This is a subtype of AuditHistoryDeleteEventType and is used for categorization of history delete related Events. This type follows all the behaviour of its parent type. Its representation in the AddressSpace is formally defined in Table 21.

Table 21 – AuditHistoryAtTimeDeleteEventType definition

Attribute	Value
BrowseName	AuditHistoryAtTimeDeleteEventType
IsAbstract	False
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the AuditHistoryDeleteEventType defined in Table 19, i.e. it has HasProperty References to the same Nodes.
HasProperty	Variable	ReqTimes	UtcTime[]	PropertyType	Mandatory
HasProperty	Variable	OldValues	DataValue[]	PropertyType	Mandatory
ConformanceUnits
Historical Access Audit Delete At Time

This EventType inherits all Properties of the AuditHistoryDeleteEventType. Their semantic is defined in 5.8.8.

The ReqTimes reflect the request time parameter of the call.

The OldValues identifies the value that history contained before the delete. A Server should report all deleted values. It is acceptable for a Server that does not have this information to report a null value. The OldValues will contain a value in the DataType and encoding used for writing the value.