SEA J1939 英文版

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SEA J1939 标准英文原版 高清
<link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span><span class="ff2 fs1">SURFACE </span></div><div class="t m0 x2 h2 y2 ff3 fs1 fc0 sc0 ls0 ws0"> <span class="ff2 fs2 ls1">J1939</span> </div><div class="t m0 x3 h2 y3 ff3 fs3 fc0 sc0 ls0 ws0"> <span class="_ _1"> </span><span class="ff2 fs1 ls2">VEHICLE<span class="ff3 ls3"> <span class="fc1 sc0"> </span></span></span></div><div class="t m0 x3 h2 y4 ff3 fs1 fc0 sc0 ls0 ws0"> <span class="_ _2"> </span><span class="ff2 ls4">RECOMMENDED </span></div><div class="t m0 x3 h2 y5 ff2 fs1 fc0 sc0 ls4 ws1"> PRACTICE<span class="ff1 fs0 ls5 ws0"> <span class="fc1 sc0"> </span></span></div><div class="t m0 x3 h3 y6 ff1 fs4 fc0 sc0 ls0 ws0"> </div><div class="t m0 x3 h4 y7 ff1 fs4 fc0 sc0 ls0 ws0"> <span class="_ _3"> </span><span class="fs5"> <span class="_ _4"> </span><span class="ff4"><span class="fc1 sc0"> </span></span></span></div><div class="t m0 x3 h4 y8 ff4 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h4 y9 ff4 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h4 ya ff1 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x5 h5 yb ff1 fs6 fc0 sc0 ls6 ws2">SAE Technical Standards Board<span class="_ _5"></span> Rules provide that<span class="_ _5"></span>: “This report <span class="ls7 ws3">is <span class="_ _5"></span>published by SAE to advance <span class="_ _5"></span>the state of technical and engine<span class="_ _5"></span><span class="ls8 ws4">ering sciences. The use<span class="_ _5"></span> of this report is </span></span></div><div class="t m0 x5 h5 yc ff1 fs6 fc0 sc0 ls8 ws5">entirely voluntary<span class="_ _5"></span>, and its applicability and suitability<span class="_ _5"></span> for any particular u<span class="_ _5"></span>se, including any patent in<span class="_ _5"></span>fringement arising the<span class="ls9 ws6">refrom<span class="_ _5"></span>, is the sol<span class="_ _5"></span>e responsibility<span class="_ _5"></span> of the user.” </span></div><div class="t m0 x5 h5 yd ff1 fs6 fc0 sc0 ls6 ws7">SAE reviews each<span class="_ _5"></span> technical report at le<span class="_ _5"></span>ast every five y<span class="_ _5"></span>ears at whic<span class="lsa ws8">h time it ma<span class="_ _5"></span>y be reaffirmed, revised<span class="_ _5"></span>, or cancelled. SAE inv<span class="_ _5"></span><span class="ls0 ws9">ites your written <span class="_ _5"></span>comments and suggestions. </span></span></div><div class="t m0 x5 h5 ye ff1 fs6 fc0 sc0 ls6 ws7">Copyright 2005 SAE In<span class="_ _5"></span>ternational </div><div class="t m0 x5 h5 yf ff1 fs6 fc0 sc0 lsb wsa">All rights reserved. No part of this publi<span class="_ _5"></span>cation may be reproduced, <span class="lsc wsb">stored in a retriev<span class="_ _5"></span>al system or transmitted, in any form or<span class="ls8 wsc"> by any<span class="_ _5"></span> means, electronic, mechanical, photo<span class="_ _5"></span>copying, </span></span></div><div class="t m0 x5 h5 y10 ff1 fs6 fc0 sc0 lsd wsd">recording, or other<span class="_ _5"></span>wise, without th<span class="_ _5"></span><span class="ls8 ws5">e prior written permi<span class="_ _5"></span>ssion of SAE. </span></div><div class="t m0 x5 h5 y11 ff4 fs6 fc0 sc0 lse wse">TO PLACE A DOCU<span class="_ _5"></span>MENT ORDER: <span class="_ _6"> </span>Tel: 877-60<span class="_ _5"></span>6-7323 (inside USA and Canada) </div><div class="t m0 x5 h5 y12 ff4 fs6 fc0 sc0 lsf wsf"> <span class="_ _7"> </span>Tel: 724-77<span class="_ _5"></span>6-4970 (outside USA<span class="_ _5"></span>) </div><div class="t m0 x5 h5 y13 ff4 fs6 fc0 sc0 lsa ws8"> <span class="_ _7"> </span>Fax: 724-776-0<span class="_ _5"></span>790 </div><div class="t m0 x5 h5 y14 ff4 fs6 fc0 sc0 ls10 ws10"> <span class="_ _7"> </span>Email: custsvc@sae.org </div><div class="t m0 x5 h6 y15 ff5 fs3 fc0 sc0 ls11 ws11">SAE WEB ADDRESS: <span class="_ _8"> </span>http://www.sae.org </div><div class="t m0 x3 h3 y16 ff1 fs4 fc0 sc0 ls0 ws0"> </div><div class="t m0 x6 h7 y17 ff3 fs5 fc0 sc0 ls12 ws12"> Issued <span class="_ _9"></span> <span class="_ _4"> </span>2000-04 </div><div class="t m0 x6 h7 y18 ff3 fs5 fc0 sc0 ls13 ws13"> Revised <span class="_ _a"> </span>2005-01 </div><div class="t m0 x6 h7 y19 ff3 fs5 fc0 sc0 ls14 ws0"> </div><div class="t m0 x6 h7 y1a ff3 fs5 fc0 sc0 ls15 ws14"> Superseding J193<span class="_ _5"></span>9 AUG2003 </div><div class="t m0 x3 h8 y1b ff6 fs2 fc0 sc0 ls16 ws0">Foreword </div><div class="t m0 x3 h7 y1c ff3 fs5 fc0 sc0 ls17 ws15">This series of SAE Recommended Practices has been developed by the Tr<span class="ls18 ws16">uck &amp; Bus Control and </span></div><div class="t m0 x3 h7 y1d ff3 fs5 fc0 sc0 ls19 ws17">Communicati<span class="_ _5"></span>ons Network Subc<span class="ls1a ws18">ommittee of the Truck &amp; Bus Electr<span class="_ _b"></span>ical &amp; Electronics Committee<span class="_ _b"></span>. The </span></div><div class="t m0 x3 h7 y1e ff3 fs5 fc0 sc0 ls19 ws19">objectives of <span class="_ _5"></span>the subcommittee<span class="_ _5"></span> are to develop i<span class="_ _5"></span>nformation reports, recommen<span class="_ _5"></span>ded practice<span class="_ _5"></span>s and standards </div><div class="t m0 x3 h7 y1f ff3 fs5 fc0 sc0 ls1b ws1a">concerned wi<span class="_ _5"></span>th the requiremen<span class="_ _5"></span>ts, design, and usage <span class="_ _5"></span>of ECUs which <span class="_ _5"></span>transmit electrical si<span class="_ _5"></span>gnals and control<span class="_ _5"></span> </div><div class="t m0 x3 h7 y20 ff3 fs5 fc0 sc0 ls1c ws1b">informat<span class="_ _b"></span>ion among vehicle com<span class="_ _b"></span>ponents. The us<span class="_ _b"></span>age of<span class="ls1b ws17"> these Recommended<span class="_ _5"></span> Practices is not limited to </span></div><div class="t m0 x3 h7 y21 ff3 fs5 fc0 sc0 ls1d ws1c">truck and bus applicati<span class="_ _5"></span>ons; other applications <span class="_ _5"></span>ma<span class="ls1e ws1d">y be accommodated with immediate suppo<span class="_ _5"></span>rt being </span></div><div class="t m0 x3 h7 y22 ff3 fs5 fc0 sc0 ls19 ws19">provided for constructi<span class="_ _5"></span>on and agricultura<span class="_ _5"></span>l equipment, and<span class="_ _5"></span> stationary powe<span class="_ _5"></span>r systems. </div><div class="t m0 x3 h7 y23 ff3 fs5 fc0 sc0 ls1f ws1e">These SAE Recommended Practi<span class="ls20">ces are int<span class="_ _b"></span>ended as a guide toward <span class="ls21 ws1f">standard practice and<span class="ls22 ws20"> are subject to </span></span></span></div><div class="t m0 x3 h7 y24 ff3 fs5 fc0 sc0 ls23 ws21">change so as to<span class="_ _b"></span> keep pace with ex<span class="_ _b"></span>perience an<span class="_ _b"></span>d technica<span class="_ _b"></span>l advances.