IEC 62056-8-12:2023

Electricity metering data exchange – The DLMS<em>®</em>/COSEM suite - Part 8-12: Communication profile for Low-Power Wide Area Networks (LPWANs)

IEC 62056-8-12:2023 describes the use of DLMS®/COSEM for Low-Power Wide Area Networks (LPWANs). It specifies how the COSEM data model and the DLMS®/COSEM application layer can be used over various LPWAN technologies using an adaptation layer based on IETF RFC 8724, and in particular over LoRaWAN.
This profile is intended to be used with LPWANs as defined in IETF RFC 8724, in particular LoRaWAN. Low-Power Wide Area Networks (LPWANs) are wireless technologies with characteristics such as large coverage areas, low bandwidth, possibly very small packet and application-layer data sizes, and long battery life operation. This document does not provide functionality to manage the lower layers of the LPWANs.
This part of the DLMS®/COSEM suite specifies the communication profile for Low-Power Wide Area Networks (LPWANs).
The DLMS®/COSEM LPWAN communication profiles use connection-less transport layer based on the Internet Standard User Datagram Protocol (UDP) and Internet Protocol (IPv6).
The adaptation layer is based on IETF RFC 8724 which provides both a header compression/decompression mechanism and an optional fragmentation/reassembly mechanism. SCHC compression is based on static context with small context identifier to represent full IPv6/UDP/COSEM wrapper headers. If required, SCHC fragmentation is used to support IPv6 MTU over the LPWAN technologies.
This document follows the rules defined in IEC 62056-5-3:2023, Annex A, and in IEC 62056-1-0, and IEC TS 62056-1-1:2016 for its structure. See also Annex A for examples

Échange des données de comptage de l’électricité – La suite DLMS<em>®</em>/COSEM - Partie 8-12: Profil de communication pour réseaux étendus à basse consommation (LPWAN)

IEC 62056-8-12:2023 décrit l’utilisation de la suite DLMS®/COSEM pour les réseaux étendus à basse consommation (LPWAN). Il spécifie la manière dont le modèle de données COSEM et la couche application DLMS®/COSEM peuvent être utilisés avec plusieurs technologies LPWAN avec une couche adaptation fondée sur l’IETF RFC 8724, et en particulier avec un LoRaWAN (Long Range Wide Area Network).
Ce profil est destiné à être utilisé avec des LPWAN comme cela est défini dans l’IETF RFC 8724, et en particulier avec un LoRaWAN. Les réseaux étendus à basse consommation (LPWAN) sont des technologies sans fil caractérisées par des zones de couverture larges, une bande passante faible, éventuellement, des tailles de données de paquet et de couche application très réduites et par une longue durée de fonctionnement des batteries. Le présent document ne fournit pas de fonctionnalité destinée à gérer les couches inférieures des LPWAN.
La présente partie de la suite DLMS®/COSEM spécifie le profil de communication pour réseaux étendus à basse consommation (LPWAN).
Les profils de communication LPWAN DLMS®/COSEM utilisent une couche transport sans connexion fondée sur le protocole de datagramme utilisateur normalisé Internet (UDP) et le protocole Internet (IPv6).
La couche adaptation est fondée sur l’IETF RFC 8724 qui fournit un mécanisme de compression/décompression de l’en-tête et un mécanisme de fragmentation/réassemblage facultatif. La compression et fragmentation d’en-tête de contexte statique (SCHC) est fondée sur le contexte statique dans lequel un petit identifiant de contexte représente entièrement des en-têtes d’enveloppes d’IPv6/UDP/COSEM. Si cela est exigé, la fragmentation SCHC est utilisée pour prendre en charge la MTU IPv6 dans les technologies LPWAN.
Le présent document suit les règles définies dans l’IEC 62056-5-3:2023, Annexe A, et dans l’IEC 62056-1-0 ainsi que dans l’IEC TS 62056-1-1:2016 pour sa structure. Vois aussi l'Annexe A pour des exemples.

