This EventType is defined in OPC 10000-3. Its representation in the AddressSpace is formally defined in Table 47.

Table 47 – AuditHistoryUpdateEventType Definition

Attribute		Value
BrowseName		AuditHistoryUpdateEventType
IsAbstract		True
References	NodeClass		BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the AuditUpdateEventType defined in 6.4.24, which means it inherits the InstanceDeclarations of that Node.
HasProperty	Variable		ParameterDataTypeId	NodeId	PropertyType	Mandatory

This EventType inherits all Properties of the AuditUpdateEventType. Their semantic is defined in 6.4.24.

The ParameterDataTypeId identifies the DataTypeId for the extensible parameter used by the HistoryUpdate. This parameter indicates the type of HistoryUpdate being performed.

Subtypes of this EventType are defined in OPC 10000-11 representing the different possibilities to manipulate historical data.