<span class="_ _b"></span> </div><div class="t m0 x3 h7 y25 ff3 fs5 fc0 sc0 ls24 ws22">The Contro<span class="_ _b"></span>ller Area Networ<span class="_ _b"></span>k (CAN) protoc<span class="_ _b"></span>ol described in th<span class="_ _b"></span>ese Recommende<span class="_ _b"></span>d Practices is th<span class="_ _b"></span>e </div><div class="t m0 x3 h7 y26 ff3 fs5 fc0 sc0 ls25 ws23">intellect<span class="_ _b"></span>ual property of Robe<span class="_ _b"></span>rt Bosch GmbH (Bosc<span class="_ _b"></span>h). Bosch will grant a lic<span class="_ _b"></span>ense to any company wh<span class="_ _b"></span>ich </div><div class="t m0 x3 h7 y27 ff3 fs5 fc0 sc0 ls26 ws24">intends to ma<span class="_ _5"></span>nufacture or desi<span class="_ _5"></span>gn CAN ECUs<span class="_ _5"></span>. ONLY the <span class="ls15 ws14">man<span class="_ _5"></span>ufacturer of the i<span class="_ _5"></span>ntegr<span class="ls27 ws25">ated circuit containi<span class="_ _5"></span>ng </span></span></div><div class="t m0 x3 h7 y28 ff3 fs5 fc0 sc0 ls19 ws19">the CAN prot<span class="_ _5"></span>ocol or implemen<span class="_ _5"></span>ters of the CAN proto<span class="_ _5"></span>col<span class="ls15 ws26"> in software must deal<span class="_ _5"></span> with the copyright license<span class="_ _5"></span> </span></div><div class="t m0 x3 h7 y29 ff3 fs5 fc0 sc0 ls28 ws27">process<span class="_ _b"></span>. The user of the CAN pr<span class="_ _b"></span>otocol doe<span class="_ _b"></span>s not require a lic<span class="_ _b"></span>ense. Licen<span class="_ _b"></span>sing informat<span class="_ _b"></span>ion and applica<span class="_ _b"></span>tions </div><div class="t m0 x3 h7 y2a ff3 fs5 fc0 sc0 ls29 ws28">can be o<span class="_ _b"></span>btained a<span class="_ _b"></span>t the follow<span class="_ _b"></span>ing addr<span class="_ _b"></span>ess: </div><div class="t m0 x7 h7 y2b ff3 fs5 fc0 sc0 ls25 ws23">Robert Bosc<span class="_ _b"></span>h GmbH </div><div class="t m0 x7 h7 y2c ff3 fs5 fc0 sc0 ls1b ws1a">Attn: Licensin<span class="_ _5"></span>g Department </div><div class="t m0 x7 h7 y2d ff3 fs5 fc0 sc0 ls1b ws1a">PO Box 106050 </div><div class="t m0 x7 h7 y2e ff3 fs5 fc0 sc0 ls13 ws13">D-70049 Stut<span class="_ _5"></span>tgart </div><div class="t m0 x7 h7 y2f ff3 fs5 fc0 sc0 ls19 ws19">Federal Republic o<span class="_ _5"></span>f Germany </div><div class="t m0 x7 h7 y30 ff3 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x3 h7 y31 ff3 fs5 fc0 sc0 ls25 ws23">These Recommende<span class="_ _b"></span>d Practices are bein<span class="_ _b"></span>g generated to cont<span class="_ _b"></span>inue the work accomp<span class="_ _b"></span>lished by the J17<span class="_ _b"></span>08, </div><div class="t m0 x3 h7 y32 ff3 fs5 fc0 sc0 ls1b ws17">J1587, and J1922 Re<span class="_ _5"></span>commended Practices. The J1939<span class="_ _5"></span> series of Recommended Pra<span class="_ _5"></span>ctices will offer a </div><div class="t m0 x3 h7 y33 ff3 fs5 fc0 sc0 ls27 ws25">higher performance altern<span class="_ _5"></span>ative to these ea<span class="_ _5"></span>rlier documents. </div><div class="t m0 x3 h7 y34 ff3 fs5 fc0 sc0 ls1b ws1a">This document refl<span class="_ _5"></span>ects changes and ad<span class="_ _5"></span>ditions approved a<span class="_ _5"></span>nd balloted <span class="_ _5"></span>through Decembe<span class="_ _5"></span>r 2003. </div><div class="t m0 x8 h7 y35 ff7 fs5 fc0 sc0 ls2a ws29">(R) Recommended Practice for a Serial C<span class="ls2b ws1f">ontrol and Communications Vehicle Network </span></div><div class="c x9 y36 w2 h9"><div class="t m0 xa ha y37 ff8 fs7 fc0 sc0 ls0 ws0">Copyright SAE International </div></div><div class="c x9 y37 w2 h9"><div class="t m0 xa ha y37 ff9 fs7 fc0 sc0 ls0 ws0">Provided by IHS under license with SAE</div></div><div class="c xb y38 w3 h9"><div class="t m0 xa ha y37 ffa fs7 fc0 sc0 ls0 ws0">Not for Resale</div></div><div class="c x9 y38 w2 h9"><div class="t m0 xa ha y37 ffb fs7 fc0 sc0 ls0 ws0">No reproduction or networking permitted without license from IHS</div></div><div class="c xc y39 w4 hb"><div class="t m0 xd hc y3a ffc fs8 fc0 sc0 ls0 ws0">--`,,,``,-`-`,,`,,`,`,,`---</div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div><div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/bg2.jpg"><div class="t m0 xe h7 y3b ffd fs5 fc0 sc0 ls2c ws2a">SAE J1939 Revised JAN2005 </div><div class="t m0 xf hd y3c ffe fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf hd y3d ffe fs0 fc0 sc0 ls2d ws0">1. <span class="_ _c"> </span>Scope<span class="_ _d"> </span>......................................................................................................................<span class="_ _5"></span><span class="ls2e">.......<span class="_ _e"> </span>3 </span></div><div class="t m0 xf hd y3e ffe fs0 fc0 sc0 ls2e ws2b">1.1 <span class="_ _f"> </span>Degree of Openness<span class="_ _d"> </span>......................................................................................................<span class="_ _e"> </span>3 </div><div class="t m0 xf hd y3f ffe fs0 fc0 sc0 ls2d ws0">1.2 <span class="_ _f"> </span>Proof of Compliance.......................................................................................................<span class="_ _e"> </span>3<span class="ls0"> </span></div><div class="t m0 xf hd y40 ffe fs0 fc0 sc0 ls2d ws2c">1.3 Rationale<span class="_ _d"> </span>..................................................................................................................<span class="ls2e ws0">......<span class="_ _d"> </span>3 </span></div><div class="t m0 xf hd y41 ffe fs0 fc0 sc0 ls2d ws2d">2. References<span class="_ _9"></span>..................................................................................................................<span class="_ _5"></span><span class="ls2e ws0">...<span class="_ _e"> </span>3 </span></div><div class="t m0 xf hd y42 ffe fs0 fc0 sc0 ls2d ws2c">2.1 Publications<span class="_ _9"></span>...............................................................................................................<span class="_ _5"></span><span class="ls2e ws0">.....<span class="_ _e"> </span>3 </span></div><div class="t m0 xf hd y43 ffe fs0 fc0 sc0 ls2d ws0">2.2 <span class="_ _f"> </span>Definitions and Abbreviations.........................................................................................<span class="_ _e"> </span>4 </div><div class="t m0 xf hd y44 ffe fs0 fc0 sc0 ls2d ws2e">2.2.1 Definitions<span class="_ _10"> </span>..............................................................................................................<span class="ls2e ws0">........<span class="_ _d"> </span>4 </span></div><div class="t m0 xf hd y45 ffe fs0 fc0 sc0 ls2d ws2e">2.2.2 Abbreviations<span class="_ _10"> </span>............................................................................................................<span class="ls2e ws0">.....<span class="_ _d"> </span>7 </span></div><div class="t m0 xf hd y46 ffe fs0 fc0 sc0 ls2d ws0">2.3 <span class="_ _f"> </span>References to the OSI Model:<span class="_ _9"></span>........................................................................................<span class="_ _e"> </span>7 </div><div class="t m0 xf hd y47 ffe fs0 fc0 sc0 ls2d ws0">2.4 <span class="_ _f"> </span>Documentation Structure and Guide<span class="_ _9"></span>..............................................................................<span class="_ _e"> </span>9 </div><div class="t m0 xf hd y48 ffe fs0 fc0 sc0 ls2e ws2f">3. Technical <span class="_ _11"></span>Requirements<span class="_ _10"> </span>..............................................................................................