This EventTypeis defined in OPC 10000-3. Its representation in the AddressSpaceis formally defined in Table 31.

Table 31– AuditActivateSessionEventType Definition

Attribute		Value
BrowseName		AuditActivateSessionEventType
IsAbstract		True
References	NodeClass		BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the AuditSessionEventTypedefined in 6.4.7, which means it inherits the InstanceDeclarations of that Node.
HasProperty	Variable		ClientSoftwareCertificates	SignedSoftwareCertificate[]	PropertyType	Mandatory
HasProperty	Variable		UserIdentityToken	UserIdentityToken	PropertyType	Mandatory
HasProperty	Variable		SecureChannelId	String	PropertyType	Mandatory

This EventTypeinherits all Propertiesof the AuditSessionEventType. Their semantic is defined in 6.4.7. The SourceNamefor Eventsof this type shall be “Session/ActivateSession”.

The additional Propertiesdefined for this EventTypereflect parameters of the Servicecall that triggers the Event.

ClientSoftwareCertificatesis the clientSoftwareCertificates parameter of the ActivateSession Servicecall.

UserIdentityTokenreflects the userIdentityToken parameter of the ActivateSession Servicecall. For Username/Password tokens the password shall not be included.

SecureChannelIdshall uniquely identify the SecureChannel. The application shall use the same identifier in all AuditEventsrelated to the Session Service Set (AuditCreateSessionEventType, AuditActivateSessionEventType and their subtypes) and the SecureChannel Service Set (AuditChannelEventType and its subtypes).