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wifi 802.11n 协议标准

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wifi 802.11n 协议标准Contents2. Normative references ........................................................................................................................... 13. Definitions ...........................................................................................................EEE Std802.11n"-2009(Amendment to ieEE Std 802.11-2007as amended by ieee std 802. 11k-2008EEE Std80211r-2008, EE Std802.11y-2008,and IEEE Std 802. 11w-2009)EEE Standard forInformation technology-Telecommunications and informationexchange between systems-Local and metropolitan area networks-Specific requirementsPart 11: Wireless LAN Medium Access Control (MAC)and Physical Layer(PHY SpecificationsAmendment 5: Enhancements for HigherThroughputSponsorLANIMAN Standards committeeof theIEEE Computer SocietyApproved 11 September 2009IEEE-SA Standards boardAbstract: This amendment defines modifications to both the IEEE 802 1 1 physical layer(PHY)andthe IEEE 802 11 medium access control (MAC) sublayer so that modes of operation can be enabledthat are capable of much higher throughputs, with a maximum throughput of at least 100 Mb/s, asmeasured at the Mac data service access point (SAP)Keywords: high throughput, MAC, medium access control, MIMO, MIMO-OFDM, multiple inputmultiple output, PHY, physical layer, radio, wireless local area network, WLANThe Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue New york NY 10016-5997 USACopyright@ 2009 by the Institute of Electrical and Electronics Engineers, IncAll rights reserved. Published 30 October 2009. Printed in the United States of AmericaIEEE is a registered trademark in the U.S. Patent Trademark Office, owned by the Institute of Electrical and ElectronicsEngineers, IncorporatedPDFSBN978-0-7381-60467STD95961Print:|SBN9780-7381-6047-4STDPD95961No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the priorwritten permission of the publisherIEEE Standards documents are developed within the ieee Societies and the standards Coordinating Committees ofthe IEee Standards Association (IEEE-SA) Standards Board. The ieee develops its standards through a consensusdevelopment process, approved by the American National Standards Institute, which brings together volunteersrepresenting varied viewpoints and interests to achieve the final product. Volunteers are not necessarily members of theInstitute and serve without compensation. While the ieee administers the process and establishes rules to promotefairness in the consensus development process, the ieee does not independently evalof any of the information or the soundness of any judgments contained in its standar uate, test, or verify the accuracyUse of an IEEE Standard is wholly voluntary. The ieee disclaims liability for any personal injury, property or otherdamage, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectlyresulting from the publication, use of, or reliance upon this, or any other iEFF Standard documentThe ieee does not warrant or represent