<span class="_ _e"> </span>10 </div><div class="t m0 xf hd y49 ffe fs0 fc0 sc0 ls2d ws2c">3.1 J1939 <span class="_ _12"></span>Tutorial<span class="_ _10"> </span>.............................................................................................................<span class="ls2f ws0">.<span class="_ _d"> </span>10 </span></div><div class="t m0 xf hd y4a ffe fs0 fc0 sc0 ls2d ws2e">3.1.1 Introduction<span class="_ _10"> </span>.............................................................................................................<span class="ls2e ws0">.....<span class="_ _d"> </span>10 </span></div><div class="t m0 xf hd y4b ffe fs0 fc0 sc0 ls2e ws2b">3.1.2 <span class="_ _13"> </span>Message Format and Usage (J1939/21 for 29 Bit Identifier)<span class="_ _10"> </span>.......................................<span class="_ _e"> </span>10 </div><div class="t m0 xf hd y4c ffe fs0 fc0 sc0 ls2e ws2b">3.1.3 <span class="_ _13"> </span>Addresses and NAME (J1939/81 and Appendix B)<span class="_ _e"> </span>.....................................................<span class="_ _e"> </span>12 </div><div class="t m0 xf hd y4d ffe fs0 fc0 sc0 ls2d ws2e">3.1.4 Communication <span class="_ _14"></span>Methods<span class="_ _10"> </span>.............................................................................................<span class="_ _e"> </span>13 </div><div class="t m0 xf hd y4e ffe fs0 fc0 sc0 ls30 ws30">3.1.5 <span class="_ _13"> </span>Transmitting Messages (Using J1939/21 and J1939/7X<span class="_ _5"></span>)<span class="_"> </span>............................................<span class="_ _e"> </span>14 </div><div class="t m0 xf hd y4f ffe fs0 fc0 sc0 ls30 ws2b">3.1.6 <span class="_ _13"> </span>Receiving Messages (Using J1939/21 and J1939/7X)<span class="_ _10"> </span>................................................<span class="_ _e"> </span>14 </div><div class="t m0 xf hd y50 ffe fs0 fc0 sc0 ls30 ws2b">3.1.7 <span class="_ _13"> </span>ECU Design (Using J1939/11, J1939/21, and J1939/7X)<span class="_ _d"> </span>............................................<span class="_ _e"> </span>14 </div><div class="t m0 xf hd y51 ffe fs0 fc0 sc0 ls30 ws2b">3.1.8 <span class="_ _13"> </span>Network Topology &#8212; J1939/01 Using Physical Layer J1939/11 </div><div class="t m0 x10 hd y52 ffe fs0 fc0 sc0 ls2d ws0">and Network Layer J1939/31<span class="_ _e"> </span>.......................................................................................<span class="_ _e"> </span>15 </div><div class="t m0 xf hd y53 ffe fs0 fc0 sc0 ls2e ws31">3.2 Preassigned <span class="_ _12"></span>Values<span class="_ _e"> </span>.....................................................................................................<span class="_ _e"> </span>15 </div><div class="t m0 xf hd y54 ffe fs0 fc0 sc0 ls31 ws32">3.2.1 Parameter <span class="_ _14"></span>Group <span class="_ _14"></span>Numbers<span class="_ _9"></span>..........................................................................................<span class="_ _e"> </span>15 </div><div class="t m0 xf hd y55 ffe fs0 fc0 sc0 ls2d ws2e">3.2.2 Data <span class="_ _14"></span>Field <span class="_ _14"></span>Grouping<span class="_ _d"> </span>.....................................................................................................<span class="_ _e"> </span>1<span class="ls2f ws0">6 </span></div><div class="t m0 xf hd y56 ffe fs0 fc0 sc0 ls2e ws2b">3.2.3 <span class="_ _13"> </span>NAME Systems and Functions<span class="_ _10"> </span>....................................................................................<span class="_ _e"> </span>16 </div><div class="t m0 xf hd y57 ffe fs0 fc0 sc0 ls31 ws32">3.2.4 Industry <span class="_ _14"></span>Group<span class="_ _10"> </span>...........................................................................................................<span class="ls30 ws0">..<span class="_ _e"> </span>17 </span></div><div class="t m0 xf hd y58 ffe fs0 fc0 sc0 ls2d ws2e">3.2.5 Manufacturer <span class="_ _14"></span>Code<span class="_ _10"> </span>......................................................................................................<span class="_ _e"> </span>17<span class="ls0 ws0"> </span></div><div class="t m0 xf hd y59 ffe fs0 fc0 sc0 ls2d ws2e">3.2.6 Preferred <span class="_ _14"></span>Address<span class="_ _d"> </span>........................................................................................................<span class="_ _e"> </span><span class="ls2f ws0">18 </span></div><div class="t m0 xf hd y5a ffe fs0 fc0 sc0 ls31 ws33">3.2.7 <span class="_ _13"> </span>Suspect Parameter Number (SPN)<span class="_ _9"></span>..............................................................................<span class="_ _e"> </span>18 </div><div class="t m0 xf hd y5b ffe fs0 fc0 sc0 ls2d ws2c">3.3 Application <span class="_ _12"></span>Examples<span class="_ _9"></span>...................................................................................................<span class="_ _e"> </span>18 </div><div class="t m0 xf hd y5c ffe fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf hd y5d ffe fs0 fc0 sc0 ls2d ws2d">4. Notes<span class="_ _9"></span>.......................................................................................................................<span class="_ _5"></span><span class="ls2e ws0">.....<span class="_ _e"> </span>20 </span></div><div class="t m0 xf hd y5e ffe fs0 fc0 sc0 ls2d ws2c">4.1 Marginal <span class="_ _12"></span>Indicia<span class="_ _d"> </span>...........................................................................................................<span class="ls2f ws0">.<span class="_ _d"> </span>20 </span></div><div class="t m0 xf hd y5f ffe fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf hd y60 ffe fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h4 y61 ffe fs5 fc0 sc0 ls32 ws34">Appendix <span class="_ _15"> </span>A <span class="_ _16"> </span>Parameter Group Assignm<span class="_ _5"></span>ents </div><div class="t m0 xf h4 y62 ffe fs5 fc0 sc0 ls0 ws35"> B <span class="_ _17"></span>Address <span class="_ _18"></span>and <span class="_ _18"></span>Identity <span class="_ _18"></span>Assignments </div><div class="t m0 xf h4 y63 ffe fs5 fc0 sc0 ls33 ws36"> C <span class="_ _19"></span>Fault <span class="_ _18"></span>Reporting <span class="_ _18"></span>Parameters </div><div class="t m0 xf h4 y64 ffe fs5 fc0 sc0 ls1c ws37"> D <span class="_ _19"></span>Assignmen<span class="_ _b"></span>t <span class="_ _18"></span>Reques<span class="_ _b"></span>t <span class="_ _18"></span>Forms<span class="_ _b"></span><span class="fff ls0 ws0"> </span></div><div class="c x9 y36 w2 h9"><div class="t m0 xa ha y37 ff8 fs7 fc0 sc0 ls0 ws0">Copyright SAE International </div></div><div class="c x9 y37 w2 h9"><div class="t m0 xa ha y37 ff9 fs7 fc0 sc0 ls0 ws0">Provided by IHS under license with SAE</div></div><div class="c xb y38 w3 h9"><div class="t m0 xa ha y37 ffa fs7 fc0 sc0 ls0 ws0">Not for Resale</div></div><div class="c x9 y38 w2 h9"><div class="t m0 xa ha y37 ffb fs7 fc0 sc0 ls0 ws0">No reproduction or networking permitted without license from IHS</div></div><div class="c x11 y65 w5 he"><div class="t m1 x12 hc y66 ff10 fs8 fc0 sc0 ls0 ws0">--`,,,``,-`-`,,`,,`,`,,`---</div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div><div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/bg3.jpg"><div class="t m0 xe h7 y3b ff2 fs5 fc0 sc0 ls27 ws25">SAE J1939 