IEC 62056-7-3:2017

Electricity metering data exchange - The DLMS/COSEM suite - Part 7-3: Wired and wireless M-Bus communication profiles for local and neighbourhood networks

IEC 62056-7-3:2017 specifies DLMS/COSEM wired and wireless M-Bus communication profiles for local and neighbourhood networks. It is restricted to aspects concerning the use of communication protocols in conjunction with the COSEM data model and the DLMS/COSEM application layer.

Échange des données de comptage de l'électricité – La suite DLMS/COSEM – Partie 7-3: Profils de communication M-Bus filaire et sans fil pour les réseaux locaux et les réseaux de voisinage

IEC 62056-7-3:2017 spécifie les profils de communication M-Bus DLMS/COSEM filaire et sans fil pour les réseaux locaux et de voisinage. Il se limite aux aspects relatifs à l'utilisation des protocoles de communication conjointement avec le modèle de données COSEM et la couche application DLMS/COSEM.

General Information

• Status: Published
• Publication Date: 06-Mar-2017
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 35.100.01 - Open systems interconnection in general
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: TC 13 - Electrical energy measurement and control
• Current Stage: PPUB - Publication issued
• Start Date: 10-Mar-2017
• Completion Date: 07-Mar-2017

Standards Content (Sample)

IEC 62056-7-3 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 7-3: Wired and wireless M-Bus communication profiles for local and
neighbourhood networks
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.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

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and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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IEC 62056-7-3 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –

Part 7-3: Wired and wireless M-Bus communication profiles for local and

neighbourhood networks
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20; 35.100.01; 91.140.50 ISBN 978-2-8322-4012-0

– 2 – IEC 62056-7-3:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions. 8
3.2 Abbreviated terms . 8
4 Targeted communication environments . 9
5 Use of the communication layers for this profile . 9
5.1 Information related to the use of the standard specifying the lower layers . 9
5.2 Structure of the communication profiles . 9
5.3 Lower protocol layers and their use . 10
5.3.1 Physical layer . 10
5.3.2 Link layer . 10
5.3.3 Transport layer . 11
5.4 Service mapping and adaptation layers . 11
5.4.1 Overview . 11
5.4.2 MBUS-DATA service primitives . 12
5.4.3 MBUS-DATA protocol specification . 14
5.5 Registration and connection management . 16
6 Identification and addressing scheme . 16
6.1 Overview . 16
6.2 Link Layer Address for wired M-Bus . 17
6.3 Link Layer Address for wireless M-Bus . 18
6.4 Link Layer Address for M-Bus broadcast . 18
6.5 Transport layer address . 19
6.6 Application addressing extension – M-Bus wrapper . 21
7 Specific considerations and constraints for using certain services within profile . 22
7.1 Overview . 22
7.2 Application association establishment and release: ACSE services . 22
7.3 xDLMS services . 23
7.3.1 Request – response type services . 23
7.3.2 Unsolicited services . 23
7.3.3 Broadcast messages . 23
7.4 Security mechanisms . 24
7.5 Transporting long application messages . 24
7.6 Media access, bandwidth and timing considerations . 24
8 Communication configuration and management . 24
Annex A (informative) M-Bus frame structures, addressing schemes and examples . 25
A.1 General . 25
A.2 None, short or long M-Bus data header . 26
A.2.1 Wired M-Bus . 26
A.2.2 Wireless M-Bus . 27
A.3 Encoding example: Data-Notification carrying daily billing data . 30
A.3.1 Overview . 30
A.3.2 Example: Daily billing data. 31

Annex B (normative)  New COSEM interface classes related to the M-Bus
communication profiles . 33
Annex C (informative) Message sequence charts . 34
Bibliography . 37

Figure 1 – Entities and interfaces of a smart metering system using the terminology of
IEC 62056-1-0 . 9
Figure 2 – The DLMS/COSEM wired and wireless M-Bus communication profiles . 10
Figure 3 – Summary of DLMS/COSEM M-Bus-based TL services . 12
Figure 4 – Identification and addressing scheme in the wired M-Bus profile . 17
Figure 5 – Link Layer Address for wireless M-Bus . 18
Figure 6 – M-Bus TPDU formats . 20
Figure 7 – CI without M-Bus data header . 20
TL
Figure A.1 – M-Bus communication paths direct or cascaded . 25
Figure A.2 – Wired M-Bus frame structure, none M-Bus data header . 27
Figure A.3 – Wired M-Bus frame structure with long M-Bus data header . 27
Figure A.4 – Wireless M-Bus frame structure with short ELL, no M-Bus data header . 29
Figure A.5 – Wireless M-Bus frame structure with long ELL, no M-Bus data header . 29
Figure A.6 – Wireless M-Bus frame structure with long ELL and long M-Bus data
header . 30
Figure A.7 – Daily billing data without / with DLMS/COSEM security applied . 32
Figure C.1 – MSC for the COSEM-OPEN service for wired M-Bus, no M-Bus header . 35
Figure C.2 – MSC the GET service for wired M-Bus, no M-Bus header . 36

