您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS EN 61158-5-15-2008 工业通讯网络.现场总线规范.应用层设备定义.15型元件

作者:标准资料网 时间:2024-05-04 19:43:37  浏览:8955   来源:标准资料网
下载地址: 点击此处下载
【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.应用层设备定义.15型元件
【标准号】:BSEN61158-5-15-2008
【标准状态】:作废
【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】: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);MODBUS;开放系统互连;操作技术;OSI;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);MODBUS;Opensystemsinterconnection;Operationaltechniques;OSI;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:Innetworkcommunications,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.ThispartofIEC61158defineinanabstractwaytheexternallyvisibleserviceprovidedbytheType15fieldbusapplicationlayerintermsofa)anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseoftheFALservice,b)theprimitiveactionsandeventsoftheservice;c)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andd)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.ThepurposeofthispartofIEC61158istodefinetheservicesprovidedto1)theFALuserattheboundarybetweentheuserandtheApplicationLayeroftheFieldbusReferenceModel,and2)SystemsManagementattheboundarybetweentheApplicationLayerandSystemsManagementoftheFieldbusReferenceModel.ThispartofIEC61158specifiesthestructureandservicesoftheType15IECfieldbusApplicationLayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIApplicationLayerStructure(ISO/IEC9545).FALservicesandprotocolsareprovidedbyFALapplication-entities(AE)containedwithintheapplicationprocesses.TheFALAEiscomposedofasetofobject-orientedApplicationServiceElements(ASEs)andaLayerManagementEntity(LME)thatmanagestheAE.TheASEsprovidecommunicationservicesthatoperateonasetofrelatedapplicationprocessobject(APO)classes.OneoftheFALASEsisamanagementASEthatprovidesacommonsetofservicesforthemanagementoftheinstancesofFALclasses.
【中国标准分类号】:M11
【国际标准分类号】:35_100_70;35_160;35_240_50
【页数】:144P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:ULStandardforSafetyElectricalEquipmentForMeasurement,Control,andLaboratoryUse;Part1:GeneralRequirementsALLCOMMENTSDUE:June9,2008
【原文标准名称】:UL安全标准.测量,控制和实验室用电气设备.第1部分:一般要求.评议提交截止日期:2008年6月9日
【标准号】:UL61010-1BULLETIN-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-04-25
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ULStandardforSafetyElectricalEquipmentForMeasurement,Control,andLaboratoryUse;Part1:GeneralRequirementsALLCOMMENTSDUE:June9,2008
【中国标准分类号】:K60
【国际标准分类号】:
【页数】:
【正文语种】:英语


【英文标准名称】:Continuouslyhot-dipzinc-aluminium(ZA)coatedsteelstripandsheet-Technicaldeliveryconditions;GermanversionEN10214:1995
【原文标准名称】:连续热浸镀锌-铝的钢带和钢板.交货技术条件;德文版本EN10214:1995
【标准号】:DINEN10214-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:检验;材料;验收规范;特性;热浸镀锌;定义;扁平轧材;防腐蚀;薄钢板;锌覆层;交货条件;半成品;带材;薄板材;结构钢;铝;钢;改进;覆层;规范(批准);精制;带钢;名称与符号;金属覆层;金属;试验;表面;锌
【英文主题词】:
【摘要】:
【中国标准分类号】:H46
【国际标准分类号】:77_140_50
【页数】:9P;A4
【正文语种】:德语