IEC 61158-5-20-2007 工业通讯网络.现场总线规范.第5-20部分:应用层设备定义.20型元件

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【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-20:Applicationlayerservicedefinition-Type20elements
【原文标准名称】:工业通讯网络.现场总线规范.第5-20部分:应用层设备定义.20型元件
【标准号】:IEC61158-5-20-2007
【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】: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;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;过程控制工程;服务设施;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;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Physicallayers;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:1.1OverviewThefieldbusApplicationLayer(FAL)providesuserprogramswithameanstoaccessthefieldbuscommunicationenvironment.Inthisrespect,theFALcanbeviewedasa“windowbetweencorrespondingapplicationprograms.”ThispartofIEC61158providescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType20fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.1.2SpecificationsTheprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortimecriticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofservicesstandardizedasthevarioustypesofIEC61158.ThisspecificationmaybeusedasthebasisforformalApplicationProgramming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.1.3ConformanceThisstandarddoesnotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofapplicationlayerentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisapplicationlayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofconformingapplicationlayerprotocolsthatfulfilltheType20applicationlayerservicesasdefinedinthisstandard.
【中国标准分类号】:N18;P76
【国际标准分类号】:25_040_40;35_100_70;35_160
【页数】:50P;A4
【正文语种】:英语


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【英文标准名称】:Connectorsforfrequenciesbelow3MHzforusewithprintedboards-Part4:Two-partconnectorsforprintedboardshavingcontactsspacedat1,91mm(0,075in)centresandstaggeredterminationsatthatsamespacing(IEC60603-4:1987);GermanversionEN6
【原文标准名称】:印制电路用频率3MHZ以下的连接器.第4部分:带有1,91mm(0,075英寸)触点间距和同样间距下的错位接点的印制电路用间接连接器
【标准号】:EN60603-4-1998
【标准状态】:现行
【国别】:
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:印制电路板;频率;插头;间接的;印制电路;插接件连接;尺寸;连接;量规;电子设备;内孔连接器;额定值;电器连接件;电气工程
【英文主题词】:Connections;Connectoredjoints;Contact;Contactclearance;Dimensions;Electricconnectors;Electricplugs;Electricalengineering;Electronicequipment;Femaleconnectors;Frequencies;Gauges;Indirect;Maleconnectors;Plugs;Printedcircuits;Printed-circuitboards;Ratings;Spaced
【摘要】:
【中国标准分类号】:L30
【国际标准分类号】:31_220_10
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforDocking/DrainPlugandBossAssemblies[Metric]
【原文标准名称】:船坞/泄水孔塞和轴节配件的标准规范(米制)
【标准号】:ASTMF991M-1995
【标准状态】:作废
【国别】:
【发布日期】:1995
【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】:F25.01
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:钢管;壳;轴节配件;泄水孔塞;泄水孔塞配件;排泄塞;排泄塞配件
【英文主题词】:Bossassemblies;Dockingassemblies;Drainplugassemblies;Rudder;Shell;Steelpipe-shipbuildingpipingmaterials;Tankbottomplate;docking/drainplug/bossassemblies,spec
【摘要】:1.1Thisspecificationprovidesdesign,construction,andpurchasingcriteriafordocking/drainplugandbossassemblies.1.2Assembliesareintendedforinstallationinshell,rudder,andtankbottomplatefrom8through38mm.1.3A
【中国标准分类号】:U55
【国际标准分类号】:23_020_10
【页数】:3P.;A4
【正文语种】: