ReadProcessedDetails structure details – OPC Unified Architecture

Table 37 defines the structure of the ReadProcessedDetails structure.

Table 37 – ReadProcessedDetails structure

Name	Type	Description
ReadProcessedDetails	Structure	Specifies the details used to perform a “processed” history read.
startTime	UtcTime	Beginning of period to read.
endTime	UtcTime	End of period to read.
ProcessingInterval	Duration	Interval between returned Aggregate values. The value 0 indicates that there is no ProcessingInterval defined.
aggregateType[]	NodeId	The NodeId of the HistoryAggregate object that indicates the list of Aggregates to be used when retrieving the processed history. See OPC 10000-13 for details.
AggregateConfiguration	Aggregate Configuration	Aggregate configuration structure.
useServerCapabilitiesDefaults	Boolean	As described in OPC 10000-4 AggregateFilter Structure. (also see AggregateConfiguration settings defined in OPC 10000-13, and as described in HistorianConfiguration Objects (see 5.2.2).
TreatUncertainAsBad	Boolean	As described in OPC 10000-13.
PercentDataBad	Byte	As described in OPC 10000-13.
PercentDataGood	Byte	As described in OPC 10000-13.
UseSlopedExtrapolation	Boolean	As described in OPC 10000-13.

See OPC 10000-13 for details on possible NodeId values for the aggregateType parameter.

Its representation in the AddressSpace is defined in Table 30.

Table 38 – ReadProcessedDetails definition

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the HistoryReadDetails defined in Table 28

Conformance Units
Historical Access Aggregates