This ObjectType is used to indicate and change the status of a PubSub Object like PubSubConnection, DataSetWriter or DataSetReader. The PubSubStatusType is 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 Variable provides the current operational state of the PubSub Object. The default value is Disabled_0. The PubSubState Enumeration and the related state machine is defined in 6.2.1.

The State may be changed with product specific configuration tools or with the Methods Enable and Disable.

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

The Server shall reject Enable Method calls if the current State is not Disabled_0.

The Client shall be authorized to modify the configuration for the PubSub functionality when invoking this Method on the Server.

Signature

Enable ();

Method Result Codes

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

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

The Server shall reject Disable Method calls if the current State is Disabled_0.

The Client shall be authorized to modify the configuration for the PubSub functionality when invoking this Method on the Server.

Signature

Disable ();

Method Result Codes

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

PubSub ObjectTypes that require a status Object add a component with the BrowseName Status. 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