SAE J 1939-81-2017 Network Management.pdf
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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 2016 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:/standards.sae.org/J1939/81_201703 SURFACE VEHICLE RECOMMENDED PRACTICE J1939-81 MAR2017 Issued 1997-07 Revised 2
5、017-03 Superseding J1939-81 FEB2016 Network Management RATIONALE Repaired broken cross reference links. FOREWORD The SAE J1939 communications network is defined using a collection of individual SAE J1939 documents based upon the layers of the Open System Interconnect (OSI) model for computer communi
6、cations architecture. The SAE J1939-81 document defines the address arbitration process and messages required by all ECUs to acquire and maintain a network address on an SAE J1939 communication network. The SAE J1939 communications network is a high speed ISO 11898-1 CAN based communications network
7、 that supports real-time closed loop control functions, simple information exchanges, and diagnostic data exchanges between Electronic Control Units (ECUs) physically distributed throughout the vehicle. The SAE J1939 communications network is developed for use in heavy-duty environments and suitable
8、 for horizontally integrated vehicle industries. The SAE J1939 communications network is applicable for light-duty, medium-duty, and heavy-duty vehicles used on-road or off-road and for appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of inter
9、est include, but are not limited to, on-highway and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements. The physical layer aspects of SAE J1939 reflect its design goal for use in heavy-duty environments. Horizontally integrated vehicles involve t
10、he integration of different combinations of loose package components, like as engine and transmissions that are sourced from many different component suppliers. The SAE J1939 common communication architecture strives to offer an open interconnect system that allows the ECUs associated with different
11、 component manufacturers to communicate with each other. SAE INTERNATIONAL J1939-81 MAR2017 Page 2 of 60 TABLE OF CONTENTS 1. SCOPE 4 2. REFERENCES 4 2.1 Applicable Documents 4 2.1.1 SAE Publications . 4 3. DEFINITIONS . 4 3.1 Terminology Used in Network Management . 4 3.1.1 Additional Terms and Def
12、initions 4 4. TECHNICAL REQUIREMENTS 5 4.1 General 5 4.2 NAME and Address Requirements . 6 4.2.1 NAME (SPN 2848) 6 4.2.2 Addresses . 14 4.3 Address Configuration and Capability . 15 4.3.1 Arbitrary Address Capable CA 15 4.3.2 Single Address Capable CA . 15 4.4 Types of CAs . 16 4.4.1 Standard CAs 16
13、 4.4.2 Diagnostic/Development Tool CAs . 17 4.4.3 Network Interconnection CAs . 17 4.5 Network Management Procedures - Required . 18 4.5.1 Address Claim Prioritization 18 4.5.2 Address Claim Requirements . 18 4.5.3 Address Claim Initialization Rules . 19 4.5.4 Message Sequences for Initialization .
14、20 4.5.5 Requests for Address Claimed for Self-Configurable Addressing CAs 21 4.5.6 Construction of Address to NAME Association Tables . 21 4.5.7 Request Message (PGN 59904) for Address Claimed (PGN 60928) . 22 4.5.8 Address Claimed/Cannot Claim (PGN 60928) . 22 4.6 Network Management Procedures - O
15、ptional . 24 4.6.1 Commanded Address (PGN 65240) . 24 4.6.2 NAME Management 26 4.6.3 Working Sets . 40 4.7 Network Error Management 44 4.7.1 Cannot Claim Address 44 4.7.2 Address Violation 44 4.8 Minimum Network Management Functionality 44 4.8.1 Reaction to Power Supply and Other Related ECU Disturb
16、ances . 44 4.8.2 Minimum Network Management Capability 45 5. NOTES 46 5.1 Revision Indicator 46 SAE INTERNATIONAL J1939-81 MAR2017 Page 3 of 60 APPENDIX A INITIALIZATION SEQUENCE TIMING DIAGRAMS 47 APPENDIX B SUMMARY OF REQUIREMENTS AND CAPABILITIES OF CAS . 54 APPENDIX C NAME EXAMPLES . 55 APPENDIX
17、 D STATE TRANSITION DIAGRAMS FOR ADDRESS CLAIMING PROCESSES 57 FIGURE 1 FIELDS OF NAME 7 FIGURE 2 EXAMPLE OF NAME MAPPING TO DATA BYTES 8 FIGURE 3 DEPENDENCIES IN THE NAME FIELDS 13 TABLE 1 NAME FIELDS INFORMATION 7 TABLE 2 NETWORK MANAGEMENT MESSAGES 22 TABLE 3 NM MESSAGE FIELDS 27 TABLE 4 PARAMETE
18、R USE BY MODE 28 TABLE 5 SUMMARY OF REQUIREMENTS AND CAPABILITIES OF CAS . 54 SAE INTERNATIONAL J1939-81 MAR2017 Page 4 of 60 1. SCOPE SAE J1939-81 Network Management defines the processes and messages associated with managing the source addresses of applications communicating on an SAE J1939 networ
19、k. Network management is concerned with the management of source addresses and the association of those addresses with an actual function and with the detection and reporting of network related errors. Due to the nature of management of source addresses, network management also specifies initializat
20、ion processes, requirements for reaction to brief power outages and minimum requirements for ECUs on the network. 2. REFERENCES General information regarding this series of recommended practices is found in SAE J1939. 2.1 Applicable Documents The following publications form a part of this specificat
21、ion to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), ww
22、w.sae.org. SAE J1939 Serial Control and Communications Heavy Duty Vehicle Network - Top Level Document SAE J1939/21 Data Link Layer SAE J1939/31 Network Layer SAE J1939/71 Vehicle Application Layer SAE J1939/73 Application Layer - Diagnostics SAE J1939DA Digital Annex of Serial Control And Communica
23、tion Heavy Duty Vehcile Network Data 3. DEFINITIONS See SAE J1939 document for definition of terms not defined in this document. 3.1 Terminology Used in Network Management 3.1.1 Additional Terms and Definitions 3.1.1.1 Address Configuration and Capability Address configuration is the method by which
24、 a particular Controller Application (CA) determines the source address it shall use for Address Claim. For the purposes of the Address Claim process, there are two capabilities: Single Address Capable and Arbitrary Address Capable. These are described in detail in 4.3. For the purposes of network m
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