Search

Scope: Core (OPC-10000-*) All specs

5 result(s) for AggregateFunction

OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

6.8 AggregateFunctionType

AggregateFunctionType This ObjectType defines an AggregateFunction supported by a UA Server . It is formally defined in Table 65 . Table 65 - AggregateFunctionType definition Attribute Value BrowseName AggregateFunctionType IsAbstract False References NodeClass ... Description Attribute is mandatory. The Description Attribute provides a localized description of the AggregateFunction. Specific AggregateFunctions may be defined in further parts of this series of standards
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

4.2.2.1 General

Reference is used to relate a ServerCapabilities Object and/or any HistoryServerCapabilitiesType Object to an AggregateFunction Object . AggregateFunctions is formally defined in Table 3 . Table 3 - Aggregate Functions Definition Attribute Value ... Conformance Units Historical Access Aggregates Each ServerCapabilities and HistoryServerCapabilitiesType Object shall reference an AggregateFunction Object . In addition, each HistoricalConfiguration Object belonging to a HistoricalDataNode may reference an AggregateFunction Object using
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.2.2 ReadProcessedDetails structure overview

period to read. processingInterval Interval between returned Aggregate values. aggregateType[] The NodeIds of the AggregateFunction Objects . AggregateFunction Objects indicate the list of Aggregates to be used when retrieving processed history
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.2.3 AggregateFilter structure overview

period to calculate the Aggregate the first time. aggregateType The NodeIds of the AggregateFunction Objects that indicates the list of Aggregates to be used when retrieving processed data. processingInterval
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.3.2 Operation level result codes

NodeIds . When multiple Aggregates are requested, a corresponding NodeId is required for each AggregateFunction . Bad_AggregateNotSupported The requested AggregateFunction is not supported by the Server for the specified Node