UA Part 14: PubSub - 9.1.13 PubSub Status Events

This EventTypeis a base type for events which indicate an error or status change associated with a PubSubConnectionType, PubSubGroupType, DataSetWriterType or DataSetReaderType Object. The PubSubStatusEventTypeis formally defined in Table 293.

Table 293– PubSubStatusEventType definition

Attribute	Value
BrowseName	PubSubStatusEventType
IsAbstract	True
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of SystemEventType defined in OPC 10000-5.
HasProperty	Variable	ConnectionId	NodeId	PropertyType	Mandatory
HasProperty	Variable	GroupId	NodeId	PropertyType	Mandatory
HasProperty	Variable	State	PubSubState	PropertyType	Mandatory
Conformance Units
PubSub Model Status Event

This EventType inherits all Properties of the SystemEventType. Their semantic is defined in OPC 10000-5.

The ConnectionId Property is the NodeIdof the PubSubConnectionType Objectassociated with the source of the status Event.

The GroupId Property is the NodeIdof the PubSubGroupType Objectassociated with the source of the status Event. The GroupIdis Null if a PubSubConnectionis the source of the Event.

The State Variableis the current state of the Status Objectassociated with the SourceNodeof the status Event.

This EventTypeindicates that a NetworkMessagecould not be published because it exceeds the limits of transport. The PubSubTransportLimitsExceedEventType is formally defined in Table 294.

Table 294– PubSubTransportLimitsExceedEventType definition

Attribute	Value
BrowseName	PubSubTransportLimitsExceedEventType
IsAbstract	True
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of PubSubStatusEventTypedefined in 9.1.13.2.
HasProperty	Variable	Actual	UInt32	PropertyType	Mandatory
HasProperty	Variable	Maximum	UInt32	PropertyType	Mandatory
Conformance Units
PubSub Model Diagnostics Events

The Actual Propertyhas the size in bytes of the actual NetworkMessage.

The Maximum Propertyhas the maximum size of NetworkMessagesin bytes allowed by the transport.

This EventTypeindicates that a NetworkMessagecould not be published because of a communication failure. The PubSubCommunicationFailureEventType is formally defined in Table 295.

Table 295– PubSubCommunicationFailureEventType definition

Attribute	Value
BrowseName	PubSubCommunicationFailureEventType
IsAbstract	True
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of PubSubStatusEventTypedefined in 9.1.13.2.
HasProperty	Variable	Error	StatusCode	PropertyType	Mandatory
Conformance Units
PubSub Model Diagnostics Events

The Message Eventfield inherited from BaseEventTypehas a localized description of the error.

The Error Propertyhas the StatusCodeassociated with the error.