Revised J<span class="_ _5"></span>AN2005 </div><div class="t m0 x4 h4 y67 ff4 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h4 y68 ff1 fs5 fc0 sc0 ls0 ws0">3</div><div class="t m0 x14 hd y69 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h8 y6a ff6 fs2 fc0 sc0 ls34 ws38">1. Scope </div><div class="t m0 xf h7 y6b ff3 fs5 fc0 sc0 ls32 ws39">These Recommended Practices a<span class="_ _5"></span>re intended fo<span class="_ _5"></span>r light, medium, and <span class="_ _5"></span>heavy duty ve<span class="_ _5"></span>hicles used on o<span class="_ _5"></span>r off road as </div><div class="t m0 xf h7 y6c ff3 fs5 fc0 sc0 ls35 ws3a">well as appropriate<span class="_ _5"></span> stationary applications which use <span class="ls12 ws12">vehicle<span class="_ _5"></span> derived co<span class="_ _5"></span>mponents (e.g. ge<span class="_ _5"></span>nerator sets). </span></div><div class="t m0 xf h7 y6d ff3 fs5 fc0 sc0 ls36 ws3b">Vehicles of inte<span class="_ _5"></span>rest include, <span class="_ _5"></span>but are not li<span class="_ _5"></span>mited to: on<span class="_ _5"></span><span class="ls37 ws3c"> and off highwa<span class="_ _5"></span>y trucks and their trail<span class="_ _5"></span>ers; construction </span></div><div class="t m0 xf h7 y6e ff3 fs5 fc0 sc0 ls1e ws3d">equipment; and ag<span class="_ _5"></span>ricultural equipment and imple<span class="_ _5"></span>ments. </div><div class="t m0 xf h7 y6f ff3 fs5 fc0 sc0 ls38 ws3e">The purpos<span class="_ _b"></span>e of these Recomme<span class="_ _b"></span>nded Pract<span class="_ _b"></span>ices is to <span class="ls0 ws34">provide an open interconne<span class="_ _5"></span>ct system for electronic </span></div><div class="t m0 xf h7 y70 ff3 fs5 fc0 sc0 ls1c ws1b">systems. It is the int<span class="_ _b"></span>ention of thes<span class="_ _b"></span>e Recommende<span class="_ _b"></span>d Pr<span class="ls2a ws3f">actices to allow Ele<span class="_ _5"></span>ctronic Control Units to communi<span class="_ _5"></span>cate </span></div><div class="t m0 xf h7 y71 ff3 fs5 fc0 sc0 ls19 ws17">with each other by providin<span class="_ _5"></span>g a standard architecture. </div><div class="t m0 xf h8 y72 ff2 fs2 fc0 sc0 ls16 ws40">1.1 <span class="_ _1a"> </span>Degree of Openness </div><div class="t m0 xf h7 y73 ff3 fs5 fc0 sc0 ls27 ws25">A J1939 network is<span class="_ _5"></span> open to the <span class="_ _5"></span><span class="ls33 ws41">degree that any two ECUs whic<span class="_ _5"></span><span class="ls1e ws1d">h conform to the same<span class="_ _5"></span> J1939/0<span class="ff11 ls0 ws0">X</span><span class="ls15 ws14"> documen<span class="_ _5"></span>t can </span></span></span></div><div class="t m0 xf h7 y74 ff3 fs5 fc0 sc0 ls39 ws42">be connected via th<span class="_ _5"></span>e network and communi<span class="_ _5"></span>cate with each <span class="_ _5"></span><span class="ls24 ws28">other with<span class="_ _b"></span>out functi<span class="_ _b"></span>onal inte<span class="_ _b"></span>rference.<span class="_ _b"></span> The J1939/<span class="_ _b"></span>0X </span></div><div class="t m0 xf h7 y75 ff3 fs5 fc0 sc0 ls29 ws43">dcoumen<span class="_ _b"></span>ts describe a spec<span class="_ _b"></span>ific type of ap<span class="_ _b"></span>plication,<span class="_ _b"></span> typically repr<span class="_ _b"></span>esenting<span class="_ _b"></span> a specific in<span class="_ _b"></span>dustry to whic<span class="_ _b"></span>h it pertains </div><div class="t m0 xf h7 y76 ff3 fs5 fc0 sc0 ls35 ws44">such as ag<span class="_ _5"></span>ricultural or heavy duty tru<span class="_ _5"></span>cks. ECUs which con<span class="_ _5"></span>form to a different J1<span class="_ _5"></span>939/0<span class="ff11 ls0 ws0">X</span><span class="ls3a ws45"> document <span class="_ _5"></span>may not be </span></div><div class="t m0 xf h7 y77 ff3 fs5 fc0 sc0 ls19 ws17">capable of communica<span class="_ _5"></span>ting directly with one another and in so<span class="_ _5"></span>me cases may cause degradati<span class="_ _5"></span>on or complete </div><div class="t m0 xf h7 y78 ff3 fs5 fc0 sc0 ls0 ws46">disruption of the entire network. </div><div class="t m0 xf h8 y79 ff2 fs2 fc0 sc0 ls0 ws47">1.2 <span class="_ _1a"> </span>Proof of Compliance </div><div class="t m0 xf h7 y7a ff3 fs5 fc0 sc0 ls3b ws48">There is no pro<span class="_ _5"></span>cedure presentl<span class="_ _5"></span>y in place <span class="_ _5"></span>to test, validate,<span class="_ _5"></span><span class="ls15 ws14"> or provide fo<span class="_ _5"></span>rmal approval for ECUs <span class="_ _5"></span>utilizing the <span class="_ _5"></span>J1939 </span></div><div class="t m0 xf h7 y7b ff3 fs5 fc0 sc0 ls0 ws49">network. Each developer i<span class="_ _5"></span>s expected to design <span class="_ _5"></span>their produc<span class="ls3c ws4a">ts<span class="_ _5"></span> to the spirit of, as<span class="_ _5"></span> well as the specific<span class="_ _5"></span> content of, </span></div><div class="t m0 xf h7 y7c ff3 fs5 fc0 sc0 ls3b ws4b">this recommended<span class="_ _5"></span> practice. Provisions are<span class="_ _5"></span> made in J1939/11 and J1939<span class="_ _5"></span>/12 for self certifi<span class="_ _5"></span>cation to these </div><div class="t m0 xf h7 y7d ff3 fs5 fc0 sc0 ls3d ws4c">documents. In the future, it<span class="ls33 ws41"> is hoped that proced<span class="ls3e ws4d">ures will <span class="_ _5"></span>be defined and implement<span class="ls3f ws4e">ed to test new products to </span></span></span></div><div class="t m0 xf h7 y7e ff3 fs5 fc0 sc0 ls35 ws4f">ensure full compliance with<span class="_ _5"></span> all appropriate J1939 document<span class="ls40 ws50">s<span class="_ _5"></span>. Until t<span class="_ _5"></span>hat time,<span class="_ _5"></span> comp<span class="ls3f ws4e">liance will be honorarily </span></span></div><div class="t m0 xf h7 y7f ff3 fs5 fc0 sc0 ls27 ws25">determined. Should q<span class="_ _5"></span>uestions arise reg<span class="_ _5"></span>arding the use o<span class="_ _5"></span>r interpretation of any p<span class="_ _5"></span>art of these recommen<span class="_ _5"></span>ded </div><div class="t m0 xf h7 y80 ff3 fs5 fc0 sc0 ls22 ws51">practices they should <span class="_ _b"></span>be directed to the SAE Contro<span class="ls41 ws52">l and Communic<span class="_ _b"></span>ations Subcommittee for resolut<span class="_ _b"></span>ion. </span></div><div class="t m0 xf h8 y81 ff2 fs2 fc0 sc0 ls16 ws53">1.3 Rationale </div><div class="t m0 xf h7 y82 ff3 fs5 fc0 sc0 ls1b ws1a">This document reflects <span class="_ _5"></span>changes and ad<span class="_ _5"></span>ditions approved a<span class="_ _5"></span>nd balloted th<span class="_ _5"></span>rough December 200<span class="_ _5"></span>3. </div><div class="t m0 xf h8 y83 ff6 fs2 fc0 sc0 ls42 ws54">2. References </div><div class="t m0 xf h8 y84 ff2 fs2 fc0 sc0 ls16 ws53">2.1 Publications </div><div class="t m0 x15 h7 y85 ff3 fs5 fc0 sc0 ls29 ws43">ISO 7498 <span class="_ _1b"> </span>Informat<span class="_ _b"></span>ion Proces<span class="_ _b"></span>sing Systems - Op<span class="_ _b"></span>en Systems Interc<span class="_ _b"></span>onnection<span class="_ _b"></span> (OSI) - Basic </div><div class="t m0 x16 h7 y86 ff3 fs5 fc0 sc0 ls43 ws24">Reference<span class="_ _5"></span> Model. </div><div class="t m0 