the accuracy or content of the material contained herein, and expresslydisclaims any express or implied warranty, including any implied warranty of merchantability or fitness for a specificpurpose, or that the use of the material contained herein is free from patent infringement. IEEE Standards docunentsare supplied‘ASIS.The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchasemarket, or provide other goods and services related to the scope of the ieee Standard. Furthermore, the vintexpressed at the time a standard is approved and issued is subject to change brought about through developments in thetate of the art and comments received from users of the standard. Every ieee standard is subjected to review at leastevery five years for revision or reaffirmation, or every ten years for stabilization. When a document is more than fiverears old and has not been reaffirmed, or more than ten years old and has not been stabilized, it is reasonable toconclude that its contents, although still of some value, do not wholly reflect the present state of the art. Users arecautioned to check to determine that they have the latest edition of any IEEE StandardIn publishing and making this document available, the IEee is not suggesting or rendering professional or othcrservices for, or on behalf of, any person or entity. Nor is the IEEE undertaking to perform any duty owed by any otherperson or entity to another. Any person utilizing this, and any other IEEE Standards document, should rely upon his orher independent judgment in the exercise of reasonable care in any given circumstances or, as appropriate, seek theadvice of a competent professional in deternining the appropriateness of a given IEEE standardInterpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate tospecific applications. When the need for interpretations is brought to the attention of IEEE, the Institute will initiateaction to prepare appropriate responses. Since IEFF Standards represent a consensus of concerned interests, itimportant to ensure that any interpretation has also received the concurrence of a balance of interests. For this reason,IEEE and the members of its societies and Standards Coordinating Committees are not able to provide an instantresponse to interpretation requests except in those cases where the matter has previously received formal considerationA statement, written or oral, that is not processed in accordance with the IEEE-SA Standards Board Operations Manualshall not be considered the official position of ieee or any of its committees and shall not be considered to be, nor berelied upon as, a formal interprctation of the IEEE. At lectures, symposia, seminars, or educational courses, anindividual presenting information on IEEE standards shall make it clear that his or her views should be considered thepersonal views of that individual rather than the formal position, explanation, or interpretation of the IeEeComments for revision of IEEE Standards are welcome from any interested party, regardless of membership affiliationwith IEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together