EN 50264-1-2002 铁路设施.具备特殊防火性能的铁路车辆电缆.标准壁厚.第1部分:一般要求

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【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-17:Applicationlayerservicedefinition-Type17elements(IEC61158-5-17:2007);EnglishversionEN61158-5-17:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第5-17部分:应用层设备定义.17型元件.仅为CD-ROM
【标准号】:DINEN61158-5-17-2008
【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】:应用层;应用;总线系统;总线;电路网络;通信;计算机应用;计算机控制;控制;控制设备;控制系统;控制工艺学;数据总线;数据通信;数据交换;数据传输线;数据连接系统;数据网络;数据处理;数据设备;数据传送;数据传输控制规程;定义;数字的;数字数据;数字工程;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(数据处理);开放系统互连;操作技术;OSI;物理层;过程控制工程;设备;规范;规范(验收);传输媒质
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Physicallayers;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:Thisstandardprovidescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType17fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbythedifferentTypesofthefieldbusApplicationLayerintermsofa)anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseoftheFALservice,b)theprimitiveactionsandeventsoftheservice;c)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andd)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto1)theFALuserattheboundarybetweentheuserandtheApplicationLayeroftheFieldbusReferenceModel,and2)SystemsManagementattheboundarybetweentheApplicationLayerandSystemsManagementoftheFieldbusReferenceModel.ThisstandardspecifiesthestructureandservicesoftheIECfieldbusApplicationLayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIApplicationLayerStructure(ISO/IEC9545).Theprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofservicesstandardizedasthevarioustypesofIEC61158.ThisspecificationmaybeusedasthebasisforformalApplicationProgramming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.
【中国标准分类号】:N18;P76
【国际标准分类号】:35_100_70;35_160
【页数】:59P.;A4
【正文语种】:英语


【英文标准名称】:Electricalrelays;part21:vibration,shock,bumpandseismictestsonmeasuringrelaysandprotectionequipment;section3:seismictests
【原文标准名称】:电气继电器第21部分:量度继电器和保护装置的振动、冲击、碰撞和地震试验第3节地震试验
【标准号】:IEC60255-21-3-1993
【标准状态】:现行
【国别】:国际
【发布日期】:1993-09
【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/TC95
【标准类型】:()
【标准水平】:()
【中文主题词】:继电器;规范(验收);定义;电气工程;试验;电气保护设备;试验条件;机械试验;地震;保护设备;冲击试验;试验设备;测量继电器;振动试验;恒值冲击;地震防护;地震荷载;连续性试验
【英文主题词】:Continuitytests;Definitions;Earthquakeprotection;Earthquakes;Electricalengineering;Electricalprotectionequipment;Measuringrelays;Mechanicaltesting;Permanentshocking;Protectiondevices;Relays;Seismicloading;Shocktests;Specification(approval);Testequipment;Testing;Testingconditions;Vibrationtesting;Vibrationtests
【摘要】:Describestwoalternativetypesofseismictests:thesingleaxissinesweepseismictest(methodA)andthebiaxialmulti-frequencyrandomseismictest(methodB).Therequirementsareapplicabletoelectromechanicalandstaticmeasuringrelaysandprot
【中国标准分类号】:K33
【国际标准分类号】:29_120_70
【页数】:29P.;A4
【正文语种】:英语