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IEC 61158-5-15-2007 工业通讯网络.现场总线规范.第5-15部分:应用层设备定义.15型元件

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【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-15:Applicationlayerservicedefinition-Type15elements
【原文标准名称】:工业通讯网络.现场总线规范.第5-15部分:应用层设备定义.15型元件
【标准号】:IEC61158-5-15-2007
【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);MODBUS;Opensystemsinterconnection;Operationaltechniques;OSI;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:1.1OverviewInnetworkcommunications,asinmanyfieldsofengineering,itisafactthat“onesizedoesnotfitall.”Engineeringdesignisaboutmakingtherightsetoftrade-offs,andthesetrade-offsmustbalanceconflictingrequirementssuchassimplicity,generality,easeofuse,richnessoffeatures,performance,memorysizeandusage,scalability,determinism,androbustness.Thesetrade-offsmustbemadeinlightofthetypesofinformationflow(e.g.periodic,one-tomany,request-reply,events),andtheconstraintsimposedbytheapplicationandexecutionplatforms.TheType15fieldbusprovidestwomajorcommunicationmechanismsthatcomplementeachotherstosatisfycommunicationrequirementsinthefieldofautomation:theClient/ServerandthePublish/Subscribeparadigms.Theycanbeusedconcurrentlyonthesamedevice.Type15Client/ServeroperatesinaClient/Serverrelationship.Itsapplicationlayerservicedefinitionsandprotocolspecificationsareindependentoftheunderlyinglayers,andhavebeenimplementedonavarietyofstacksandcommunicationmedia,includingEIA/TIA-232,EIA/TIA-422,EIA/TIA-425,HDLC(ISO13239),fiber,TCP/IP,WirelessLANsandRadios.Type15Publish/SubscribeoperatesinaPublish/Subscriberelationship.Itsapplicationlayerservicedefinitionsandprotocolspecificationsareindependentoftheunderlyinglayersandcanbeconfiguredtoprovidereliablebehaviourandsupportdeterminism.ThemostcommonstackisUDP/IP.Thefieldbusapplicationlayer(FAL)providesuserprogramswithameanstoaccessthefieldbuscommunicationenvironment.Inthisrespect,theFALcanbeviewedasa“windowbetweencorrespondingapplicationprograms.”ThispartofIEC61158providescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType15fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.1.2SpecificationsTheprincipalobjectiveofthispartofIEC61158istospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortimecriticalcommunications.1.3ConformanceThispartofIEC61158doesnotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofapplicationlayerentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisapplicationlayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofconformingapplicationlayerprotocolsthatfulfilltheType15applicationlayerservicesasdefinedinthispartofIEC61158.1.4TypeoverviewInnetworkcommunications,asinmanyfieldsofengineering,itisafactthat“onesizedoesnotfitall.”Engineeringdesignisaboutmakingtherightsetoftrade-offs,andthesetrade-offsmustbalanceconflictingrequirementssuchassimplicity,generality,easeofuse,richnessoffeatures,performance,memorysizeandusage,scalability,determinism,androbustness.Thesetrade-offsmustbemadeinlightofthetypesofinformationflow(e.g.periodic,one-to-many,request-reply,events),andtheconstraintsimposedbytheapplicationandexecutionplatforms.
【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】:144P;A4
【正文语种】:英语


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基本信息
标准名称:在数字信道上使用的综合复用设备进网技术要求及检测方法
英文名称:Performance and test methods of the inegrated multiplex equipment using in the digital channel
中标分类: 通信、广播 >> 通信设备 >> 数字通信设备
发布部门:中华人民共和国邮电部
发布日期:1997-09-26
实施日期:1998-01-01
首发日期:1900-01-01
作废日期:1900-01-01
提出单位:邮电部电信科学研究规划院
归口单位:邮电部电信科学研究规划院
起草单位:邮电部数据通信技术研究所
起草人:武庆生
出版社:人民邮电出版社
出版日期:1998-01-01
页数:21页
适用范围

本标准规定厂在数字信道上使用的综合复用设备进网方式、技术要求和检测方法。

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所属分类: 通信 广播 通信设备 数字通信设备
【英文标准名称】:Acrylonitrile-Butadiene-Styrene(ABS)MoldingandExtrusionMaterials,Specificationfor(08.03)
【原文标准名称】:丙烯腈丁二烯苯乙烯共聚物模塑和挤塑材料规范(08.03)
【标准号】:ANSI/ASTMD4673-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【实施或试行日期】:1998-08-17
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;挤压;丙烯腈
【英文主题词】:extruding;acrylonitrile;plastics
【摘要】:ThisclassificationsystemcoversonlyABSmaterialsandABSalloyssuitableforinjectionmoldingandextrusion.Someofthesecompositionsmayalsobesuitableforcompressionmolding.RecycleABSandalloyswillbeaddressedinaseparatestandard.Thisclassificationsystemisnotintendedfortheselectionofmaterials,butonlyasameansofcallingoutmaterialstobeusedinthemanufactureofparts.Materialsaretobeselectedbypersonnelwithexpertiseintheplasticsfieldwheretheeconomics,theenvironmenttobeencountered,theinherentpropertiesofthematerials,thepartdesign,thepartperformancerequired,andthemanufacturingprocesstobeemployedallenterintotheselection.Thepropertiesincludedinthisclassificationsystemarethoserequiredtoidentifythecompositionscovered.Theremaybeotherrequirementsnecessarytoidentifyparticularcharacteristicsimportanttospecializedapplications.ThesewillbeagreeduponbetweentheuserandthesupplierbyusingthesuffixesgiveninSection5.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section12,ofthisclassificationsystem:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThisclassificationsystemandISO2580aretechnicallyequivalentforthosetestscontainedinbothstandards.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语



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