EN IEC 61851-24:2024

Electric vehicle conductive charging system - Part 24: Digital communication between a DC EV supply equipment and an electric vehicle for control of DC charging

IEC 61851-24:2023, together with IEC 61851-23, applies to digital communication between a DC EV supply equipment and an electric road vehicle (EV) for control of conductive DC power transfer, with a rated supply voltage up to 1 000 V AC or up to 1 500 V DC and a rated output voltage up to 1 500 V DC. This document also applies to digital communication between the DC EV charging/discharging station and the EV for system A, as specified in Annex A. The EV charging mode is mode 4, according to IEC 61851-23. Annex A, Annex B, and Annex C give descriptions of digital communications for control of DC charging specific to DC EV charging systems A, B and C as defined in IEC 61851-23. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Annex A and Annex B have been updated in line with IEC 61851-23:2023 and relevant standards.

Konduktive Ladesysteme für Elektrofahrzeuge - Teil 24: Digitale Kommunikation zwischen einer Gleichstromversorgungseinrichtung für Elektrofahrzeuge und dem Elektrofahrzeug zur Steuerung des Gleichstromladevorgangs

Système de charge conductive pour véhicules électriques - Partie 24: Communication numérique entre le système d’alimentation à courant continu et le véhicule électrique pour le contrôle de la charge à courant continu

IEC 61851-24:2023 avec l’IEC 61851-23, s'applique à la communication numérique entre le système d’alimentation à courant continu et un véhicule routier électrique (VE pour "véhicule électrique") pour le contrôle de transfert de puissance conductive à courant continu, avec une tension d'alimentation assignée jusqu'à 1 000 V en courant alternatif ou jusqu'à 1 500 V en courant continu, et une tension de sortie assignée jusqu’à 1 500 V en courant continu. Le présent document s’applique également à la communication numérique entre la borne de charge/décharge à courant continu et le VE pour le système A, comme le spécifie l’Annexe A. Le mode de charge du véhicule électrique est le mode 4 conformément à l’IEC 61851-23. L’Annexe A, l’Annexe B et l’Annexe C décrivent des communications numériques pour le contrôle de la charge à courant continu, spécifiques aux systèmes A, B et C de charge à courant continu pour véhicule électrique, comme cela est défini dans l’IEC 61851-23 Cette seconde édition annule et remplace la première édition parue en 2014. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'Annexe A et l'Annexe B ont été mises à jour conformément à la norme

Sistem kabelskega napajanja električnih vozil - 24. del: Digitalna komunikacija med enosmerno (DC) EV-napajalno postajo in električnim vozilom za krmiljenje enosmernega (DC) napajanja (IEC 61851-24:2023)

General Information

• Status: Published
• Publication Date: 05-Dec-2024
• Withdrawal Date: 06-Mar-2022
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CLC/TC 69X - Electrical systems for electric road vehicles
• Drafting Committee: IEC/TC 69 - IEC_TC_69
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 06-Dec-2024
• Completion Date: 06-Dec-2024
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/468 - Standardisation mandate addressed to CEN and CENELEC and ETSI concerning the charging of electric vehicles
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Ref Project: SIST EN IEC 61851-24:2025 - Electric vehicle conductive charging system - Part 24: Digital communication between a DC EV charging station and an electric vehicle for control of DC charging (IEC 61851-24:2023)

Relations

• Replaces: EN 61851-24:2014 - Electric vehicle conductive charging system - Part 24: Digital communication between a d.c. EV charging station and an electric vehicle for control of d.c. charging
• Effective Date: 23-Jan-2023
• Replaces: EN 61851-24:2014/AC:2015 - Electric vehicle conductive charging system - Part 24: Digital communication between a d.c. EV charging station and an electric vehicle for control of d.c. charging
• Effective Date: 18-Oct-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2025
Nadomešča:
SIST EN 61851-24:2014
SIST EN 61851-24:2014/AC:2015
Sistem kabelskega napajanja električnih vozil - 24. del: Digitalna komunikacija
med enosmerno (DC) EV-napajalno postajo in električnim vozilom za krmiljenje
enosmernega (DC) napajanja (IEC 61851-24:2023)
Electric vehicle conductive charging system - Part 24: Digital communication between a
DC EV charging station and an electric vehicle for control of DC charging (IEC 61851-
24:2023)
Konduktive Ladesysteme für Elektrofahrzeuge - Teil 24: Digitale Kommunikation
zwischen einer Gleichstromladestation für Elektrofahrzeuge und dem Elektrofahrzeug
zur Steuerung des Gleichstromladevorgangs (IEC 61851-24:2023)
Système de charge conductive pour véhicules électriques - Partie 24: Communication
digitale entre la borne de charge à courant continu et le véhicule électrique pour le
contrôle de la charge à courant continu (IEC 61851-24:2023)
Ta slovenski standard je istoveten z: EN IEC 61851-24:2024
ICS:
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61851-24

