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BS EN 61158-3-17-2008 工业通信网络.现场总线规范.数据链路层服务定义.17型元件

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【英文标准名称】:Industrialcommunicationnetworks—Fieldbusspecifications—Part3-17:Data-linklayerservicedefinition—Type17elements
【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.17型元件
【标准号】:BSEN61158-3-17-2008
【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;接口(数据处理);因特网协议;IP;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
【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;Interfaces(dataprocessing);InternetProtocol;IP;Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Signals;Specification;Specification(approval);Transmissionmedia
【摘要】:ThispartofIEC61158providescommonelementsforbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbytheType17fieldbusdata-linkLayerintermsofa)theprimitiveactionsandeventsoftheservice;b)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andc)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto?theType17fieldbusapplicationlayerattheboundarybetweentheapplicationanddatalinklayersofthefieldbusreferencemodel,and?systemsmanagementattheboundarybetweenthedata-linklayerandsystemsmanagementofthefieldbusreferencemodel;?specificationsTheprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualdata-linklayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofdata-linkprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ThisspecificationmaybeusedasthebasisforformalDL-Programming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.?ConformanceThisstandarddoesnotspecifyindividualimplementationsorproducts,nordoesitconstraintheimplementationsofdata-linkentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisdata-linklayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofthecorrespondingdata-linkprotocolthatfulfillstheType17data-linklayerservicesdefinedinthisstandard.
【中国标准分类号】:L79;M10
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:34P.;A4
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforHotIsostatically-PressedStainlessSteelFlanges,Fittings,Valves,andPartsforHighTemperatureService
【原文标准名称】:高温设备用热等压不锈钢法兰、配件、阀门和零件的标准规范
【标准号】:ASTMA988-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:高;;;;;;奥氏体不锈钢;管道用;质量要求;高架的;不锈钢;薄板;管道配件;;;钢管;钢管;奥氏-铁素体不锈钢;气雾粉末
【英文主题词】:
【摘要】:
【中国标准分类号】:J15
【国际标准分类号】:49_025_10
【页数】:10P;A4
【正文语种】:英语


【英文标准名称】:Gascylinders-SpecificationsandtestingofLPGcylindervalves-Self-closing.
【原文标准名称】:气瓶.液化石油气(LPG)汽缸阀规格和测试.自动关闭
【标准号】:NFM88-729-2011
【标准状态】:现行
【国别】:法国
【发布日期】:2011-03-01
【实施或试行日期】:2011-03-23
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:灌注;连接尺寸;连接;定义(术语);设计;尺寸规格;出口接管;耐久试验;耐用试验;疲劳;气瓶;储气罐;气阀;识别;泄漏试验;液化石油气;标志;材料;压力试验;压力容器;合格试验;自闭合;规范;规范(验收);取出;测试;测试条件;密封性;阀门
【英文主题词】:Bottling;Connectingdimensions;Connections;Definitions;Design;Dimensions;Dischargeconnections;Endurancetesting;Endurancetests;Fatigue;Gascylinders;Gasholders;Gasvalves;Identification;Leaktests;Liquefiedpetroleumgas;Marking;Materials;Pressuretests;Pressurevessels;Qualificationtests;Self-closing;Specification;Specification(approval);Taking-out;Testing;Testingconditions;Tightness;Valves
【摘要】:
【中国标准分类号】:J74
【国际标准分类号】:23_020_30
【页数】:28P;A4
【正文语种】:其他