1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1939/74_201509 SURFACE VEHICLE RECOMMENDED PRACTICE J1939-74 SEP2015 Issued 200
5、4-09 Revised 2006-11 Reaffirmed 2015-09 Superseding J1939-74 NOV2010 Application - Configurable Messaging RATIONALE J1939-74 has been reaffirmed to comply with the SAE five-year review policy. Foreword This series of SAE Recommended Practices have been developed by the Truck and Bus Control and Comm
6、unications Network Subcommittee of the Truck and Bus Electrical and Electronics Committee. The objectives of the subcommittee are to develop information reports, recommended practices, and standards concerned with the requirements, design, and usage of devices that transmit electronic signals and co
7、ntrol information among vehicle components. The usage of these Recommended Practices is not limited to truck and bus applications; other applications may be accommodated with immediate support being provided for construction and agricultural equipment, and stationary power systems. These SAE Recomme
8、nded Practices are intended as a guide toward standard practice and are subject to change so as to keep pace with experience and technical advances. This application layer may be used for all SAE J1939 applications. It is the characteristic that is common across all SAE J1939 applications. TABLE OF
9、CONTENTS 1 Scope . 4 1.1 Rationale 4 2 References . 4 2.1 Applicable Publications 4 2.1.1 SAE Publications 4 2.2 Related Publications 4 2.2.1 ISO Publications . 4 3 Definitions. 5 4 Abbreviations . 5 5 Technical Requirements 5 5.1 General . 5 5.2 Overview of Configuration Services . 5 5.2.1 Developm
10、ental History . 6 5.2.2 Harmonization 6 _ 5.2.3 Operation and Related Requirements . 7 5.2.3.1 Effects Upon Request Messages . 7 5.2.3.2 Additional CA Requirements 9 5.2.3.3 Application for New Parameter Definitions 9 5.2.3.4 Continuity Across Power Cycles 9 5.3 The Configuration Service . 9 5.3.1 C
11、onfiguration Identification Message . 9 5.3.1.1 PGN of Message Being Configured . 10 5.3.1.2 Parameter Being Included . 11 5.3.1.3 Position of Configured Parameter . 11 5.3.1.4 Number of Parameters Included 12 5.3.1.5 Message Will Be Used Proprietarily . 12 5.3.1.6 Message Will Use Transport Protoco
12、l . 13 5.3.1.7 First Parameter Only Being Identified 13 5.3.1.8 Starting Bit for this Parameter 14 5.3.1.9 Requirements Related to Configuration Identification Message 16 5.3.2 Parameter Locate Message . 16 5.3.2.1 Parameter to be Located 17 5.3.2.2 Parameter Locate Command . 18 5.3.3 Request for Co
13、mplete Configurable Message Set 18 5.3.3.1 Message Selection Control 19 5.3.3.2 PGN of Configurable Message Desired . 20 5.4 The Set of Destination Specific Proprietarily Configurable Messages 20 5.4.1 Destination Specific Proprietarily Configurable Message 1 . 20 5.4.1.1 Parameter Content of Destin
14、ation Specific Proprietarily Configurable Messages 21 5.4.1.2 DLC for Destination Specific Proprietarily Configurable Messages 21 5.4.2 Destination Specific Proprietarily Configurable Message 2 . 21 5.4.2.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 21 5.4.2.2 DLC
15、for Destination Specific Proprietarily Configurable Messages 22 5.4.3 Destination Specific Proprietarily Configurable Message 3 . 22 5.4.3.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 22 5.4.3.2 DLC for Destination Specific Proprietarily Configurable Messages 22 5.