Table 1 – Wired M-Bus Link Layer Addresses . 18
Table 2 – DLMS/COSEM M-Bus-based TL CI values . 19
TL
Table 3 – CI fields used for link management purposes . 21
Table 4 – Client and server SAPs . 21
Table 5 – Application associations and data exchange in the M-Bus-based profiles . 22
Table A.1 – Example: Daily billing data . 31

– 4 – IEC 62056-7-3:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –
Part 7-3: Wired and wireless M-Bus communication
profiles for local and neighbourhood networks

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IEC 62056-7-3 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 7-3: Wired and wireless M-Bus communication profiles for local and
neighbourhood networks
Echange des données de comptage de l’électricité – La suite DLMS/COSEM –
Partie 7-3: Profils de communication M-Bus filaire et sans fil pour les réseaux
locaux et les réseaux de voisinage
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
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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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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IEC 62056-7-3 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –

Part 7-3: Wired and wireless M-Bus communication profiles for local and

neighbourhood networks
Echange des données de comptage de l’électricité – La suite DLMS/COSEM –

Partie 7-3: Profils de communication M-Bus filaire et sans fil pour les réseaux

locaux et les réseaux de voisinage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 35.100.01; 91.140.50 ISBN 978-2-8322-5510-0

– 2 – IEC 62056-7-3:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions. 8
3.2 Abbreviated terms . 8
4 Targeted communication environments . 9
5 Use of the communication layers for this profile . 9
5.1 Information related to the use of the standard specifying the lower layers . 9
5.2 Structure of the communication profiles . 9
5.3 Lower protocol layers and their use . 10
5.3.1 Physical layer . 10
5.3.2 Link layer . 10
5.3.3 Transport layer . 11
5.4 Service mapping and adaptation layers . 11
5.4.1 Overview . 11
5.4.2 MBUS-DATA service primitives . 12
5.4.3 MBUS-DATA protocol specification . 14
5.5 Registration and connection management . 16
6 Identification and addressing scheme . 16
6.1 Overview . 16
6.2 Link Layer Address for wired M-Bus . 17
6.3 Link Layer Address for wireless M-Bus . 18
6.4 Link Layer Address for M-Bus broadcast . 18
6.5 Transport layer address . 19
6.6 Application addressing extension – M-Bus wrapper . 21
7 Specific considerations and constraints for using certain services within profile . 22
7.1 Overview . 22
7.2 Application association establishment and release: ACSE services . 22
7.3 xDLMS services . 23
7.3.1 Request – response type services . 23
7.3.2 Unsolicited services . 23
7.3.3 Broadcast messages . 23
7.4 Security mechanisms . 24
7.5 Transporting long application messages . 24
7.6 Media access, bandwidth and timing considerations . 24
8 Communication configuration and management . 25
Annex A (informative) M-Bus frame structures, addressing schemes and examples . 26
A.1 General . 26
A.2 None, short or long M-Bus data header . 27
A.2.1 Wired M-Bus . 27
A.2.2 Wireless M-Bus . 28
A.3 Encoding example: Data-Notification carrying daily billing data . 31
A.3.1 Overview . 31
A.3.2 Example: Daily billing data. 32

Annex B (normative)  New COSEM interface classes related to the M-Bus
communication profiles . 34
Annex C (informative) Message sequence charts . 35
Bibliography . 38

Figure 1 – Entities and interfaces of a smart metering system using the terminology of
IEC 62056-1-0 . 9
Figure 2 – The DLMS/COSEM wired and wireless M-Bus communication profiles . 10
Figure 3 – Summary of DLMS/COSEM M-Bus-based TL services . 12
Figure 4 – Identification and addressing scheme in the wired M-Bus profile . 17
Figure 5 – Link Layer Address for wireless M-Bus . 18
Figure 6 – M-Bus TPDU formats . 20
Figure 7 – CI without M-Bus data header . 20
TL
Figure A.1 – M-Bus communication paths direct or cascaded . 26
Figure A.2 – Wired M-Bus frame structure, none M-Bus data header . 28
Figure A.3 – Wired M-Bus frame structure with long M-Bus data header . 28
Figure A.4 – Wireless M-Bus frame structure with short ELL, no M-Bus data header . 30
Figure A.5 – Wireless M-Bus frame structure with long ELL, no M-Bus data header . 30
Figure A.6 – Wireless M-Bus frame structure with long ELL and long M-Bus data
header . 31
Figure A.7 – Daily billing data without / with DLMS/COSEM security applied . 33
Figure C.1 – MSC for the COSEM-OPEN service for wired M-Bus, no M-Bus header . 36
Figure C.2 – MSC the GET service for wired M-Bus, no M-Bus header .
...