withappropriate supporting comments. Recommendations to change the status of a stabilized standard should include atonale as to why a revision or withdrawal is required. Comments on standards and requests for interpretations shouldbe submitted to the following addressSecretary, IEEE-SA Standards board445 Hoes lanePiscataway, NJ 08854USAAuthorization to photocopy portions of any individual standard for internal or personal use is granted by The Instituteof Electrical and Electronics Engineers, Inc, provided that the appropriate fee is paid to Copyright Clearance CenterTo arrange for payment of licensing fee, please contact Copyright Clearance Center, Customer Service, 222 RosewoodDrive, Danvers, MA 01923 USA; +1978750 8400 PerImission lo photocopy portions of any individual standard foreducational classroom use can also be obtained through the Copyright Clearance CenterIntroductionThis introduction is not part of IEee Std 802. 11n-2009, IEEE Standard for Information technology-Telecommunications and information exchange between systems--Local and metropolitan networks--Specifirequirements-Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) SpecificationsAmendment 5: Enhancements for Higher ThroughputThis amendment specifies enhancements to IEEE 802. 11 physical layer(PHY)and medium access control(MAC) sublayer to provide modes of operation with useful data rates substantially higher than thosepreviously available. Significantly higher IEEE 802. 11 wireless local area network(WLAN) throughput isexpected to improve user experiences for current applications and to enable new applications and marketsegmentsNotice to usersLaws and requlationsUsers of these documents should consult all applicable laws and regulations. Compliance with theprovisions of this standard does not imply compliance to any applicable regulatory requirementsImplementers of the standard are responsible for observing or referring to the applicable regulatoryrequirements. iEEE does not, by the publication of its standards, intend to urge action that is not incompliance with applicable laws, and these documents may not be construed as doing so on that is not inCopyrightsThis document is copyrighted by the Ieee. It is made available for a wide variety of both public and privateuses.These include both use, by reference, in laws and regulations, and use in private self-regulationstandardization, and the promotion of engineering practices and methods. By making this documentavailable for use and adoption by public authorities and private users, the ieee does not waive any rights incopyright to this documentUpdating of IEEE documentsUsers of ieFF standards should be aware that these documents may be superseded at any time by theissuance of new editions or may be amended from time to time through the issuance of amendments,corrigenda, or errata. An official ieee document at any point in time consists of the current edition of thedocument together with any amendments corrigenda or errata then in effect In order to determine whethera given document is the current edition and whether