ISO 11898-1:2015

Road vehicles — Controller area network (CAN) — Part 1: Data link layer and physical signalling

ISO 11898-1:2015 specifies the characteristics of setting up an interchange of digital information between modules implementing the CAN data link layer. Controller area network is a serial communication protocol, which supports distributed real-time control and multiplexing for use within road vehicles and other control applications. ISO 11898-1:2015 specifies the Classical CAN frame format and the newly introduced CAN Flexible Data Rate Frame format. The Classical CAN frame format allows bit rates up to 1 Mbit/s and payloads up to 8 byte per frame. The Flexible Data Rate frame format allows bit rates higher than 1 Mbit/s and payloads longer than 8 byte per frame. ISO 11898-1:2015 describes the general architecture of CAN in terms of hierarchical layers according to the ISO reference model for open systems interconnection (OSI) according to ISO/IEC 7498‑1. The CAN data link layer is specified according to ISO/IEC 8802‑2 and ISO/IEC 8802‑3. ISO 11898-1:2015 contains detailed specifications of the following: logical link control sub-layer; medium access control sub-layer; and physical coding sub-layer. There are three implementation options. They are the following: support of the Classical CAN frame format only, not tolerating the Flexible Data Rate frame format; support of the Classical CAN frame format and tolerating the Flexible Data Rate frame format; and support of the Classical CAN frame format and the Flexible Data Rate frame format. The last option is recommended to be implemented for new designs.

Véhicules routiers — Gestionnaire de réseau de communication (CAN) — Partie 1: Couche liaison de données et signalisation physique

General Information

• Status: Withdrawn
• Publication Date: 13-Dec-2015
• ICS: 43.040.15 - Car informatics. On board computer systems
• Technical Committee: ISO/TC 22/SC 31 - Data communication
• Drafting Committee: ISO/TC 22/SC 31/WG 3 - In-vehicle networks
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 24-May-2024

Relations

• Revised: ISO 11898-1:2024 - Road vehicles — Controller area network (CAN) — Part 1: Data link layer and physical coding sublayer
• Effective Date: 28-Jan-2023
• Revises: ISO 11898-1:2003 - Road vehicles — Controller area network (CAN) — Part 1: Data link layer and physical signalling
• Effective Date: 02-Mar-2013

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11898-1
Second edition
2015-12-15
Road vehicles — Controller area
network (CAN) —
Part 1:
Data link layer and physical signalling
Véhicules routiers — Gestionnaire de réseau de communication
(CAN) —
Partie 1: Couche liaison de données et signalisation physique
Reference number
ISO 11898-1:2015(E)
©
ISO 2015

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ISO 11898-1:2015(E)

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ISO 11898-1:2015(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Conformance . 1
3 Normative references . 2
4 Terms and definitions . 2
5 Symbols and abbreviated terms . 5
6 Basic concepts of CAN . 7
6.1 CAN properties . 7
6.2 Frames . 8
6.3 Bus access method . 8
6.4 Information routing . 8
6.5 Network flexibility . 8
6.6 Data consistency . 8
6.7 Remote data request . 8
6.8 Error detection . 9
6.9 Error signalling and recovery time . 9
6.10 ACK . 9
6.11 Automatic retransmission .
...