NORME EUROPÉENNE
EUROPÄISCHE NORM December 2024
ICS 43.120 Supersedes EN 61851-24:2014; EN 61851-
24:2014/AC:2015
English Version
Electric vehicle conductive charging system - Part 24: Digital
communication between a DC EV supply equipment and an
electric vehicle for control of DC charging
(IEC 61851-24:2023)
Système de charge conductive pour véhicules électriques - Konduktive Ladesysteme für Elektrofahrzeuge - Teil 24:
Partie 24: Communication numérique entre le système Digitale Kommunikation zwischen einer
d'alimentation à courant continu et le véhicule électrique Gleichstromversorgungseinrichtung für Elektrofahrzeuge
pour le contrôle de la charge à courant continu und dem Elektrofahrzeug zur Steuerung des
(IEC 61851-24:2023) Gleichstromladevorgangs
(IEC 61851-24:2023)
This European Standard was approved by CENELEC on 2024-10-16. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61851-24:2024 E

European foreword
The text of document 69/909/FDIS, future edition 2 of IEC 61851-24, prepared by TC 69 "Electrical
power/energy transfer systems for electrically propelled road vehicles and industrial trucks" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61851-24:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-12-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-12-31
document have to be withdrawn
This document supersedes EN 61851-24:2014 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61851-24:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 61851-1:2017 NOTE Approved as EN IEC 61851-1:2019 (not modified)
ISO 8751 NOTE Approved as EN ISO 8751
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The 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, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61851-23 2023 Electric vehicle conductive charging system - - -
Part 23: DC electric vehicle supply equipment
ISO/TR 8713 - Electrically propelled road vehicles - Vocabulary - -
ISO 11898-1 2015 Road vehicles - Controller area network (CAN) - - -
Part 1: Data link layer and physical signalling
ISO 11898-2 2016 Road vehicles - Controller area network (CAN) - - -
Part 2: High-speed medium access unit
ISO 15118-2 2014 Road vehicles - Vehicle-to-Grid Communication EN ISO 15118-2 2016
Interface - Part 2: Network and application
protocol requirements
IEC 61851-24 ®
Edition 2.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric vehicle conductive charging system –

Part 24: Digital communication between a DC EV supply equipment and an

electric vehicle for control of DC charging

Système de charge conductive pour véhicules électriques –

Partie 24: Communication numérique entre le système d’alimentation à courant

continu et le véhicule électrique pour le contrôle de la charge à courant continu

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 43.120  ISBN 978-2-8322-7617-4

– 2 – IEC 61851-24:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 System configuration . 7
5 Digital communication architecture . 7
6 Charging control process . 7
7 Overview of charging control . 7
8 Exchanged information for DC charging control . 8
Annex A (normative) Digital communication for control of DC EV charging system A . 10
A.1 General . 10
A.2 Digital communication actions during charging control process . 10
A.3 Digital communication of DC charging control . 14
A.4 Parameter definition . 15
A.5 Physical/data link layer . 25
A.5.1 Communication circuit . 25
A.5.2 Terminating resistor . 25
A.5.3 Noise filter . 25
A.5.4 CAN transceiver . 25
A.5.5 Twisted-pair line . 25
A.5.6 Overvoltage protection for the CAN communication circuit . 25
A.5.7 Communication protocol . 25
A.5.8 CAN bus . 26
A.5.9 Transmission process . 26
A.5.10 CAN reception error . 27
A.6 Bi-directional power flow . 27
A.6.1 Digital communication actions during charging/discharging control
process. 27
A.6.2 Digital communication of DC charging/discharging control . 31
A.6.3 Parameter definition . 32
A.6.4 Charging/discharging control process . 41
A.6.5 Exchanged information for DC charging/discharging control . 41
Annex B (normative) Digital communication for control of DC charging system B . 43
B.1 General . 43
B.2 Digital communication of DC charging control . 43
B.3 Digital communication actions during charging control process . 43
B.4 Parameter definition . 44
B.5 Physical/data link layer . 48
Annex C (normative) Digital communication for control of DC charging system C . 50
C.1 General . 50
C.2 Required exchange parameters . 50
Bibliography . 52

Figure 1 – Digital communication between a DC EV supply equipment and an electric
vehicle for control of DC charging . 8
Figure A.1 – Sequence diagram of DC charging control communication for system A . 14

IEC 61851-24:2023 © IEC 2023 – 3 –
Figure A.2 – CAN communication circuit . 25
Figure A.3 – CAN bus . 26
Figure A.4 – Transmission cycle . 27
Figure A.5 – Sequence diagram of DC charging/discharging control communication for
system A . 31
Figure B.1 – Sequence diagram of DC charging control communication for system B . 43

Table 1 – Exchanged information for DC charging control . 8
Table A.1 – Communication actions and parameters during DC charging control
process between system A station and vehicle . 11
Table A.2 – Exchanged parameter during DC charging control process from vehicle to
system A station . 16
Table A.3 – Exchanged param
...