it has been amended through the issuance ofamendmentscorrigendaorcrrata,visittheIeeEStandardsAssociationwebsiteathttp://ieeexplore. ieee. org/xpl/standards. jsp or contact the iEee at the address listed previously.For more information about the IEEE Standards Association or the Ieee standards development process,visittheIeeE-sawebsiteathttp://standards.ieeeorgErrataErrata,ifanyforthisandallotherstandardscanbeaccessedatthefollowingUrl:http://standards. ieee. org/reading/ieee/updates/errata/index. html. Users are encouraged to check this URL forta periodicallyInterpretationsCurrentinterpretationscanbeaccessedatthefollowingUrl:http://standards.ieeeorg/reading/ieee/interp/index htmlCopyright C 2009 IEEE. All rights reservedPatentsAttention is called to the possibility that implementation of this amendment may require use of subjectmatter covered by patent rights. By publication of this standard, no position is taken with respect to theexistence or validity of any patent rights in connection therewith. a patent holder or patent applicant hasfiled a statement of assurance that it will grant licenses under these rights without compensation or underreasonable rates, with reasonable terms and conditions that are demonstrably free of any unfairdiscrimination to applicants desiring to obtain such licenses. Other Essential Patent Claims may exist forwhich a statement of assurance has not been received. The Ieee is not responsible for identifying EssentialPatent Claims for which a license may be required, for conducting inquiries into the legal validity or scopeof Patents Claims, or determining whether any licensing terms or conditions are reasonable or nondiscriminatory. Users of this standard are expressly advised that determination of the validity of any patentrights, and the risk of infringement of such rights, is entirely their own responsibility. Further informationmay be obtained from the ieee Standards associationParticipantsWhen this amendment was sent to sponsor ballot, the IEEe 802. 11 Working Group had the followingofficersBruce P. Kraemer, ChairJon Walter Rosdahl, Vice Chair; Treasurer; and Chair, Task Group mbAdrian P. Stephens Vice chairStephen McCann, Secretary and Chair, Publicity standing Committee and Task group uTerry L. Cole, Technical Editor and Assigned Number AuthorityTeik-Kheong Tan, Chair, Wireless Next Generation Standing CommitteeDavid Bagby, Chair, Architecture Standing CommitteeBruce p. kraemer Co-Chair IMT-Advanced ad hoc commiteeLee armstrong, Chair, Task Group pDonald E Eastlake Ill, Chair;, Task Group sNeeraj Sharna, Chair, Task group lDorothy V. Stanley, Chair, Task Group v and IETF Ad hoc CommitteeJesse Walker, Chair. cTl Ad hoc committeePeter Ecclesine, Chair, Task group yMenzo Wentink, Chair, Task group zGancsh Venkatesan, Chair, Task Group aaEldad Perahia, Chair, Very High Throughput Study groupDarwin Enger, Co-Chair. IMT-Advanced ad hoc committeeWhen this amendment was sent to sponsor ballot, Task Group n had the following officersBruce P Kraemer. chairSILi. vice chairGarth Hillman and Jon Walter Rosdahl, SecretaryAdrian P. Stephens, Technical editorWhen this amendment was sent to sponsor ballot, the IEeE 802. 