16、4.4 Destination Specific Proprietarily Configurable Message 4 . 23 5.4.4.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 23 5.4.4.2 DLC for Destination Specific Proprietarily Configurable Messages 23 5.4.5 Destination Specific Proprietarily Configurable Message 5 . 24
17、 5.4.5.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 24 5.4.5.2 DLC for Destination Specific Proprietarily Configurable Messages 24 5.4.6 Destination Specific Proprietarily Configurable Message 6 . 25 5.4.6.1 Parameter Content of Destination Specific Proprietarily C
18、onfigurable Messages 25 5.4.6.2 DLC for Destination Specific Proprietarily Configurable Messages 25 5.4.7 Destination Specific Proprietarily Configurable Message 7 . 26 5.4.7.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 26 5.4.7.2 DLC for Destination Specific Propr
19、ietarily Configurable Messages 26 5.4.8 Destination Specific Proprietarily Configurable Message 8 . 27 5.4.8.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 27 5.4.8.2 DLC for Destination Specific Proprietarily Configurable Messages 27 SAE INTERNATIONAL J1939-74 SEP20
20、15 2 of 70_ 5.4.9 Destination Specific Proprietarily Configurable Message 9 . 28 5.4.9.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 28 5.4.9.2 DLC for Destination Specific Proprietarily Configurable Messages 28 5.4.10 Destination Specific Proprietarily Configurable
21、 Message 10 . 29 5.4.10.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 29 5.4.10.2 DLC for Destination Specific Proprietarily Configurable Messages 29 5.4.11 Destination Specific Proprietarily Configurable Message 11 . 30 5.4.11.1 Parameter Content of Destination Spe
22、cific Proprietarily Configurable Messages 30 5.4.11.2 DLC for Destination Specific Proprietarily Configurable Messages 30 5.4.12 Destination Specific Proprietarily Configurable Message 12 . 31 5.4.12.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 31 5.4.12.2 DLC for
23、Destination Specific Proprietarily Configurable Messages 31 5.4.13 Destination Specific Proprietarily Configurable Message 1 . 32 5.4.13.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 32 5.4.13.2 DLC for Destination Specific Proprietarily Configurable Messages 32 5.4
24、.14 Destination Specific Proprietarily Configurable Message 14 . 33 5.4.14.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 33 5.4.14.2 DLC for Destination Specific Proprietarily Configurable Messages 33 5.4.15 Destination Specific Proprietarily Configurable Message 15
25、 . 34 5.4.15.1 Parameter Content of Destination Specific Proprietarily Configurable Messages 34 5.4.15.2 DLC for Destination Specific Proprietarily Configurable Messages 34 5.4.16 Destination Specific Proprietarily Configurable Message 16 . 35 5.4.16.1 Parameter Content of Destination Specific Propr
26、ietarily Configurable Messages 35 5.4.16.2 DLC for Destination Specific Proprietarily Configurable Messages 35 5.5 The Set of Parameters for Use within the Configurable Messages . 35 6 Notes 36 6.1 Marginal Indicia 36 Appendix A ASSUMPTIONS USED TO DESIGN CONFIGURABLE MESSAGING 37 Appendix B APPLICA
27、TION RULES REGARDING CONFIGURABLE MESSAGING . 39 Appendix C PARAMETERS FOR CONFIGURABLE MESSAGING . 40 LIST OF FIGURES There are no Figures contained in this document LIST OF TABLES There are no Tables contained in this document SAE INTERNATIONAL J1939-74 SEP2015 3 of 70_ 1. Scope The SAE J1939 docu
28、ments are intended for light, medium, and heavy-duty vehicles used on or off road as well as appropriate stationary applications which use vehicle derived components (e.g. generator sets). Vehicles of interest include, but are not limited to, on- and off-highway trucks and their trailers, constructi
29、on equipment, and agricultural equipment and implements. The purpose of these documents is to provide an open interconnect system for electronic systems. It is the intention of these documents to allow Electronic Control Units to communicate with each other by providing a standard architecture. This
30、 particular document, SAE J1939-74, describes the message structure for a set of messages which enable the user to determine and announce to others on the network, the parameter placement within a particular message from the special set of messages defined within this document. 1.1 Rationale SAE J19
31、39-74 has been reaffirmed to comply with the SAE 5-Year Review policy. 2. References 2.1 Applicable Publications General information regarding this series of recommended practices is found in SAE J1939. The latest issue of SAE publications shall apply. 2.1.1 SAE PUBLICATIONS Available from SAE, 400
32、Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J1939Recommended Practice for a Serial Control and Communications Vehicle Network is the parent document and should be referenced in general SAE J1939-21Data Link
