热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

BS EN 61158-4-7-2008 工业通讯网络.现场总线规范.数据链路层协议规范.7型元件

作者:标准资料网 时间:2024-05-18 03:43:27  浏览:9817   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—Part4-7:Data-linklayerprotocolspecification—Type7elements
【原文标准名称】:工业通讯网络.现场总线规范.数据链路层协议规范.7型元件
【标准号】:BSEN61158-4-7-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【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;数据设备;数据传送;数字的;数字数据;数字工程;数字信号;电子数据处理;电气工程;电子仪器;电子系统;字段总线;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;物理层;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol;WorldFIP
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inasynchronously-startingcyclicmanner,accordingtoapre-establishedschedule,andb)inacyclicoracyclicasynchronousmanner,asrequestedeachcyclebyeachofthosedata-linkentities.Thusthisprotocolcanbecharacterizedasonewhichprovidescyclicandacyclicaccessasynchronouslybutwithasynchronousrestartofeachcycle.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddatalinkserviceprovider;b)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thispartofthisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements.
【中国标准分类号】:N17
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:122P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-Citizens′Band(CB)radioequipment-Part2:HarmonizedENcoveringtheessentialrequirementsofarticle3.2oftheR&TTEDirective(EndorsementoftheEnglishversionEN300433-2V1.3.1(
【原文标准名称】:电磁兼容性和无线电频谱事宜(ERM).市民波段(CB)无线电设备.第2部分:涵盖R&TTE指南第3.2条基本要求的统一EN(英文版EN300433-2V1.3.1核准本(
【标准号】:DINEN300433-2-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Amplitudemodulation;Characteristics;Citizens'band;Communicationequipment;Consistency;Datatransfer;Doublesideband;Electricalengineering;Electromagneticcompatibility;Electronicengineering;EMC;Emission;ETSI;Frequencies;Guidelines;Instruments;Interferingemissions;Land-mobileservices;Measurement;Methods;Mobileradiosystems;Radio;Radioengineering;Radioequipment;Radionetworks;Receivers;Singlesideband;Specification(approval);Technology;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Testing;Transmissiontechnique;Transmitters;Wirelesscommunicationservices
【摘要】:
【中国标准分类号】:M36;L06
【国际标准分类号】:33_060_20
【页数】:2P;A4
【正文语种】:德语


Product Code:SAE MA3376
Title:Bolts and Screws, UNS G87400 Tensile Strength 860 MPa & 1000 MPa Procurement Specification, Metric
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:This specification covers metric bolts and screws made from a low alloy steel of the type idenfified under the Unified Number System as UNS G87400. Te following specifications designations and their properties are covered: MA3376 860 MPa minimum ultimate tensile strength at room temperature MA3376-1 1000 MPa minimum ultimate tensile strength at room temeprature MA3376-2 860 MPa minimum ultimate tensile strength at room temeprature 516 MPa minimum ultimate shear strength at room temperature MA3376-3 1000 MPa minimum ultimate tensile strength at room temperature 600 MPa minimum ultimate shear strength at room temperature. Primarily for joining parts where minimum tensile strengths of 860 MPa and 1000 MPa are required. Also, for joining parts where minimum shear strength of 516 MPa and 600 MPa are required.

版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1