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《OPC DA 2.02 Automation Specification.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、DataAccessAutomationInterfaceStandardVersion2.02February4,1999OPCDataAccessAutomationSpecification2.02Synopsis:ThisspecificationisaninterfacefordevelopersofOPCclientsandOPCDataAccessServers.Thespecificationisaresultofananalysisanddesignprocesstodevelopastandardinterfacetofacilitatethedevelopm
2、entofserversandclientsbymultiplevendorsthatshallinter-operateseamlesslytogether.ThisdocumentdefinestheOPCDataAccessOLEAutomationinterfacefordevelopersofOPCclientsandOPCDataAccessServers.ThepurposeofthisspecificationistoprovideanOLEAutomationinterfacefortheOPCDataAccessServerCustomInterfaceFun
3、ctionalityDocumentationTypeIndustryStandardSpecificationTitle:OPCDataAccessAutomationDate:February3,1999SpecificationVersion:2.02SoftMS-WordSource:opcda20_auto.docAuthor:OPCFoundationStatus:ReleaseTrademarks:Mostcomputerandsoftwarebrandnameshavetrademarksorregisteredtrademarks.Theindividualtr
4、ademarkshavenotbeenlistedhere.RequiredRuntimeEnvironment:ThisspecificationrequiresWindows95/98(withDCOMinstalled),WindowsNT4.0orlater.ItisrecommendedthatWindowsNT4.0machinesberunwithSP3,orlater.2OPCDataAccessAutomationSpecification2.02NON-EXCLUSIVELICENSEAGREEMENTTheOPCFoundation,anon-profitc
5、orporation(the“OPCFoundation”),hasestablishedasetofstandardOLE/COMinterfaceprotocolsintendedtofostergreaterinteroperabilitybetweenautomation/controlapplications,fieldsystems/devices,andbusiness/officeapplicationsintheprocesscontrolindustry.ThecurrentOPCspecifications,prototypesoftwareexamples
6、andrelateddocumentation(collectively,the“OPCMaterials”),formasetofstandardOLE/COMinterfaceprotocolsbaseduponthefunctionalrequirementsofMicrosoft’sOLE/COMtechnology.Suchtechnologydefinesstandardobjects,methods,andpropertiesforserversofreal-timeinformationlikedistributedprocesssystems,programma
7、blelogiccontrollers,smartfielddevicesandanalyzersinordertocommunicatetheinformationthatsuchserverscontaintostandardOLE/COMcomplianttechnologiesenableddevices(e.g.,servers,applications,etc.).TheOPCFoundationwillgranttoyou(the“User”),whetherani