x15 h7 y87 ff3 fs5 fc0 sc0 ls3b ws4b">ISO 11898 <span class="_ _1c"> </span>Road Vehicles &#8212; In<span class="_ _5"></span>terchange of Digital<span class="_ _5"></span> Information &#8212; Cont<span class="_ _5"></span>roller Area Network </div><div class="t m0 x16 h7 y88 ff3 fs5 fc0 sc0 ls27 ws55">(CAN) for High Speed Communi<span class="_ _5"></span>cation, December 1992 </div><div class="t m0 x15 h7 y89 ff3 fs5 fc0 sc0 ls32 ws39">ISO 11992 <span class="_ _1c"> </span>Road Vehi<span class="_ _5"></span>cles - Electrical Connection<span class="_ _5"></span>s Between Towing and<span class="_ _5"></span> Towed Vehicles - </div><div class="t m0 x16 h7 y8a ff3 fs5 fc0 sc0 ls40 ws50">Interchan<span class="_ _5"></span>ge of Digital<span class="_ _5"></span> Infor<span class="_ _5"></span>mation (Pa<span class="_ _5"></span>rts 1, 2, 3<span class="_ _5"></span>) </div><div class="t m0 x15 h7 y8b ff3 fs5 fc0 sc0 ls44 ws56">SAE J1213 <span class="_ _1d"> </span>Glossary of Automotive Electronic Terms </div><div class="t m0 x15 h7 y8c ff3 fs5 fc0 sc0 ls45 ws57">SAE J1708 <span class="_ _1d"> </span>Recommended Practice for Se<span class="ws58">rial Data Communication Between </span></div><div class="t m0 x16 h7 y8d ff3 fs5 fc0 sc0 ls38 ws3e">Microcom<span class="_ _b"></span>puter Systems in He<span class="_ _b"></span>avy Duty Vehic<span class="_ _b"></span>le Applicatio<span class="_ _b"></span>ns. </div><div class="t m0 x15 h7 y8e ff3 fs5 fc0 sc0 ls45 ws57">SAE J1587 <span class="_ _1d"> </span>Recommended Practice for El<span class="ls46 ws51">ectronic Data Interchange Between </span></div><div class="t m0 x16 h7 y8f ff3 fs5 fc0 sc0 ls24 ws22">Microcom<span class="_ _b"></span>puter Systems<span class="_ _b"></span> in Heavy Duty Vehic<span class="_ _b"></span>le Applicat<span class="_ _b"></span>ions </div><div class="t m0 x15 h7 y90 ff3 fs5 fc0 sc0 ls46 ws51">SAE J1922 <span class="_ _1d"> </span>Powertrain Control Interface f<span class="_ _b"></span>or Elec<span class="ls1f ws1e">tronic Controls Used in Medium and Heavy </span></div><div class="t m0 x16 h7 y91 ff3 fs5 fc0 sc0 ls0 ws46">Duty Diesel On-Highway Vehicl<span class="_ _5"></span>e Applications </div><div class="t m0 x15 h7 y92 ff3 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h7 y93 ff3 fs5 fc0 sc0 ls3a ws45">SAE publications are available from<span class="ls2a ws59"> SAE, 400 Commonwealth<span class="ls0 ws49"> Driv<span class="_ _5"></span>e, Warrendale,<span class="ls22 ws20"> PA 15096-0001. ISO </span></span></span></div><div class="t m0 xf h7 y94 ff3 fs5 fc0 sc0 ls32 ws39">publications are a<span class="_ _5"></span>vailable from ANSI, 11 We<span class="_ _5"></span>st 42nd Street, <span class="_ _5"></span>New York, NY 10036<span class="_ _5"></span>. </div><div class="c x9 y36 w2 h9"><div class="t m0 xa ha y37 ff8 fs7 fc0 sc0 ls0 ws0">Copyright SAE International </div></div><div class="c x9 y37 w2 h9"><div class="t m0 xa ha y37 ff9 fs7 fc0 sc0 ls0 ws0">Provided by IHS under license with SAE</div></div><div class="c xb y38 w3 h9"><div class="t m0 xa ha y37 ffa fs7 fc0 sc0 ls0 ws0">Not for Resale</div></div><div class="c x9 y38 w2 h9"><div class="t m0 xa ha y37 ffb fs7 fc0 sc0 ls0 ws0">No reproduction or networking permitted without license from IHS</div></div><div class="c x17 y95 w5 he"><div class="t m1 x12 hc y66 ff10 fs8 fc0 sc0 ls0 ws0">--`,,,``,-`-`,,`,,`,`,,`---</div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div><div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/bg4.jpg"><div class="t m0 xe h7 y3b ff2 fs5 fc0 sc0 ls27 ws25">SAE J1939 Revised J<span class="_ _5"></span>AN2005 </div><div class="t m0 x4 h4 y67 ff4 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h4 y68 ff1 fs5 fc0 sc0 ls0 ws0">4</div><div class="t m0 x14 hd y69 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x15 h7 y96 ff3 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h8 y97 ff2 fs2 fc0 sc0 ls47 ws5a">2.2 <span class="_ _1a"> </span>Definitions and Abbreviations </div><div class="t m0 xf h7 y98 ff3 fs5 fc0 sc0 ls2b ws5b">Definitions provid<span class="ls2a ws3f">ed herein will<span class="_ _5"></span> supersede th<span class="ls3a ws45">ose contained in SAE J1213. SAE<span class="_ _5"></span><span class="ls48 ws5c"> J1213 will otherwise apply </span></span></span></div><div class="t m0 xf h7 y99 ff3 fs5 fc0 sc0 ls27 ws25">throughout. </div><div class="t m0 xf h8 y9a ff3 fs2 fc0 sc0 ls16 ws5d">2.2.1 Definitions <span class="_ _1e"></span> </div><div class="t m0 xf h7 y9b ff3 fs5 fc0 sc0 ls1c ws50">Acknowledgme<span class="_ _b"></span>nt (ACK) &#8212; C<span class="_ _b"></span>onfirms th<span class="_ _b"></span>at the re<span class="_ _b"></span>queste<span class="ls12 ws12">d action has been<span class="_ _5"></span> understood an<span class="_ _5"></span>d performed. </span></div><div class="t m0 xf h7 y9c ff3 fs5 fc0 sc0 ls35 ws3a">Address &#8212; The 8 bit field (or field<span class="_ _5"></span>s) used to define the <span class="ls15 ws14">source (a<span class="_ _5"></span>nd destination when<span class="_ _5"></span> applicable) of a <span class="_ _5"></span>message </span></div><div class="t m0 xf h7 y9d ff3 fs5 fc0 sc0 ls49 ws42">(e.g. engine<span class="_ _5"></span>, transmission<span class="_ _5"></span>, etc.). </div><div class="t m0 xf h7 y9e ff3 fs5 fc0 sc0 ls0 ws34">Arbitration &#8212; The process by which one or more ECUs reso<span class="ls27 ws55">l<span class="_ _5"></span>ve conflicts in obtaining access to<span class="_ _5"></span> a shared network </span></div><div class="t m0 xf h7 y9f ff3 fs5 fc0 sc0 ls4a ws0">bus. </div><div class="t m0 xf h7 ya0 ff3 fs5 fc0 sc0 ls24 ws22">Bit Stuff<span class="_ _b"></span>ing &#8212; A procedure us<span class="_ _b"></span>ed to assure the t<span class="_ _b"></span>ransmitted an<span class="_ _b"></span>d received messag<span class="_ _b"></span>es maintain a m<span class="_ _b"></span>inimum number </div><div class="t m0 xf h7 ya1 ff3 fs5 fc0 sc0 ls43 ws5e">of dominant <span class="_ _5"></span>to recessi<span class="_ _5"></span>ve edges,<span class="_ _5"></span> and vise <span class="_ _5"></span>versa, to<span class="_ _5"></span> mainta<span class="ls15 ws14">in the<span class="_ _5"></span> proper resynchronizati<span class="_ _5"></span>on <span class="ls4b ws5f">within the string<span class="_ _b"></span> of bits </span></span></div><div class="t m0 xf h7 ya2 ff3 fs5 fc0 sc0 ls4c ws60">in a CAN Data<span class="_ _b"></span> Frame. See CAN s<span class="_ _b"></span>pecific<span class="_ _b"></span>ation for a mo<span class="_ _b"></span>re detailed <span class="_ _b"></span>discussion.<span class="_ _b"></span> </div><div class="t m0 xf h7 ya3 ff3 fs5 fc0 sc0 ls38 ws3e">Bridge &#8212; A dev<span class="_ _b"></span>ice which stores an<span class="_ _b"></span>d forwards mess<span class="_ _b"></span>ages betwee<span class="_ _b"></span>n two J1939 network se<span class="_ _b"></span>gments. This perm<span class="_ _b"></span>its </div><div class="t m0 xf h7 ya4 ff3 fs5 fc0 sc0 ls37 ws3c">changes in the <span class="_ _5"></span>media, the electrical interface, a<span class="_ _5"></span>nd da<span class="ls32 ws46">ta rate betwee<span class="_ _5"></span>n segments. The protocol and address </span></div><div class="t m0 xf h7 ya5 ff3 fs5 fc0 sc0 ls38 ws61">space rem<span class="_ _b"></span>ain the <span class="_ _b"></span>same on bot<span class="_ _b"></span>h sides of t<span class="_ _b"></span>he bridge.