1l Working Group had the followingmembershiOsama S. aboulmagdMalik audchAmit bansalTomoko adachiCcrt A, awatoJohn. barrAlok aggarwalDavid bagbGal bassonCarlAldanaMichael bahrussa BavafaThomas AlexanderFan baiTuncer BaykasLee r. ArmstrongGabor BaikoJohn L. BenkoAlex ashleyDennis j. bakerMathilde benvenisteCopyright C 2009 IEEE. All rights reservedBiorn A. berkeRobert Y huangChiu ngoDaniel borgesDavid hunterEero nikulaAnthony braskichYasuhiko inoueRichardH. noensJoseph brennanAkio isoHideaki odagiriDavid britzJunghoon JeeJisung OhG. BumillerHongseok JeonChandra s. olsonNancy Cam-WingetYeonkwon JeongYouko omorNecati CanpolatJorjeta G JetchevaSatoshi oyamaJavier cardonaLusheng jiRichard H. PaineDouglas s ChanDaniel JiangAuld. palaniveluClint F. ChaplinPadam AflChangmin ParkCarl W. KainJungsoo parkMinho CheongNaveen K KakanMinyoung ParkMasato katoⅤ ijaykumar PatelNakjungDouglas KanBcminih. peirisLiwen chuRichard H. KennedyEldad perahiaTerry L. ColeJohn KenneJames e. petranovichRyon K. ColemanStuart 3. KerryAl PetrickCharles IJoonsuk kinFahd pirzadaTodor CooklevKyeongpyo KimJames d. portaroXavier p CostaSeong S. kimHenry s. PtasinskiDavid E CypherYongsan KimRene purnadiMarc de courvilleJarkko kneckChang w. PyoRolf J de vegtMark m. kobayashiEmily H QiTheodorus denteneerFumihide KojimaLuke QianJeremy de vriesTom KolzeHuyu QuSusan DickeyBruccp KJim e raabZhiming DingJohannes P KruysⅤ nuth raiYoshiharu doThomas KuehnelAli RaissiniaJohn dorseyThomas m. KuriharaHarish ramamurthyRoger P durandStephen G raymentSrinivasa duvvuriEdwin kwonLeonid razoumovDonald e. eastlakeZhou lanIvan reePeter Ecclesiaejeremy A landtEdward reussMichael ellisJoseph P. lauerAlex reznikStephen P. EmeottTae H. LeeRandal roebuckMarc emmelmannWooyoung leeJon walter rosdahlDarwin EngwerJoseph levyRichard royJoseph epsteinSheung liAlexander safonovⅤ inko ercegPaul linKazuyuki sakodaLars p. falkIlang liuHemanth sampathRobert fanfcllMichael livshitzKatsuyoshi SatoStefan fechterPeter LocHirokazu sawadaPaul h. feinberDaniel lubarDon schultzMatthew FischerAnthony f. maidaYongho SeokWayne k. FisherJakub majkowskiHuairong shaoRoberta fracchiAlastair MalarkyNeeraj sharmaRyuhei FundaJouni K. malinenStephen J ShellhammerMatthew gastAlexander maltsevlan SherlockJames p gilbBill marshallKai shiJeffrey gilbertRoman m. maslennikovShusaku shimadaReinhard GlogerSudheer mattaFrancois simonDavid goodallStephen Mc cannHarkirat SinghTugrul guenerJustin p mcnewGraham K. SmithJianlin gven meseckeMatt smithMark hamiltonRobert r. millerYoo-Seung SongC.J. HanseMichael monteKapil seBrian d. hartRajendra T. moortiVinay SridharaAmer A haHitoshi moriokaDorothy stanleⅤ egard hasselPeter MurrayAdrian P. StephensRobert f heileAndrew milesDavid S Stephenson〔 undo r. HertzRohit nabarCarl R. StevensonJunling hiJohn stineWendong huKengo nagataGuenaelt strutCopyright C 2009 IEEE. All rights reservedChin s SumGanesh VenkateHarry R. worstellEiji TakagiDalton t.