General Information

• Status: Published
• Publication Date: 26-Sep-2023
• ICS: 35.110 - Networking
• Technical Committee: TC 13 - Electrical energy measurement and control
• Drafting Committee: WG 14 - TC 13/WG 14
• Current Stage: PPUB - Publication issued
• Start Date: 01-Nov-2023
• Completion Date: 27-Sep-2023

Standards Content (Sample)

IEC 62056-8-12 ®
Edition 1.0 2023-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS®/COSEM suite –
Part 8-12: Communication profile for Low-Power Wide Area Networks (LPWANs)

Échange des données de comptage de l’électricité – La suite DLMS®/COSEM –
Partie 8-12: Profil de communication pour réseaux étendus à basse
consommation (LPWAN)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC -  IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur les adapté à vos besoins.
projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 300 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 19 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 62056-8-12 ®
Edition 1.0 2023-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS®/COSEM suite –

Part 8-12: Communication profile for Low-Power Wide Area Networks (LPWANs)

Échange des données de comptage de l’électricité – La suite DLMS®/COSEM –

Partie 8-12: Profil de communication pour réseaux étendus à basse

consommation (LPWAN)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.110  ISBN 978-2-8322-7574-0

– 2 – IEC 62056-8-12:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 7
4 Targeted communication environments . 8
4.1 General . 8
4.1.1 Overview . 8
4.1.2 Security . 9
4.2 Use of the communications layers for this profile . 9
4.2.1 Information related to the use of the standard specifying the lower
layers (IEC TS 62056-1-1:2016, 5.1) . 9
4.2.2 Structure of the communication profiles (IEC TS 62056-1-1:2016, 5.2) . 9
4.2.3 Lower protocol layers and their use (IEC TS 62056-1-1:2016, 5.3) . 10
4.2.4 Service mapping and adaptation layers (IEC TS 62056-1-1:2016, 5.4) . 11
4.2.5 Registration and connection management (IEC TS 62056-1-1:2016, 5.5) . 11
4.3 Identification and addressing schemes (IEC TS 62056-1-1:2016, Clause 6) . 11
4.4 Specific considerations for the application layer service (IEC TS 62056-1-
1:2016, Clause 7) . 11
4.4.1 Overview (IEC TS 62056-1-1:2016, 7.1) . 11
4.4.2 Application Association establishment and release: ACSE services
(IEC TS 62056-1-1:2016, 7.2) . 12
4.4.3 xDLMS services (IEC TS 62056-1-1:2016, 7.3) . 12
4.4.4 Security mechanisms (IEC TS 62056-1-1:2016, 7.4) . 12
4.4.5 Transferring long application messages (IEC TS 62056-1-1:2016, 7.5) . 12
4.4.6 Media access, bandwidth and timing consideration (IEC TS 62056-1-
1:2016, 7.6) . 12
4.5 Communication configuration and management (IEC TS 62056-1-1:2016,
Clause 8) . 12
4.6 The COSEM application process (IEC TS 62056-1-1:2016, Clause 9) . 12
Annex A (informative) Examples . 13
A.1 Example 1: DLMS®/COSEM GET Service transported through LPWAN using
LoRaWAN technology . 13
A.2 Example 2: DLMS®/COSEM DataNotification Service transported through
LPWAN with SCHC fragments . 15
A.3 Example 3: DLMS®/COSEM Access Service transported through LPWAN
with SCHC fragments . 22
Bibliography . 30

Figure 1 – Communication architecture . 8
Figure 2 – LPWAN (SCHC) architecture outline . 9
Figure 3 – DLMS®/COSEM LPWAN communication profile . 10
Figure A.1 – The DLMS®/COSEM GET Service on LPWAN . 15

Table 1 – Client and server SAPs . 11
Table A.1 – Get Service example . 13
Table A.2 – Data-Notification Service with Profile Generic . 16
Table A.3 – Example – Access Service . 22

– 4 – IEC 62056-8-12:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICITY METERING DATA EXCHANGE –
THE DLMS®/COSEM SUITE –
Part 8-12: Communication profile for
Low-Power Wide Area Networks (LPWANs)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent right
...