Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 2: Transport protocol and network layer services

This document specifies a transport and network layer protocol with transport and network layer services tailored to meet the requirements of CAN-based vehicle network systems on controller area networks as specified in ISO 11898-1. The diagnostic communication over controller area network (DoCAN) protocol supports the standardized abstract service primitive interface as specified in ISO 14229-2 (UDS). This document supports different application layer protocols such as: — enhanced vehicle diagnostics (emissions-related system diagnostics beyond legislated functionality, non-emissions-related system diagnostics); — emissions-related on-board diagnostics (OBD) as specified in the ISO 15031 series and SAE J1979 series; — world-wide harmonized on-board diagnostics (WWH-OBD) as specified in the ISO 27145 series; and — end of life activation of on-board pyrotechnic devices (the ISO 26021 series). The transport protocol specifies an unconfirmed communication. NOTE This document does not determine whether CAN CC, CAN FD or both are recommended or required to be implemented by other standards referencing this document.

Véhicules routiers — Communication de diagnostic sur gestionnaire de réseau de communication (DoCAN) — Partie 2: Protocole de transport et services de la couche réseau

General Information

Status
Published
Publication Date
04-Apr-2024
Current Stage
6060 - International Standard published
Start Date
05-Apr-2024
Due Date
19-Nov-2023
Completion Date
05-Apr-2024
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ISO 15765-2:2024 - Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 2: Transport protocol and network layer services Released:5. 04. 2024
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ISO/FDIS 15765-2 - Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 2: Transport protocol and network layer services Released:4. 12. 2023
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International
Standard
ISO 15765-2
Fourth edition
Road vehicles — Diagnostic
2024-04
communication over Controller
Area Network (DoCAN) —
Part 2:
Transport protocol and network
layer services
Véhicules routiers — Communication de diagnostic sur
gestionnaire de réseau de communication (DoCAN) —
Partie 2: Protocole de transport et services de la couche réseau
Reference number
ISO 15765-2:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
ISO 15765-2:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

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ISO 15765-2:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 2
4.1 Symbols .2
4.2 Abbreviated terms .3
5 Conventions . 4
6 I SO 11898-1 CAN data link layer extension . 5
6.1 CAN CC and CAN FD frame feature comparison .5
6.2 Mapping of transport and network layer attributes to CAN data frames .5
7 T_Data abstract service primitive interface definition . 7
7.1 T_Data services.7
7.2 T_Data interface .7
7.3 Data type definitions .8
8 Transport and network layer services . . 8
8.1 General .
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 15765-2
ISO/TC 22/SC 31
Road vehicles — Diagnostic
Secretariat: DIN
communication over Controller Area
Voting begins on:
2023-12-18 Network (DoCAN) —
Voting terminates on:
Part 2:
2024-02-12
Transport protocol and network layer
services
Véhicules routiers — Communication de diagnostic sur gestionnaire
de réseau de communication (DoCAN) —
Partie 2: Protocole de transport et services de la couche réseau
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 15765-2:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/FDIS 15765-2:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 15765-2
ISO/TC 22/SC 31
Road vehicles — Diagnostic
Secretariat: DIN
communication over Controller Area
Voting begins on:
Network (DoCAN) —
Voting terminates on:
Part 2:
Transport protocol and network layer
services
Véhicules routiers — Communication de diagnostic sur gest ionnaire
de réseau de communication (DoCAN) —
Partie 2: Protocole de transport et services de la couche réseau
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication 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 ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 15765-2:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/FDIS 15765-2:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
5 Conventions . 4
6 I SO 11898-1 CAN data link layer extension . 5
6.1 Classical CAN and
...

DRAFT INTERNATIONAL STANDARD
ISO/preFDISFDIS 15765-2:2023(E)
ISO/TC 22/SC 31
Date: 2023-10-02
Secretariat: DIN
Date: 2023-12-04
Road vehicles — Diagnostic communication over Controller Area
Network (DoCAN) — —
Part 2:
Transport protocol and network layer services
Véhicules routiers — Communication de diagnostic sur gestionnairegest ionnaire de réseau de
communication (DoCAN) — —
Partie 2: Protocole de transport et services de la couche réseau
FDIS stage

---------------------- Page: 1 ----------------------
ISO/FDIS 15765-2:2023(E)
© ISO 20222023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ii © ISO 2023 – All rights reserved
 © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 15765-2:2023(E)
Contents Page
Foreword . vi
Introduction . viii
Part 2: Transport protocol and network layer services . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
5 Conventions . 5
6 ISO 11898-1 CAN data link layer extension . 5
6.1 Classical CAN and CAN FD frame feature comparison . 5
6.2 Mapping of transport and network layer attributes to CAN data frames . 6
7 T_Data abstract service primitive interface definition . 7
7.1 T_Data services . 7
7.2 T_Data interface . 8
7.3 Data type definitions . 8
8 Transport and network layer services . 9
8.1 General . 9
8.2 Transport and network layer abstract service primitives . 10
8.2.1 Data.req .
...

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