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《OPC DA 2.05a 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、OPCDataAccessCustomInterfaceSpecification2.04TMDataAccessCustomInterfaceStandardVersion2.05AJune282002OPCDataAccessCustomInterfaceSpecification2.05SpecificationTypeIndustryStandardSpecificationTitle:OPCDataAccessCustomDate:June28,2002InterfaceSpecification
2、Version:2.05ASoftMS-WordSource:opcda205a_custAuthor:OpcFoundationStatus:ReleasedSynopsis:ThisspecificationisthespecificationoftheinterfacefordevelopersofOPCDataAccessclientsandOPCservers..Thespecificationisaresultofananalysisanddesignprocesstodevelopastand
3、ardinterfacetofacilitatethedevelopmentofserversandclientsbymultiplevendorsthatshallinter-operateseamlesslytogether.Trademarks:Mostcomputerandsoftwarebrandnameshavetrademarksorregisteredtrademarks.Theindividualtrademarkshavenotbeenlistedhere.RequiredRuntime
4、Environment:ThisspecificationrequiresWindows95,WindowsNT4.0orlateriiOPCDataAccessCustomInterfaceSpecification2.05NON-EXCLUSIVELICENSEAGREEMENTTheOPCFoundation,anon-profitcorporation(the“OPCFoundation”),hasestablishedasetofstandardOLE/COMinterfaceprotocolsi
5、ntendedtofostergreaterinteroperabilitybetweenautomation/controlapplications,fieldsystems/devices,andbusiness/officeapplicationsintheprocesscontrolindustry.ThecurrentOPCspecifications,prototypesoftwareexamplesandrelateddocumentation(collectively,the“OPCMate
6、rials”),formasetofstandardOLE/COMinterfaceprotocolsbaseduponthefunctionalrequirementsofMicrosoft’sOLE/COMtechnology.Suchtechnologydefinesstandardobjects,methods,andpropertiesforserversofreal-timeinformationlikedistributedprocesssystems,programmablelogiccon
7、trollers,smartfielddevicesandanalyzersinordertocommunicatetheinformationthatsuchserverscontaintostandardOLE/COMcomplianttechnologiesenableddevices(e.g.,servers,applications,etc.).TheOPCFoundationwillgranttoyou(the“User”),whetheranindividualorlegalentity,al
8、icensetouse,andprovideUserwithacopyof,thecurrentversionoftheOPCMaterialssolongasUserabidesbythetermscontainedinthisNon-ExclusiveLicenseAgreement(“Agreement”).IfUserdoesnotagreetothetermsandconditionscontained