<span class="_ _b"></span> Note that <span class="_ _b"></span>a bridge may<span class="_ _b"></span> selective<span class="_ _b"></span>ly filter mes<span class="_ _b"></span>sages go<span class="_ _b"></span>ing </div><div class="t m0 xf h7 ya6 ff3 fs5 fc0 sc0 ls19 ws17">across it so that the bus load is minimi<span class="_ _5"></span>zed on each segment. </div><div class="t m0 xf h7 ya7 ff3 fs5 fc0 sc0 ls23 ws21">Bus &#8212; See Segm<span class="_ _b"></span>ent. </div><div class="t m0 xf h7 ya8 ff3 fs5 fc0 sc0 ls28 ws27">CAN Data Fram<span class="_ _b"></span>e &#8212; The order<span class="_ _b"></span>ed bit fields n<span class="_ _b"></span>ecessary to cre<span class="_ _b"></span>ate a CAN frame used<span class="_ _b"></span> to convey dat<span class="_ _b"></span>a, beginning<span class="_ _b"></span> </div><div class="t m0 xf h7 ya9 ff3 fs5 fc0 sc0 ls19 ws19">with an SOF and<span class="_ _5"></span> ending with an<span class="_ _5"></span> EOF. </div><div class="t m0 xf h7 yaa ff3 fs5 fc0 sc0 ls37 ws59">Cyclic Redundancy Chec<span class="_ _5"></span>k (CRC) &#8212; An error control mechanism. A 15 bit cyclic redundancy check is </div><div class="t m0 xf h7 yab ff3 fs5 fc0 sc0 ls38 ws50">performed<span class="_ _b"></span> for detect<span class="_ _b"></span>ing transm<span class="_ _b"></span>ission erro<span class="_ _b"></span>rs. Give<span class="_ _b"></span>n a <span class="ff11 ls0 ws0">k</span><span class="ls1b ws17">-bit frame or message, th<span class="_ _5"></span>e transmitter generates an <span class="ff11 ls0 ws0">n<span class="ff3 ls39">-bi<span class="_ _5"></span>t </span></span></span></div><div class="t m0 xf h7 yac ff3 fs5 fc0 sc0 ls35 ws44">sequence, known<span class="_ _5"></span> as a frame ch<span class="_ _5"></span>eck sequence so th<span class="_ _5"></span>at the resulting fra<span class="_ _5"></span>me, consisting of <span class="_ _5"></span><span class="ff11 ls0 ws0">k<span class="ff3 ls4d ws62"> + </span>n<span class="ff3 ls3b ws48"> bits is <span class="_ _5"></span>exactly </span></span></div><div class="t m0 xf h7 yad ff3 fs5 fc0 sc0 ls1e ws63">divisible by so<span class="_ _5"></span>me predefined nu<span class="_ _5"></span>mber. The receiver<span class="_ _5"></span> then <span class="ls29 ws43">divides the incom<span class="_ _b"></span>ing frame by the sam<span class="_ _b"></span>e number and,<span class="_ _b"></span> if </span></div><div class="t m0 xf h7 yae ff3 fs5 fc0 sc0 ls1c ws64">there is<span class="_ _b"></span> no remain<span class="_ _b"></span>der, assumes<span class="_ _b"></span> that ther<span class="_ _b"></span>e was no e<span class="_ _b"></span>rror. </div><div class="t m0 xf h7 yaf ff3 fs5 fc0 sc0 ls32 ws46">Data Field &#8212; A 0 to 64-bit field normally placed in a CA<span class="ls12 ws12">N <span class="_ _5"></span>data frame whi<span class="_ _5"></span>ch contains the data<span class="_ _5"></span> as defined i<span class="_ _5"></span>n the </span></div><div class="t m0 xf h7 yb0 ff3 fs5 fc0 sc0 ls48 ws65">Application Layer (docu<span class="_ _5"></span>ment J1939/7X). </div><div class="t m0 xf h7 yb1 ff3 fs5 fc0 sc0 ls28 ws27">Data Page &#8212; One<span class="_ _b"></span> bit in the Ident<span class="_ _b"></span>ifier portio<span class="_ _b"></span>n of the CAN Arb<span class="_ _b"></span>itration F<span class="_ _b"></span>ield is used to selec<span class="_ _b"></span>t one of two pag<span class="_ _b"></span>es of </div><div class="t m0 xf h7 yb2 ff3 fs5 fc0 sc0 ls2a ws3f">Parameter Group <span class="ff1 ls17 ws0">Numbers</span><span class="ls3c ws66">. <span class="_ _5"></span> This provides<span class="_ _5"></span> for the <span class="_ _5"></span>future grow<span class="_ _5"></span>th of Para<span class="_ _5"></span>meter Group<span class="_ _5"></span> definitio<span class="_ _5"></span>ns. It also<span class="_ _5"></span> is one </span></div><div class="t m0 xf h7 yb3 ff3 fs5 fc0 sc0 ls1e ws63">of the fields u<span class="_ _5"></span>sed to determine <span class="_ _5"></span>the Parameter G<span class="_ _5"></span>roup Number whic<span class="_ _5"></span>h labels the <span class="_ _5"></span>data field o<span class="_ _5"></span>f the CAN Data<span class="_ _5"></span> Frame. </div><div class="t m0 xf h7 yb4 ff3 fs5 fc0 sc0 ls29 ws43">Destinat<span class="_ _b"></span>ion Address (D<span class="_ _b"></span>A) &#8212; This is a Protoc<span class="_ _b"></span>ol Data Unit <span class="ls15 ws14">(PDU) specific field in<span class="_ _5"></span> the 29 bit CAN i<span class="_ _5"></span>dentifier used <span class="_ _5"></span>to </span></div><div class="t m0 xf h7 yb5 ff3 fs5 fc0 sc0 ls27 ws4f">indicate the address of the ECU intended to<span class="_ _5"></span> receive the J1939 message. </div><div class="t m0 xf h7 yb6 ff3 fs5 fc0 sc0 ls15 ws14">Device &#8212; A p<span class="_ _5"></span>hysical component wi<span class="_ _5"></span>th one or <span class="_ _5"></span>more ECUs and netwo<span class="_ _5"></span>rk connection<span class="_ _5"></span>s. </div><div class="t m0 xf h7 yb7 ff3 fs5 fc0 sc0 ls27 ws25">Electronic Control Unit (E<span class="_ _5"></span>CU) &#8212; A compute<span class="_ _5"></span>r based <span class="ws4f">el<span class="_ _5"></span>ectronic assembly from <span class="ls19 ws3a">which<span class="_ _5"></span> J1939 messages may be </span></span></div><div class="t m0 xf h7 yb8 ff3 fs5 fc0 sc0 ls4e ws67">sent or rec<span class="_ _b"></span>eived. </div><div class="t m0 xf h7 yb9 ff3 fs5 fc0 sc0 ls35 ws44">End of Frame (EOF) &#8212;<span class="_ _5"></span> A 7 bit fiel<span class="_ _5"></span>d marking the endi<span class="_ _5"></span>ng of a CA<span class="_ _5"></span>N data frame. </div><div class="t m0 xf h7 yba ff3 fs5 fc0 sc0 ls4f ws68">Extended Frame<span class="_ _b"></span> &#8212; A CAN data frame us<span class="_ _b"></span>ing a 29 bit ident<span class="_ _b"></span>ifier as def<span class="_ _b"></span>ined in the CAN 2.0 s<span class="_ _b"></span>pecificat<span class="_ _b"></span>ion. </div><div class="t m0 xf h7 ybb ff3 fs5 fc0 sc0 ls25 ws23">Frame &#8212; A series of<span class="_ _b"></span> data bits making up a comp<span class="_ _b"></span>lete message. The fram<span class="_ _b"></span>e is subdivide<span class="_ _b"></span>d into a number of fiel<span class="_ _b"></span>ds, </div><div class="t m0 xf h7 ybc ff3 fs5 fc0 sc0 ls36 ws3b">each field co<span class="_ _5"></span>ntaining a pre<span class="_ _5"></span>defined ty<span class="ls1b ws1a">pe<span class="_ _5"></span> of data. See<span class="_ _5"></span> CAN Data Fra<span class="_ _5"></span>me </span></div><div class="t m0 xf h7 ybd ff3 fs5 fc0 sc0 ls2c ws69">Function &#8212; A capa<span class="_ _5"></span>bility of a vehicle <span class="_ _5"></span>system having one<span class="ls1e ws63"> o<span class="_ _5"></span>r more ECUs tha<span class="_ _5"></span>t are connected <span class="_ _5"></span>to a J1939 bu<span class="_ _5"></span>s </span></div><div class="t m0 xf h7 ybe ff3 fs5 fc0 sc0 ls15 ws14">segment of a <span class="_ _5"></span>Vehicle System. The<span class="_ _5"></span> function value<span class="_ _5"></span> is used in the <span class="_ _5"></span>8 bit Function <span class="_ _5"></span>field in the 6<span class="_ _5"></span>4 bit NAME enti<span class="_ _5"></span>ty </div><div class="t m0 xf h7 ybf ff3 fs5 fc0 sc0 ls50 ws6a">(See J19<span class="_ _b"></span>39/81, Sectio<span class="_ _b"></span>n 4.1) </div><div class="c x9 y36 w2 h9"><div class="t m0 xa ha y37 ff8 fs7 fc0 sc0 ls0 ws0">Copyright SAE International </div></div><div class="c x9 y37 w2 h9"><div class="t m0 xa ha y37 ff9 fs7 fc0 sc0 ls0 ws0">Provided by IHS under license with SAE</div></div><div class="c xb y38 w3 h9"><div class="t m0 xa ha y37 ffa fs7 fc0 sc0 ls0 ws0">Not for Resale</div></div><div class="c x9 y38 w2 h9"><div class="t m0 xa ha y37 ffb fs7 fc0 sc0 ls0 ws0">No reproduction or networking permitted without license from IHS</div></div><div class="c x18 yc0 w5 he"><div class="t m2 x19 hc yc1 ff12 fs8 fc0 sc0 ls0 ws0">--`,,,``,-`-`,,`,,`,`,,`---</div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div><div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89547681/bg5.jpg"><div class="t m0 xe h7 y3b ff2 fs5 fc0 sc0 ls27 ws25">SAE J1939 Revised J<span class="_ _5"></span>AN2005 </div><div class="t m0 x4 h4 y67 ff4 fs5 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h4 y68 ff1 fs5 fc0 sc0 ls0 ws0">5</div><div class="t m0 x14 hd y69 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h7 y96 ff3 fs5 fc0 sc0 ls35 ws44">Gateway &#8212; This device<span class="_ _5"></span> permits data to<span class="_ _5"></span> be transferre<span class="_ _5"></span>d between two networks <span class="_ _5"></span>with different <span class="_ _5"></span>protocols or </div><div class="t m0 xf h7 yc2 ff3 fs5 fc0 sc0 ls25 ws64">message se<span class="_ _b"></span>ts. The gat<span class="_ _b"></span>eway provides <span class="_ _b"></span>a means t<span class="_ _b"></span>o repackage p<span class="_ _b"></span>arameters <span class="_ _b"></span>into new messa<span class="_ _b"></span>ge groups w<span class="_ _b"></span>hen </div><div class="t m0 xf h7 yc3 ff3 fs5 fc0 sc0 ls25 ws23">transferr<span class="_ _b"></span>ing messages from on<span class="_ _b"></span>e segment to anot<span class="_ _b"></span>her. </div><div class="t m0 xf h7 yc4 ff3 fs5 fc0 sc0 ls29 ws5e">Group Ext<span class="_ _b"></span>ension (G<span class="_ _b"></span>E) &#8212; This is a <span class="_ _b"></span>PDU spec<span class="_ _b"></span>ific fiel<span class="_ _b"></span>d of<span class="ls4a ws6b"> a J1939 CAN Data Frame that<span class="_ _5"></span><span class="ls37 ws3c"> is used as part of the </span></span></div><div class="t m0 xf h7 yc5 ff3 fs5 fc0 sc0 ls1b ws26">information nece<span class="_ _5"></span>ssary to determine the Para<span class="_ _5"></span>meter Group Number. </div><div class="t m0 xf h7 yc6 ff3 fs5 fc0 sc0 ls3b ws48">Identifier &#8212;<span class="_ _5"></span> The identi<span class="_ _5"></span>fier portion of<span class="_ _5"></span> the CAN arbitrati<span class="_ _5"></span>on field. </div><div class="t m0 xf h7 yc7 ff3 fs5 fc0 sc0 ls51 ws61">Idle &#8212; A<span class="_ _5"></span> state on th<span class="_ _5"></span>e CAN bu<span class="_ _5"></span>s where n<span class="_ _5"></span>o node is <span class="_ _5"></span>transmitti<span class="_ _5"></span>ng or att<span class="_ _5"></span>empting to<span class="_ _5"></span> transmit<span class="_ _5"></span> data. </div><div class="t m0 xf h7 yc8 ff3 fs5 fc0 sc0 ls15 ws14">Implement &#8212; A <span class="_ _5"></span>machine consisting o<span class="_ _5"></span>f one or more<span class="_ _5"></span> ECUs which may be<span class="_ _5"></span> attached to<span class="_ _5"></span> or detached <span class="_ _5"></span>from the </div><div class="t m0 xf h7 yc9 ff3 fs5 fc0 sc0 ls28 ws27">vehicl<span class="_ _b"></span>e as a unit. </div><div class="t m0 xf h7 yca ff3 fs5 fc0 sc0 ls19 ws17">Media &#8212; The physical entity whi<span class="_ _5"></span>ch conveys the electric<span class="ls27 ws4f">al transmi<span class="_ _5"></span>ssion (or equivalent means of commu<span class="_ _5"></span>nication) </span></div><div class="t m0 xf h7 ycb ff3 fs5 fc0 sc0 ls27 ws44">between ECUs on th<span class="_ _5"></span>e network. For J1<span class="_ _5"></span>939/11, the media<span class="_ _5"></span> <span class="ls33 ws41">consists of shielded twisted pai<span class="_ _5"></span>r copper wires. </span></div><div class="t m0 xf h7 ycc ff3 fs5 fc0 sc0 ls2c ws2a">Message &#8212; A &#8220;message&#8221; is equivalen<span class="_ _5"></span>t to one or more &#8220;CAN Data Frames&#8221; that have th<span class="_ _5"></span>e same Parameter </div><div class="t m0 xf h7 ycd ff3 fs5 fc0 sc0 ls19 ws19">Group Number. <span class="_ _5"></span> For instance <span class="_ _5"></span>the information<span class="_ _5"></span> related to a<span class="_ _5"></span> single Parameter Gr<span class="_ _5"></span>oup Number to be tran<span class="_ _5"></span>sferred on </div><div class="t m0 xf h7 yce ff3 fs5 fc0 sc0 ls40 ws6c">the bus may t<span class="_ _5"></span>ake several<span class="_ _5"></span> CAN data frames<span class="_ _5"></span>. </div><div class="t m0 xf h7 ycf ff3 fs5 fc0 sc0 ls4b ws5f">Multipacke<span class="_ _b"></span>t Messages &#8212; A <span class="_ _b"></span>type of J1<span class="_ _b"></span>939 message w<span class="_ _b"></span>hic<span class="ls2c ws69">h is used when more<span class="_ _5"></span> than one CA<span class="_ _5"></span>N data frame is </span></div><div class="t m0 xf h7 yd0 ff3 fs5 fc0 sc0 ls27 ws69">required to <span class="_ _5"></span>transmit all data specific <span class="_ _5"></span>to a given Para<span class="_ _5"></span>meter Group Number. <span class="_ _5"></span> Each CAN data<span class="_ _5"></span> frame will ha<span class="_ _5"></span>ve the </div><div class="t m0 xf h7 yd1 ff3 fs5 fc0 sc0 ls1b ws1a">same identi<span class="_ _5"></span>fier but will con<span class="_ _5"></span>tain different data i<span class="_ _5"></span>n each packet. </div><div class="t m0 xf h7 yd2 ff3 fs5 fc0 sc0 ls1e ws63">NAME - An <span class="_ _5"></span>8 byte value wh<span class="_ _5"></span>ich uniquely iden<span class="_ _5"></span>tifies the <span class="ls36 ws3b">pri<span class="_ _5"></span>mary functi<span class="_ _5"></span>on of an ECU and i<span class="_ _5"></span>ts instance o<span class="_ _5"></span>n the </span></div><div class="t m0 xf h7 yd3 ff3 fs5 fc0 sc0 ls3b ws48">network. A devi<span class="_ _5"></span>ce's NAME mu<span class="_ _5"></span>st be unique, <span class="_ _5"></span>no two <span class="ws4b">devi<span class="_ _5"></span>ces may share the same NA<span class="_ _5"></span>ME value on a given </span></div><div class="t m0 xf h7 yd4 ff3 fs5 fc0 sc0 ls28 ws27">vehicl<span class="_ _b"></span>e network. </div><div class="t m0 xf h7 yd5 ff3 fs5 fc0 sc0 ls4e ws27">Node &#8212; A spec<span class="_ _b"></span>ific hardware co<span class="_ _b"></span>nnection of<span class="_ _b"></span> an ECU to the <span class="ls36 ws3b">physical media. A spe<span class="_ _5"></span>cific node <span class="_ _5"></span>may have mo<span class="_ _5"></span>re than </span></div><div class="t m0 xf h7 yd6 ff3 fs5 fc0 sc0 ls19 ws19">one address claimed<span class="_ _5"></span> on the netwo<span class="_ _5"></span>rk. </div><div class="t m0 xf h7 yd7 ff3 fs5 fc0 sc0 ls1b ws26">Non-Volatile &#8212; Reten<span class="_ _5"></span>tion of changeable memory val<span class="_ _5"></span>ues ev<span class="ls4d ws6d">en though <span class="_ _b"></span>power