Ⅴ ictorPengfei xiaMineo takaiGeorge A. vlantisAkira yamadaTcik-Khcong TanCssc r. walkerTakeshi yamamotoAllan thomsonunlWangmoya yamauraJerry thrasherngEric okuboCraig d. WarrenSu K. YongAlexander TolpinFujio WatanabeSeiji YoshioJason trachewskyPatrick WayeChristopher YoungSolomon b. traininMenzo m. wentinkArtur zaksRichard D. Van NeeFrank whettenHongyuan zhangAllert van zelstKyle williamsHuimin zhangMathieuⅤ arlet-AndmJames worshamJing zhiPrabodh varshneyJuan ZunigaContributions to this amendment was received from the following individualsBill ablⅵ inko ErcegPatrick labbeSantosh abrahamMustafa rozJoseph lauerTomoko adachiStefan fechterDongjun leeDmitry akhmetovPaul feinbergLin-Nan leeCarlos aldanaMatthew fischereeDave andrusGuido frederiksSok-kyu LeeMicha anholtTakashi FukagawaZhongding leiTsuguhide AokiPatrick FungJoseph levyYusuke asarEdoardo gallizioScott leyonhjelGeert awaterJames gardnerPen liDavid BaDevis gattSheung LiRaja banerjeaDavid HedbergYuan liKaberi banerieeGarth hillmanKevin liaoAmit bansalJin-Meng hoIsaac limGal bassonDale hocevarAlfred linAnui batraLouise hooAlbert liuJohn benkoMuhammad akramDer-Zheng liuMathilde benvenisteYasuhiko inoueMichael livshitzBjorn BjerkeKaz ishidaYufei BlakenshipTakashi ishidoshiroPeter LojkoDaniel borgesLakshmi lyerHui-Ling LouDouglas chanEric JacobsonAdina matacheJerry ChangYuh-Ren jauhLaurent mazetJohn ChangTaehyun JeonWilliam mcfarlandJeng-Hong ChenJari JokelaDarren mcnamaraStephen ChenVKJonesIrina medvedevYi-Ming ChenPadam AflArnaud meylanPei-ju ChiangNaveen KakaniMorgan mikFrancois chinSriniavs kandalaSeungwook minWoon Hau ChinAteet KapurPatrick mo上 mily chouAssaf KasherAndy molischLiwen chuMasato katoR. Tushar moortiKeith ChuggJohn KetchumMike moretonBrian ClassonJoonsuk KYuichi moriokaSean CoffeyPansop KimMarkus muckGabriella convertinoYoungsoo KimSyed Aon mujtabaMarc de courvilleGuenter KleindlAndrew mylesRolf de vegtKiyotaka KobayashiRohit nabarFranz dielacherCenk Koselhasa NagaiYoshiharu doiBruce p KraemerKengo NagataJohn deThomas KuehnelSeigo NakaodouglasTakushi KunihiroSanjiv nandaPeter ecclesiaeJoe KwakChiu nDarwin EngwerJoseph kwakAjit NimbalkerLeonid epsteinEdwin kwonGunnar NitscheCopyright C 2009 IEEE. All rights reservedHuaning NiuErik SchylanderRichard van neeIvan oakesMichael sealsNico van waesYoshihiro ohtanilual-Rong ShaoAllert van zelstEric OjardSuman sharmaAndres vila casadoTakeshi onizawaSteve shellhammerGeorgeⅵ lantisJob oostveenIan SherlockTimothy WakeleyFabio osnatoMasaaki shidaJesse walkerKafle padamTakashi shonoBrad wallacePratima paiSebastien SimoensMark wallaceArul palaniveluMassimiliano sitiRod waltonSubra parameswaraDoug SmithQi WThomas pareMatt smithXiaowen WangJean-Noel PatillonAmjadDeric WatersWei-Chung PengRobert staceyMark WebsterEldad perahiaAdrian P. StephensMenzo WentinkJim petranovichRichard WeseKrishna madhavan pillaiVictor StolpmanMike WilhoyteMadhavan pillaiSumei sunTimothy WongAngelo PoloniXiantao sunJames WoodyattNeeraj poojaryShravan surineniHenry ptasinskiIlan sutskoverAriton XhafaAleksandar PurkovicEiji Takagio xiaLuke oianMasahiro takasTomoya YamauraAli RaissiniaSeiichiro TakahashiEric YangSthanunathan ramakrishnanDaisuke takedaWen-Chang YehHarish