1、BS ISO 17987-3:2016Road vehicles LocalInterconnect Network (LIN)Part 3: Protocol specificationBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 17987-3:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17987-3:2016.The U
2、K participation in its preparation was entrusted to TechnicalCommittee AUE/16, Data Communication (Road Vehicles).A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. U
3、sers are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 81730 4ICS 01.040.43; 43.020Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the auth
4、ority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments issued since publicationDate Text affectedBS ISO 17987-3:2016 ISO 2016Road vehicles Local Interconnect Network (LIN) Part 3: Protocol specificationVhicules routiers Rseau Internet local (LIN) Partie 3: Spcification du p
5、rotocoleINTERNATIONAL STANDARDISO17987-3First edition2016-08-15Reference numberISO 17987-3:2016(E)BS ISO 17987-3:2016ISO 17987-3:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publi
6、cation may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the count
7、ry of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 17987-3:2016ISO 17987-3:2016(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms, definitions, symbols an
8、d abbreviated terms . 13.1 Terms and definitions . 13.2 Symbols . 43.3 Abbreviated terms . 44 Node concept 54.1 General . 54.2 Concept of operation 64.2.1 Master and slave . 64.2.2 Frames 64.2.3 Data transport 75 Protocol requirements . 75.1 Signal . 75.1.1 Management 75.1.2 Types 75.1.3 Consistency
9、 . 75.1.4 Packing . 75.1.5 Reception and transmission 85.2 Frame 95.2.1 Transfer 95.2.2 Structure . 95.2.3 Frame length .135.2.4 Frame types . 145.3 Schedule tables 195.3.1 General. 195.3.2 Time definitions 195.3.3 Frame slot . 195.3.4 Schedule table handling 205.4 Task behaviour model 205.4.1 Gener
10、al. 205.4.2 Master task state machine 205.4.3 Slave task state machine 215.5 Status management . 235.5.1 General. 235.5.2 Concept . 235.5.3 Event-triggered frames .235.5.4 Reporting to the cluster 235.5.5 Reporting within own node. 246 Node configuration and identification .246.1 General 246.2 LIN p
11、roduct identification 256.2.1 Supplier ID, function ID and variant ID .256.2.2 Serial number 256.2.3 Wildcards 256.3 Slave node model . 256.3.1 Memory model 256.3.2 Slave node configuration variants . 266.3.3 Initial node address 276.3.4 PDU structure 27 ISO 2016 All rights reserved iiiContents Page
12、BS ISO 17987-3:2016ISO 17987-3:2016(E)6.3.5 Node configuration handling 296.3.6 Node configuration services . 29Annex A (normative) Definition of properties, frame identifiers and various examples 35Annex B (informative) LIN history and version compatibility 39Annex C (informative) LIN auto addressi
13、ng methods 43Bibliography .44iv ISO 2016 All rights reservedBS ISO 17987-3:2016ISO 17987-3:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally car
14、ried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
15、 ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the differe
16、nt approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may b
17、e the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents)
18、.Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Orga
19、nization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 31, Data communication.A list of all parts in the ISO 17987 series can be found on the ISO
20、website. ISO 2016 All rights reserved vBS ISO 17987-3:2016ISO 17987-3:2016(E)IntroductionISO 17987 (all parts) specifies the use cases, the communication protocol and physical layer requirements of an in-vehicle communication network called Local Interconnect Network (LIN).The LIN protocol as propos
21、ed is an automotive focused low speed UART-based network (Universal Asynchronous Receiver Transmitter). Some of the key characteristics of the LIN protocol are signal-based communication, schedule table-based frame transfer, master/slave communication with error detection, node configuration and dia
22、gnostic service communication.The LIN protocol is for low cost automotive control applications, for example, door module and air condition systems. It serves as a communication infrastructure for low-speed control applications in vehicles by providing the following: signal-based communication to exc
23、hange information between applications in different nodes; bit rate support from 1 kbit/s to 20 kbit/s; deterministic schedule table based frame communication; network management that wakes up and puts the LIN cluster into sleep mode in a controlled sanner; status management that provides error hand
24、ling and error signalling; transport layer that allows large amount of data to be transmitted (such as diagnostic services); specification of how to handle diagnostic services; electrical physical layer specifications; node description language describing properties of slave nodes; network descripti
25、on file describing behaviour of communication; application programmers interface.ISO 17987 (all parts) is based on the Open Systems Interconnection (OSI) Basic Reference Model as specified in ISO/IEC 7498-1 which structures communication systems into seven layers.The OSI model structures data commun
26、ication into seven layers called (top down) application layer (layer 7), presentation layer, session layer, transport layer, network layer, data link layer and physical layer (layer 1). A subset of these layers is used in ISO 17987 (all parts).ISO 17987 (all parts) distinguishes between the services
27、 provided by a layer to the layer above it and the protocol used by the layer to send a message between the peer entities of that layer. The reason for this distinction is to make the services, especially the application layer services and the transport layer services, reusable also for other types
28、of networks than LIN. In this way, the protocol is hidden from the service user and it is possible to change the protocol if special system requirements demand it.ISO 17987 (all parts) provides all documents and references required to support the implementation of the requirements related to. ISO 17
