objectadd a component with the BrowseNameStatus. It is formally defined in Table 133.

Table 133– Status Object Definition

Attribute	Value
BrowseName	Status
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
HasTypeDefinition	ObjectType	PubSubStatusType