BS EN 61158-3-7-2008 工业通信网络.现场总线规范.数据链路层服务定义.7型元件

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【英文标准名称】:Industrialcommunicationnetworks—Fieldbusspecifications—Part3-7:Data-linklayerservicedefinition—Type7elements
【原文标准名称】:工业通信网络.现场总线规范.数据链路层服务定义.7型元件
【标准号】:BSEN61158-3-7-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-01-31
【实施或试行日期】:2009-01-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【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;数据服务;数据传送;定义;数字的;数字数据;数字工程;EDP;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);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;信号;规范;规范(验收);传输媒质;WorldFIP
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Signals;Specification;Specification(approval);Transmissionmedia;WorldFIP
【摘要】:ThispartofIEC61158providescommonelementsforbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbytheType7fieldbusdata-linklayerintermsofa)theprimitiveactionsandeventsoftheservice;b)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andc)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto?theType7fieldbusapplicationlayerattheboundarybetweentheapplicationanddata-linklayersofthefieldbusreferencemodel,and?systemsmanagementattheboundarybetweenthedata-linklayerandsystemsmanagementofthefieldbusreferencemodel.Theprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualdata-linklayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofdata-linkprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ThisspecificationmaybeusedasthebasisforformalDL-Programming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.Thisstandarddoesnotspecifyindividualimplementationsorproducts,nordoesitconstraintheimplementationsofdata-linkentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisdata-linklayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofthecorrespondingdata-linkprotocolthatfulfillstheType7data-linklayerservicesdefinedinthisstandard.
【中国标准分类号】:M10;L79
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:40P.;A4
【正文语种】:英语


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基本信息
标准名称:铁路车辆名词术语 给水,排水装置
英文名称:Rolling stock terms; Water supply and draining equipment
中标分类: 铁路 >> 铁路车辆 >> 铁路车辆综合
ICS分类: 铁路工程 >> 铁路车辆
替代情况:GB 4549.1-1984;被GB/T 4549.8-2004代替
发布日期:1984-07-03
实施日期:1985-05-01
首发日期:1984-07-03
作废日期:2004-12-01
归口单位:铁道部
起草单位:铁道部四方所
出版日期:1900-01-01
页数:0
适用范围

被GB/T 4549.8-2004代替

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所属分类: 铁路 铁路车辆 铁路车辆综合 铁路工程 铁路车辆
【英文标准名称】:Smallcraft-Man-overboardpreventionandrecovery
【原文标准名称】:小艇.人员落水的预防和救护
【标准号】:ISO15085-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC188
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;船舶;滑动;安全装置;围栏;安全;人员落水;护栏;甲板设备;设计;造船;事故预防;小型船舶;安全要求;滑动防护;营救;恢复
【英文主题词】:Accidentprevention;Accidents;Deckequipment;Definitions;Design;Guardrails;Manoverboard;Protectiondevices;Railings;Recovery;Rescue;Safety;Safetydevice;Safetyrequirements;Shipbuilding;Slip;Slippingsecurity;Smallcraft;Specification(approval);Strengthofmaterials;Vessels
【摘要】:ThisInternationalStandardspecifiesthedesignaswellastheconstructionandstrengthrequirementsforsafetydevicesandarrangementsintendedtominimizetheriskoffallingoverboard,andrequirementstofacilitatereboarding.Itdescribesmeanswhichcanbeusedindividuallyorcombinedtoachievetheseobjectives,andappliestosmallcraftofupto24mlengthofhull.ThisInternationalStandardisnotapplicabletothefollowingboattypes:—aquatictoys;—canoes,kayaks,orotherboatswithabeamlessthan1,1m;—personalwatercraft,coveredbyISO13590;—inflatableboatswithahulllengthoflessthan8m,coveredbyISO6185.
【中国标准分类号】:U18
【国际标准分类号】:47_080
【页数】:21P;A4
【正文语种】:英语