This EventType is defined in OPC 10000-3. Its representation in the AddressSpace is formally defined in Table 32.

Table 32 – AuditActivateSessionEventType definition

Attribute		Value
BrowseName		AuditActivateSessionEventType
IsAbstract		True
References	NodeClass		BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the AuditSessionEventType defined 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
Conformance Units
Auditing Connections

This EventType inherits all Properties of the AuditSessionEventType. Their semantic is defined in 6.4.7. The SourceName for Events of this type shall be "Session/ActivateSession".

The additional Properties defined for this EventType reflect parameters of the Service call that triggers the Event.

ClientSoftwareCertificates is the clientSoftwareCertificates parameter of the ActivateSession Service call.

UserIdentityToken reflects the userIdentityToken parameter of the ActivateSession Service call. For Username/Password tokens the password shall not be included.

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