标准资料网-标准资料免费资源平台

【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part4-1:Data-linklayerprotocolspecification-Type1elements(IEC61158-4-1:2007);EnglishversionEN61158-4-1:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第4-1部分:数据联络层协议规范.1型元件.仅为CD-ROM
【标准号】:DINEN61158-4-1-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据连接系统;数据处理;数据设备;数据传送;定义;数字的;数字数据;数字工程;数字信号;电子数据处理;电气工程;电子仪器;电子系统;英语;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口;接口(数据处理);链路层;开放系统互连;OSI;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidesthedata-linkservicebymakinguseoftheservicesavailablefromthephysicallayer.TherelationshipbetweentheInternationalStandardsforfieldbusdata-linkservice,fieldbusdata-linkprotocol,fieldbusphysicalserviceandsystemsmanagementisdescribedinIEC/TR61158-1.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inacyclicasynchronousmanner,sequentiallytoeachofthosedata-linkentities,andb)inasynchronousmanner,eithercyclicallyoracyclically,accordingtoapre-establishedschedule.Thespecifiedprotocolalsoprovidesmeansofchangingthesetofparticipatingdata-linkentitiesandofmodifyingthesetofscheduledcommunicationsopportunities.Whenthesetofscheduledcommunicationsopportunitiesisnull,thedistributionofcommunicationopportunitiestotheparticipatingdata-linkentitiesiscompletelyasynchronous.Thusthisprotocolcanbecharacterizedasonewhichprovidesaccessasynchronouslybutwithasynchronousoverlay.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddata-linkserviceprovider;b)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.NOTEInIEC61158-4-1,grayboxeshavebeenusedinthetablestoindicatethatthespecifiedfieldisnotaconceptualpartofthespecificDLPDU.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodelsandwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements.
【中国标准分类号】:N18;P76
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:421P.;A4
【正文语种】:英语


【英文标准名称】:Connectorsforelectronicequipment-Testsandmeasurements-Part4-3:Voltagestresstests;Test4c:Voltageproofofpre-insulatedcrimpbarrels
【原文标准名称】:电子设备连接器.试验和测量.第4-3部分:电压应力试验.试验4c:预绝缘卷筒的电压检验
【标准号】:IEC60512-4-3-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC48B
【标准类型】:()
【标准水平】:()
【中文主题词】:动力荷载;电气工程;动态试验;电气元件;测量技术;机械试验;连接器;组件;电子工程;机电学;试验;电子仪器;应力;电子设备;机电的
【英文主题词】:Components;Connectors;Crimpbarrels;Dielectricstrength;Dynamicloading;Dynamictesting;Electricplugs;Electricalcomponents;Electricalengineering;Electromechanical;Electromechanics;Electronicengineering;Electronicequipment;Electronicinstruments;Measuringtechniques;Mechanicaltesting;Stress;Testing
【摘要】:ThispartofIEC60512,whenrequiredbythedetailspecification,isusedfortestingelectromechanicalcomponentswithinthescopeofIECtechnicalcommittee48.Thistestmayalsobeusedforsimilardeviceswhenspecifiedinadetailspecification.Theobjectofthistestistodetailastandardmethodtodeterminetheabilityofpre-insulatedcrimpbarrelstowithstandthecrimpoperationwithoutdamagetotheinsulation.
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:7P.;A4
【正文语种】:英语