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IEC 61158-4-11-2007 工业通讯网络.数据总线规范.第4-11部分:数据联络层协议规范.11型元件

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【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part4-11:Data-linklayerprotocolspecification-Type11elements
【原文标准名称】:工业通讯网络.数据总线规范.第4-11部分:数据联络层协议规范.11型元件
【标准号】:IEC61158-4-11-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-12
【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/SC65C
【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;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;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;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;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.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inasynchronously-startingcyclicmanner,accordingtoapre-establishedschedule,andb)inacyclicoracyclicasynchronousmanner,asrequestedeachcyclebyeachofthosedata-linkentities.Thusthisprotocolcanbecharacterizedasonewhichprovidescyclicandacyclicaccessasynchronouslybutwithasynchronousrestartofeachcycle.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddatalinkserviceprovider;b)proceduresforgivingcommunicationsopportunitiestoallparticipatingDL-entities,sequentiallyandinacyclicmannerfordeterministicandsynchronizedtransferatcyclicintervalsuptoonemillisecond;c)proceduresforgivingcommunicationopportunitiesavailablefortime-criticaldatatransmissiontogetherwithnon-time-criticaldatatransmissionwithoutprejudicetothetime-criticaldatatransmission;d)proceduresforgivingcyclicandacycliccommunicationopportunitiesfortime-criticaldatatransmissionwithprioritizedaccess;e)proceduresforgivingcommunicationopportunitiesbasedonstandardISO/IEC8802-3mediumaccesscontrol,withprovisionsfornodestobeaddedorremovedduringnormaloperation;f)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements.
【中国标准分类号】:N18;P76
【国际标准分类号】:25_040_40;35_100_20;35_160;35_240_50
【页数】:84P;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforThermalConductivityofPlasticsbyMeansofaTransientLine-SourceTechnique
【原文标准名称】:用瞬变线源技术对塑料热导性的标准试验方法
【标准号】:ASTMD5930-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:聚合材料;导热性;试验;塑料和橡胶技术;材料试验
【英文主题词】:line-sourceprobe;line-sourcetechnique;plastics;rubber-thermalconductivity;thermoplastics;thermosets
【摘要】:Therelativesimplicityofthetestmethodmakesitapplicableforawiderangeofmaterials(4,5).Thetechniqueiscapableoffastmeasurements,makingitpossibletotakedatabeforethematerialssufferthermaldegradation.Alternatively,itispossibletostudytheeffectofcompositionalchangessuchaschemicalreactionoraging(6).Shortmeasurementtimespermitgenerationoflargeamountsofdatawithlittleeffort.Theline-sourceprobeandtheaccompanyingtestspecimenaresmallinsize,makingitpossibletosubjectthesampletoawiderangeoftestconditions.Becausethistestmethoddoesnotcontainanumericalprecisionandbiasstatement,itshallnotbeusedasarefereetestmethodincaseofdispute.1.1Thistestmethodcoversthedeterminationofthethermalconductivityofplasticsoveratemperaturerangefrom-40to400oC.Thethermalconductivityofmaterialsintherangefrom0.08to2.0W/m.Kcanbemeasuredcoveringthermoplastics,thermosets,andrubbers,filledandreinforced.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1--ThereisnocurrentISOdocumentthatduplicatesthistestmethod.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Roadtransportandtraffictelematics.Automaticvehicleandequipmentidentification.Systemspecification
【原文标准名称】:道路运输和交通远程信息处理技术.自动车辆和设备识别.系统规范
【标准号】:DDENVISO14815-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-07-15
【实施或试行日期】:2000-07-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;交通管制;系统建筑学;数据传输;道路运输;交通业务;无线电通信;远程处理;信息交换;运载工具;识别;信息技术
【英文主题词】:telematics;systemarchitecture;traffic;datatransmission;teleprocessing;identification;definition;vehicles;trafficcontrol;roadtransport;informationinterchange;radiocommunication
【摘要】:ISO14815:2005definesagenericAutomaticVehicleIdentification/AutomaticEquipmentIdentification(AVI/AEI)SystemspecificationfornominalAVI/AEItoprovideanenablingInternationalStandard,which,whilstallowingthesystemspecifiertodeterminetheperformancelevelsandoperatingconditions,providesaframeworkfornominalinteroperability.
【中国标准分类号】:R87
【国际标准分类号】:35_240_60
【页数】:38P;A4
【正文语种】:英语