is turn<span class="_ _b"></span>ed off for any r<span class="_ _b"></span>eason. This </span></div><div class="t m0 xf h7 yd8 ff3 fs5 fc0 sc0 ls52 ws6e">term is used with respect to data values, suc<span class="_ _b"></span>h as EC<span class="ls4a ws6f">U addresses <span class="_ _5"></span>or NAMEs, th<span class="_ _5"></span>at are changed d<span class="_ _5"></span>uring use. </span></div><div class="t m0 xf h7 yd9 ff3 fs5 fc0 sc0 ls35 ws44">Read Only M<span class="_ _5"></span>emory (ROM) is techni<span class="_ _5"></span>cally non-volatile, <span class="_ _5"></span>but is not cha<span class="_ _5"></span>ngeable during use<span class="_ _5"></span> and thus not <span class="_ _5"></span>what is </div><div class="t m0 xf h7 yda ff3 fs5 fc0 sc0 ls24 ws22">referred<span class="_ _b"></span> to in these documen<span class="_ _b"></span>ts. </div><div class="t m0 xf h7 ydb ff3 fs5 fc0 sc0 ls1b ws1a">Negative-Acknowl<span class="_ _5"></span>edgment (NACK) &#8212; A<span class="_ _5"></span> response which<span class="_ _5"></span> i<span class="ls38 ws3e">ndicates tha<span class="_ _b"></span>t a message has not been<span class="_ _b"></span> understood or </span></div><div class="t m0 xf h7 ydc ff3 fs5 fc0 sc0 ls28 ws27">a requeste<span class="_ _b"></span>d action cou<span class="_ _b"></span>ld not be performe<span class="_ _b"></span>d. </div><div class="t m0 xf h7 ydd ff3 fs5 fc0 sc0 ls27 ws25">Packet &#8212; A single CA<span class="_ _5"></span>N data frame. <span class="_ _5"></span>This can also be<span class="_ _5"></span> a message i<span class="_ _5"></span>f the Parameter Group <span class="_ _5"></span>to be transferred <span class="_ _5"></span>can </div><div class="t m0 xf h7 yde ff3 fs5 fc0 sc0 ls1b ws17">be expressed in one CAN data fra<span class="_ _5"></span>me. </div><div class="t m0 xf h7 ydf ff3 fs5 fc0 sc0 ls38 ws3e">Parameter Grou<span class="_ _b"></span>p (PG) &#8212; A collection of<span class="_ _b"></span> parameters<span class="_ _b"></span> that are conveyed<span class="_ _b"></span> in a J1939 messag<span class="_ _b"></span>e. Parameter </div><div class="t m0 xf h7 ye0 ff3 fs5 fc0 sc0 ls1b ws17">Groups include co<span class="_ _5"></span>mmands, data, requests, acknowl<span class="_ _5"></span>edgments, and negative-acknowl<span class="_ _5"></span>edgments. The PG </div><div class="t m0 xf h7 ye1 ff3 fs5 fc0 sc0 ls32 ws2a">identifies the data in a messag<span class="_ _5"></span>e, regardless of whether it<span class="ls25 ws23"> is a single pack<span class="_ _b"></span>et or multipack<span class="_ _b"></span>et message. Parame<span class="_ _b"></span>ter </span></div><div class="t m0 xf h7 ye2 ff3 fs5 fc0 sc0 ls2c ws69">Groups are not de<span class="_ _5"></span>pendent on the <span class="_ _5"></span>source address field<span class="_ _5"></span> thus allowing any sou<span class="_ _5"></span>rce to send any P<span class="_ _5"></span>arameter Group. </div><div class="t m0 xf h7 ye3 ff3 fs5 fc0 sc0 ls40 ws50">Parameter<span class="_ _5"></span> Group Nu<span class="_ _5"></span>mber (PGN)<span class="_ _5"></span> &#8212; A three<span class="_ _5"></span> byte, <span class="_ _5"></span>24 bit, rep<span class="_ _5"></span>resentati<span class="_ _5"></span>on of the Re<span class="_ _5"></span>served B<span class="_ _5"></span>it, Data Pa<span class="_ _5"></span>ge, PDU </div><div class="t m0 xf h7 ye4 ff3 fs5 fc0 sc0 ls32 ws39">Format, and GE fields<span class="_ _5"></span>. The Parameter <span class="_ _5"></span>Group Number uniquel<span class="_ _5"></span>y identifies a particula<span class="_ _5"></span>r Parameter Group. </div><div class="t m0 xf h7 ye5 ff3 fs5 fc0 sc0 ls15 ws14">PDU Format <span class="_ _5"></span>(PF) &#8212; An 8 <span class="_ _5"></span>bit field in the 29<span class="_ _5"></span> bit identifier tha<span class="_ _5"></span>t identifies the<span class="_ _5"></span> PDU format and is <span class="_ _5"></span>used in whole<span class="_ _5"></span> or in </div><div class="t m0 xf h7 ye6 ff3 fs5 fc0 sc0 ls19 ws19">part to provide a la<span class="_ _5"></span>bel for a Parameter <span class="_ _5"></span>Group. It also<span class="_ _5"></span> is one of the<span class="_ _5"></span> fields used to <span class="_ _5"></span>determine the Paramete<span class="_ _5"></span>r </div><div class="t m0 xf h7 ye7 ff3 fs5 fc0 sc0 ls4a ws6f">Group Numb<span class="_ _5"></span>er which labels the <span class="_ _5"></span>data field o<span class="_ _5"></span>f the CAN Da<span class="_ _5"></span>ta Frame. </div><div class="t m0 xf h7 ye8 ff3 fs5 fc0 sc0 ls27 ws25">PDU Specific (PS) &#8212; An 8-bi<span class="_ _5"></span>t field in th<span class="_ _5"></span>e 29 bit identifie<span class="_ _5"></span>r whose definition<span class="_ _5"></span> depends upon<span class="_ _5"></span> the value of the P<span class="_ _5"></span>DU </div><div class="t m0 xf h7 ye9 ff3 fs5 fc0 sc0 ls37 ws59">Format field. It can be either a destination addre<span class="_ _5"></span>ss (DA)<span class="ls35 ws44"> or Group Extension<span class="_ _5"></span> (GE). It also is<span class="_ _5"></span> one of the <span class="_ _5"></span>fields </span></div><div class="t m0 xf h7 yea ff3 fs5 fc0 sc0 ls38 ws61">used to <span class="_ _b"></span>determine <span class="_ _b"></span>the Paramet<span class="_ _b"></span>er Group N<span class="_ _b"></span>umber which <span class="_ _b"></span>labels the d<span class="_ _b"></span>ata field o<span class="_ _b"></span>f the CAN D<span class="_ _b"></span>ata Frame.<span class="_ _b"></span> </div><div class="t m0 xf h7 yeb ff1 fs5 fc0 sc0 ls35 ws55">PDU1 Format <span class="ff3 ls0 ws0">&#8212; </span><span class="ls33 ws70">A PDU format used for messages th<span class="_ _5"></span>at are to <span class="ls2a ws5c">be sent to a destination address (DA). The PS </span></span></div><div class="t m0 xf h7 yec ff1 fs5 fc0 sc0 ls32 ws34">field contains the destination address (sp<span class="_ _5"></span>ecific or global). <span class="ff3 ls0 ws0"> </span></div><div class="t m0 xf h7 yed ff1 fs5 fc0 sc0 ls35 ws55">PDU2 Format <span class="ff3 ls0 ws0">&#8212; </span><span class="ls1d ws1f">A PDU format used to send informati<span class="_ _5"></span>on that <span class="ls2c ws46">has been labeled using the Group Extension </span></span></div><div class="t m0 xf h4 yee ff1 fs5 fc0 sc0 ls32 ws34">technique. This PDU does not contain a destination a<span class="_ _5"></span>ddress.<span class="ls2a ws5c"> The PS field contains the Group Extension in the </span></div><div class="t m0 xf h4 yef ff1 fs5 fc0 sc0 ls53 ws42">case of PDU2 fo<span class="_ _5"></span>rmats. </div><div class="c x9 y36 w2 h9"><div class="t m0 xa ha y37 ff8 fs7 fc0 sc0 ls0 ws0">Copyright SAE International </div></div><div class="c x9 y37 w2 h9"><div class="t m0 xa ha y37 ff9 fs7 fc0 sc0 ls0 ws0">Provided by IHS under license with SAE</div></div><div class="c xb y38 w3 h9"><div class="t m0 xa ha y37 ffa fs7 fc0 sc0 ls0 ws0">Not for Resale</div></div><div class="c x9 y38 w2 h9"><div class="t m0 xa ha y37 ffb fs7 fc0 sc0 ls0 ws0">No reproduction or networking permitted without license from IHS</div></div><div class="c x17 yf0 w5 he"><div class="t m1 x12 hc y66 ff10 fs8 fc0 sc0 ls0 ws0">--`,,,``,-`-`,,`,,`,`,,`---</div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>
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