RamamurthyTeik-Kheong TanChristopher YoungSridhar rameshYasuhiro TanakaHeejung YuRaffaele rivaStephan ten brinkArtur ZaksJon walter rosdahlGanesan ThiagarajanEldad zeiraStephanie Rouquette-LeveilEric OkuboHongyuan zhaMike rudeTim TowellJin ZhangJohn sadowskiJason trachewskyNing ZhangAtul salhotraSolomon traininQuan ZhouVincenzo scarpaDavid tungJohnny ZweigDonald schultzStefano valleJim syrenThe following members of the individual balloting committee voted on this amendment. Balloters may havevoted for approval, disapproval, or abstentionOsama aboulmagdBill cannonSouray duttaTomoko adachiJing CaoRichard eckardAlok AggarwalEdward CarlesCarl EklundThomas alexandeJames CarloStephen emeottRichard AlvinJuan CarreonMarc emmelmannEdward ChalfDarwin EngwcButch AntonDouglas s ChanJoseph epsteinDanilo antonelliKuor-Hsin ChangRobert fanfelleClint ChaplinShahin FarahaniDavid BagbyWei-Peng ChenShulan FengGabor BaikoYung-Mu ChenOddgeir FikstvedtMatthew ballHong ChengMatthew fischerRaja banerjeaAik ChindapoPrince francisVered BKeith ChowAvraham FreedmanJohn barrLiwen ChuDevon gaylePhilip beecherRyon ColemanMichael GeipelMathilde benvenisteCharles cookTheodore Georgantasharry bimsTodor CookiePieter -Paul giesbertsBjorn BjerkeHelge CowardJames gilbMonique brownJoseph decuirReinhard glogerRussell dietzMariana goldhamerWilliam byrdThomas dineenScrgiu gomaPctcr. calderonJohn dorseyDavid goodallCopyright C 2009 IEEE. All rights reserved

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  • Canopen控制伺服驱动中文资料(使用者手册)
    Canopen协议控制埃斯顿伺服驱动使用者中文版手册,可以帮助初学者理解canopenEsTUN埃斯自动化伺服使用于册目录第章概述1.1cAN主要相关文档1.2本手册使用的术语和缩语1.3 CANopen概述第章接线和连接第章通讯3.1cAN标识符分配表3.2服务数据对象SD03.3过程数据对象PD03.4SYNC报文3.5 Emer gency报文3.6 HEARTBEAT报文3.7网络管理(NMT)第章单位换算单元4.1单位换算相关参数4.2 Position factor4.3 Ve locity factor4. 4 Acceleration factor第章位置控制功能第章设备控制6.1控制状态机6.2设备控制相关参数6. 2. 1 Contro/word6.2.2 Statusword6. 2.3 Shutdown option code6.2.4 Disab/e operation option code6.2.5 Quick stop option code6.2. 6 Ha/t option code6.2.7 Fault reaction option code第章控制模式7.1控制模式相关参数7. 1.1 Modes of operation7. 1.2 Modes of operation disp/ay7.2回零模式( HOM I NG MODE)7.2.1回零模式的控制字7.2.2回零模式的状态字EsTUN埃斯自动化伺服使用于册7.2.3回岺模式相关参数7.2.4回零方法3速度控制模式(PROF| LE VEL0 CITY MODE)7.3.速度模式的控制字7.3.2速度模式的状态字7.3.3速度控制模式相关参数7.4位置控制模式(PR0FLEP0s|T0NM0DE)74.1位置模式的控制字7.4.2位置模式的状态字7.4.3位置控制相关参数7.4.4功能描述7.5位置插补控制模式( I NTERPLATION P0S| TION MODE)7.5.1位置插补馍式的控制字7.5.2位插补模式的状态字7.5.3位置插林控制关参数7.5.4功能描述第章通讯相关参数控制模式第章通讯例程9.1S00操作2PD0配置9.3位置控制例子( Profile positon mode)4位置插补控制( Interplate position Mode)9.5回零第章其他功能10.1总线输入10.2占位对象附录对象字典表EsTUN埃斯自动化伺服使用于册第章概述1CAN主要相关文档2本手册使用的术语和缩语控制器局域网在自动化国际用户和制造商协会中的通讯对象,在网络上的一个传输单元。数据在内部沿着整个网络传输。本身是消息帜的一部分。电子数据表,在配置网络时需要使用的一个节点专用格式文件。文件包含关于节点及其字典对象(参数)的常规信息。层管理,给定模型中的应用层服务元素之一。它用来配置给定模型中每层的参数网络管理给定模型中的应用层服务元素之一。它负责网络上的初始化、配置和故障处理。在本地存储某个设备所识别的所有通讯对象()。参数参数是驱动器的一个操作指令。可以使用驱动器操作面板或者诵过来读取和修改参数进程数据对象,一种用来传输时间关键数据,比如控制命令、给定值和实际值。表示只读访问。表示读写访问EsTUN埃斯自动化伺服使用于册服务数据对象,一种用来传输非时间关键数据,比如参数。3 CANopen概述是一个基于(控制局域网)串行总线系统和(应用层)的高层协议假定相连设备的硬件带有一个符合标准的收发器和一个控制器。通讯协议包括周期和事件驱动型通讯,不仅能够将总线负载减少到最低限度,而且还能确保极短的反应时间。