33、Layer SAE J1939-71Vehicle Application Layer SAE J1939-73Application Layer - Diagnostics SAE J1939-81Network Management 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this document. 2.2.1 ISO PUBLICATIONS Available from AN
34、SI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 11783Tractors, machinery for agriculture and forestry Serial control and communications data network SAE INTERNATIONAL J1939-74 SEP2015 4 of 70_ 3. Definitions Terms and definitions are defined in SAE J1939. 4. Ab
35、breviations CA Controller Application the function of a system receiving a NAME within an ecu see SAE J193981, Network Management, for more details SPN Suspect Parameter Number See SAE J1939 for any terms and or definitions not found in this document. 5. Technical Requirements This configurable mess
36、aging application provides for the variable packing of certain parameters within a particular message from a set of messages. 5.1 General The definitions provided herein are intended to satisfy the needs of all potential users of the SAE J1939 network. These definitions are intended to be suitable f
37、or applications in any of the industry groups defined within SAE J1939. The capabilities provided allow CAs to configure and identify to other network CAs the location of certain parameters (each identified by its SPN) within certain special messages (each identified by PGN). These capabilities also
38、 provide the means by which a CA can request the identification of the message (PGN) containing a certain parameter (SPN). This document will define the configuration process, a set of messages which can and may be configured, and the messages used to identify this configuration to the rest of a net
39、work. This document will also contain the definitions of the only set of parameters (identified by SPN) to be used exclusively within one of the configured messages defined herein. It is intended that these parameters be completely defined within this document before use on a network. New features,
40、Parameter Groups and Parameter definitions will be added over time; it is anticipated that this document will continuously evolve as long as the SAE J1939 network is an active Recommended Practice. Such growth will be implemented in such a way as to ensure backward compatibility with earlier version
41、s. At the time of initial publication, many of these growth areas are identified but are yet to be defined. Such identification is provided so that the reader will be aware of those additions that are already planned for the document. This procedure will define a number of messages that may be confi
42、gured, presently there are 16 configurable PDU 1 messages. 5.2 Overview of Configuration Services The configuration messages and processes are intended to provide services needed to improve utilization of bus bandwidth, facilitate organization of data within messages in a fashion that can allow opti
43、mization of vehicle topology, and allow identification of this organization to other CAs. SAE INTERNATIONAL J1939-74 SEP2015 5 of 70_ 5.2.1 DEVELOPMENTAL HISTORY These messages were originally proposed for Agricultural Applications, but have been harmonized and standardized for all Industry Groups.
44、In the Agricultural Industry specific example, self-propelled vehicles with very different topologies need to use common parameters, so that third party vendors can know the identity of parameters on the networks. But the message groupings must fit the vehicle topology in order to have sufficient ti
45、me to transmit all of the parameters. For this Agricultural need it is desired that the source and destination addresses, as well as, the message configuration, be used to identify the data within a particular message (just as source and destination address are needed to identify the data within the
46、 proprietary A message identified in SAE J1939-21). These messages need to be configurable in the sense that the groupings of parameters within a message were not predefined within one of the network standard documents, but by the data within another message (the Proprietary Message Configuration Id
47、entification Message). The parameters being used are to be predefined within this network document, just as other parameters are defined within one of the other network documents. The Agricultural need was limited to destination specific messages and thus the original proposal was tailored to that end. Several revisions studied allowing other messages, but committee work has deemed it best to maintain this restriction, that the only configurable messages are destination specific messages. The new aspect of this document is the technique by which