29、987-1: This part provides an overview of ISO 17987 (all parts) and structure along with the use case definitions and a common set of resources (definitions, references) for use by all subsequent parts. ISO 17987-2: This part specifies the requirements related to the transport protocol and the networ
30、k layer requirements to transport the PDU of a message between LIN nodes. ISO 17987-3: This part specifies the requirements for implementations of the LIN protocol on the logical level of abstraction. Hardware related properties are hidden in the defined constraints.vi ISO 2016 All rights reservedBS
31、 ISO 17987-3:2016ISO 17987-3:2016(E) ISO 17987-4: This part specifies the requirements for implementations of active hardware components which are necessary to interconnect the protocol implementation. ISO/TR 17987-5: This part specifies the LIN API (Application Programmers Interface) and the node c
32、onfiguration and identification services. The node configuration and identification services are specified in the API and define how a slave node is configured and how a slave node uses the identification service. ISO 17987-6: This part specifies tests to check the conformance of the LIN protocol im
33、plementation according to ISO 17987-2 and ISO 17987-3. This comprises tests for the data link layer, the network layer and the transport layer. ISO 17987-7: This part specifies tests to check the conformance of the LIN electrical physical layer implementation (logical level of abstraction) according
34、 to ISO 17987-4. ISO 2016 All rights reserved viiBS ISO 17987-3:2016BS ISO 17987-3:2016Road vehicles Local Interconnect Network (LIN) Part 3: Protocol specification1 ScopeThis document specifies the LIN protocol including the signal management, frame transfer, schedule table handling, task behaviour
35、 and status management and LIN master and slave node. It contains also OSI layer 5 properties according to ISO 14229-7 UDSonLIN-based node configuration and identification services (SID: B016to B816) belonging to the core protocol specification.A node (normally a master node) that is connected to mo
36、re than one LIN network is handled by higher layers (i.e. the application) not within the scope of this document.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references,
37、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 17987-2:2016, Road vehicles Local Interconnect Network (LIN) Part 2: Transport protocol and network layer servicesISO 17987-4:2016, Road vehicles Local Interco
38、nnect Network (LIN) Part 4: Electrical Physical Layer (EPL) specification 12V/24VISO 17987-6:2016, Road vehicles Local Interconnect Network (LIN) Part 6: Protocol conformance test specification3 Terms, definitions, symbols and abbreviated terms3.1 Terms and definitionsFor the purposes of this docume
39、nt, the terms and definitions given in ISO 17987-1 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3
40、.1.1big-endianmethod of storage of multi-byte numbers with the most significant bytes at the lowest memory addresses3.1.2broadcast NADaddressing every slave node on LININTERNATIONAL STANDARD ISO 17987-3:2016(E) ISO 2016 All rights reserved 1BS ISO 17987-3:2016ISO 17987-3:2016(E)3.1.3bus interfacehar
41、dware (transceiver, UART, etc.) of a node that is connected to the physical bus wire in a cluster (3.1.6)3.1.4bus sleep statestate in which a node only expects an internal or external wake upNote 1 to entry: The nodes switch output level to the recessive state.SOURCE: ISO 17987-2:2016, 6.1.23.1.5cla
42、ssic checksumused for diagnostic frames (3.1.10) and legacy LIN slave nodes frames of protocol version 1.xNote 1 to entry: The classic checksum considers the frame response data bytes only.3.1.6clustercommunication system comprising the LIN wire and all connected nodes3.1.7cluster designprocess of d
43、esigning the LDFSOURCE: ISO 17987-2:2016, 11.2.33.1.8dataresponse (3.1.27) part of a frame carrying one to eight data bytes (3.1.9)3.1.9data byteone of the bytes in the data3.1.10diagnostic framemaster request frame (3.1.21) and the slave response frame (3.1.29)3.1.11diagnostic trouble codeDTCvalue
44、making reference to a specific fault in a system implemented in the server3.1.12enhanced checksumchecksum model used for all non-diagnostic frames and legacy 1.x LIN slave nodes3.1.13event-triggered frameallowing multiple slave nodes to provide their response (3.1.27) to the same header3.1.14frameco
45、mmunication entity consisting of a header and response (3.1.27)3.1.15frame identifiervalue identifier uniquely a frame2 ISO 2016 All rights reservedBS ISO 17987-3:2016ISO 17987-3:2016(E)3.1.16frame slottime period reserved for the transfer of a specific frame on LINNote 1 to entry: This corresponds
46、to one entry in the schedule table.3.1.17go-to-sleep commandspecial master request frame (3.1.21) issued to force slave nodes to bus sleep state (3.1.4)SOURCE: ISO 17987-2:2016, 6.1.43.1.18headerfirst part of a frame consists of a break field, sync byte field and protected identifier; it is always s
47、ent by the LIN master node3.1.19LIN product identificationnumber containing the supplier and function and variant identification in a LIN slave node3.1.20little-endianmethod of storage of multi-byte numbers with the least significant bytes at the lowest memory addresses3.1.21master request framediag
48、nostic frames (3.1.10) issued by the master node frame identifier (3.1.15)3.1.22node capability fileNCFfile format describes a slave node as seen from the LIN network3.1.23operational stateslave node may transmit/receive frames in this stateSOURCE: ISO 17987-2:2016, 5.1.23.1.24protected identifierPI
49、D8-bit value consisting of a unique 6-bit frame identifier (3.1.15) and 2-bit parity3.1.25publishernode providing a frame response containing signals (3.1.30)3.1.26requestdiagnostic frame (3.1.10) transmitted by the master node requesting data from a slave nodes3.1.27responseanswer sent by a slave node on a diagnostic request (3.1.26)3.1.28servicecombination of a diagnostic request (3.1.26) and response (3.1.27) ISO 2016 All rights reserved 3BS ISO 17987-3:2016ISO 17987-3:2016(E)3.1.29slave respon