它可以在较低的波特率下实现较高的通讯性能,从而减少了电磁兼容性问题,并降低了电缆成本设备协议定义了直接访问变频器参数机制以及时间关键进程数据通讯满足(自动化中的)标准(变频器和运动控制),只支持刮造商专用操作模式。所用的物理介质是符合标准,采用分驱动机制和公共反馈的双线总线。总线的最大长度取决于通讯速度,具体规定如下通讯波特率最大总线长度从理论上来说,最多可以有个节点。不过,在实际应用中,最大节点数量取决于所用收发器的性能。更多信息可参见自动化国际用户和制造商协会的文献(EsTUN埃斯自动化伺服使用于册第章接线和连接通讯用连接器的端子排列端子记号名称功能保留通讯用端子隔离地通讯用端子通讯用端子通讯用端子注:的、引脚不能短接在一起。通讯用连接器的端子排列端子记号名称功能保留通讯用端子隔离地通讯用端子通讯用端子通讯用端子呕动器总是作为通讯电缆输入端子,总是作为通讯电缆输出端子(如昊还需连接从站,电缆从该端子连接到下一从站设备;如果不需连接其他从站,可以在该端子加终端电阻)。多台驱动器连接时,严禁直连任意台驱动的举例,网络由三台驱动器组成,电缆接线如下驱动器的的→驱动器的,的驱动器的欧终端电阻总线线路必须用在和线之间每端连接的欧姆()电阻来终接,如下所示。CAN-SHIELDCAN-SHIELDICAN-SHIELDCAN-GNDCE CAN-GND XXCAN-GND120g2CAN-HCAN-HCAN-H1209总线电缆请选用有两对双绞线的带屏蔽层电缆:一对双绞线分别接和,另外一对双绞线直接接EsTUN埃斯自动化伺服使用于册第章通讯提供了所有的网络管理服务和报文传送协议,但并没有定义对象的内容或者正在通讯的对象的类型(它只定义了,没有定义),而这正是切入点。是在基础上开发的,使用了通讯和服务协议子集,提供了分布式控制系统的一种实现方案。在保证网络节点互用性的同时允许节点的功能随意扩:或简单或复杂。的核心概念是设备对象字典(),在其它现场总线)系统中也使用这种设备描述形式。通讯通过对象字典()能够访问驱动器的所有参数。注意对象字典不是的部分,而是在中实现的。通讯模型定义了如下几种报文(通讯对象)缩写详称说明用于非时间关键数据,比如参数用于传输时间关键进程数据(给定值、控制字、状态信息等)。用于同步节点。用于传输驱动器的报警事件。用于网络管理。用于监测所有节点的生命状态通过数据帧在主机(控制器〕和总线节点之间传输数据。下图说明了数据帧的结构。仲裁域帧头控制域数据域校验域应答域帧尾(通讯对象标识符)(远程请求或位本驱动器暂不支持远程帧。其中(通讯对象标识符)分配:功能码(节点地址)STUN埃斯自动化伺服使用于册3.1CAN标识符分配表功能码相应通讯参数通讯对象(进制)进制在中的索引(发送)(接受)(发送)(接受)(发送)(接受)(发送)(接受)(发送)(接受)注意的发送接受是由()节点观察的。本驱动器的支持个发送个接受。EsTUN埃斯自动化伺服使用于册3.2服务数据对象SD0用来访问一个设备的对象字典。访问者被称作客户对象字典被访问且提供所请求服务的设备被称作服务器客户的报文和服务器的应答报文总是包含字节数据(尽管不是所有的数据字节都一定有意义)。一个客户的请求一定有来自服务器的应答。有种传送机制加速传送(最多传输字节数据分段传送(传输数据长蒉大于字节基本结构如下命令对象索引对象子索引报文对参数读写操作格式Read commandsWrite commandsLOW-Byte of main index(hex)High-Byte of main index(hex)UINT8/NT8Subindex(hex)Token for 8 bitCommand 40 IXO X1 su2FhIDⅨX1sUDoAnswer4Fn IXO IX1 SU DO60hIoⅨX1sUUINT16/INT16Token for 8 BitToken for 16 BitCommand40nX0Ⅸ1sU2BhⅨ0Ⅸ1 SU DO D1Answer4BnIX0Ⅸ1SUD0D160hl0Ⅸ1SUToken for 32 BitUINT32/NT32Token for 16 BitCommand 40Xo X1 SU23IoⅨX1 SU DO D1D2D3Answer43nⅨ0Ⅸ1SUD0D1D2D360hDXoⅨX1sUToken for 32 Bit举例
    2020-12-12下载
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  • LED封装(三维PCB封装库)AD用PCB封装库
    LED封装(三维PCB封装库)AD用PCB封装库,作者主页下有全套的三维PCB封装库,欢迎大家下载使用。文件为作者千辛万苦整理的,请大家自用,不要随意传播,谢谢!~
    2020-11-28下载
    积分:1
  • 车用倒车雷达设计(基于51单片机)
    倒车雷达是汽车泊车或者倒车时的安全辅助装置,能以声音或者更为直观的显示告知驾驶员周围障碍物的情况,解除了驾驶员泊车、倒车和起动车辆时前后左右探视所引起的困扰,并帮助驾驶员扫除了视野死角和视线模糊的缺陷,提高驾驶的安全性。本设计利用ATMEL公司的AT89C51单片机、超声波传感器测距实现超声波倒车雷达。利用LED和发光二极管表示传感器探测范围内是否有障碍物,当在探测范围内有障碍物时,发光管以一定频率闪烁,闪烁的频率以距离定,距离越近频率越高。同时蜂鸣器提示报警,探测并指明障碍物距离。
    2021-05-06下载
    积分:1
  • 杂波抑制CLEAN算法
    关于杂波抑制的一种算法,clean算法是一种比较实用的杂波抑制算法
    2020-11-28下载
    积分:1
  • process SPSS下的插件
    SPSS下的一款插件 可以解压后通过SPSS安装到SPSS上 免费插件
    2020-12-11下载
    积分:1
  • 三维比例导引MATLAB程序
    比例导引三维仿真轨迹 ,matlab程序 ,仿真效果不错,对弹道仿真很有帮助
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  • LQG主动悬架 maltab simulink实现
    用matlab m文件以及simulink实现LQG主动悬架设计和仿真
    2020-06-25下载
    积分:1
  • 捷联惯导仿真程序-MATLAB源代码
    捷联惯导仿真程序-MATLAB源代码%飞行轨迹仿真%加速度计输出,陀螺输出,及捷联惯导系统输出%捷联惯导系统 %姿态矩阵初值%位置矩阵 %四元数计算
    2020-12-06下载
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  • 基于matlab的指纹识别系统
    matlab实现指纹识别系统,毕业设计论文完整版
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  • 基于IEEE754标准的浮点乘法器
    本设计是基于fpga的浮点乘法器设计,两个浮点数用ieee754标准表示,程序采用的verilog语言
    2021-05-06下载
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