EN 62056-6-2:2013

Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes

IEC 62056-6-2:2013 specifies a model of a meter as it is seen through its communication interface(s). Generic building blocks are defined using object-oriented methods, in the form of interface classes to model meters from simple up to very complex functionality.

Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 6-2: Interface-Klassen

Echange des données de comptage de l'électricité – La suite DLMS/COSEM - Partie 6-2: Classes d'interface COSEM (CEI 62056-6-2 :2013)

La CEI 62056-6-2:2013 spécifie un modèle d'un compteur tel qu'il est vu à travers son/ses interface(s) de communication. Des blocs génériques de base sont définis à l'aide de méthodes orientées objet, sous la forme de classes d'interfaces pour modéliser les compteurs à partir d'une fonctionnalité simple jusqu'à une fonctionnalité très complexe.

Izmenjava podatkov meritev električne energije - Niz DLMS/COSEM - 6-2. del: Vmesniški razredi COSEM (IEC 62056-6-2:2013)

Ta del standarda IEC 62056 določa model števca, kot je videti prek komunikacijskega vmesnika. Splošni gradniki so določeni z metodami, ki so usmerjene v predmete, in sicer v obliki razredov vmesnikov za modele števcev od preprostih do zapletenih funkcij.

General Information

• Status: Withdrawn
• Publication Date: 22-Aug-2013
• Withdrawal Date: 03-Jul-2016
• ICS: 17.220 - Electricity. Magnetism. Electrical and magnetic measurements
• ICS: 35.110 - Networking
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: CLC/TC 13 - Equipment for electrical energy measurement and load control
• Drafting Committee: IEC/TC 13 - IEC_TC_13
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 09-Dec-2019
• Completion Date: 09-Dec-2019
• Mandate: M/441 - Standardisation mandate to CEN, CENELEC and ETSI in the field of measuring instruments for the development of an open architecture for utility meters involving communication protocols enabling interoperability
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 62056-6-2:2013 - Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes (IEC 62056-6-2:2013)

Relations

• Replaces: EN 62056-62:2007 - Electricity metering - Data exchange for meter reading, tariff and load control - Part 62: Interface classes
• Effective Date: 29-Jan-2023
• Replaced By: EN 62056-6-2:2016 - Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2013
1DGRPHãþD
SIST EN 62056-62:2007
,]PHQMDYDSRGDWNRYPHULWHYHOHNWULþQHHQHUJLMH1L]'/06&26(0GHO
9PHVQLãNLUD]UHGL&26(0,(&
Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM
interface classes (IEC 62056-6-2:2013)
Datenkommunikation der elektrischen Energiemesseung - DLMS/COSEM - Teil 6-2:
Interface-Klassen (IEC 62056-6-2:2013)
Echange de données pour le comptage de l'énergie électrique - La suite DLMS/COSEM
- Partie 6-2: Classes d'interfaces COSEM (CEI 62056-6-2:2013)
Ta slovenski standard je istoveten z: EN 62056-6-2:2013
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62056-6-2
NORME EUROPÉENNE
August 2013
EUROPÄISCHE NORM
ICS 17.220; 35.110; 91.140.50 Supersedes EN 62056-62:2007

English version
Electricity metering data exchange -
The DLMS/COSEM suite -
Part 6-2: COSEM interface classes
(IEC 62056-6-2:2013)
Echange de données dans les Datenkommunikation der elektrischen
équipements de comptage de l'énergie Energiemesseung -
électrique - DLMS/COSEM -
La suite DLMS/COSEM - Teil 6-2: Interface-Klassen
Partie 6-2: Classes d'interfaces COSEM (IEC 62056-6-2:2013)
(CEI 62056-6-2:2013)
This European Standard was approved by CENELEC on 2013-07-04. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62056-6-2:2013 E
Foreword
The text of document 13/1525/FDIS, future edition 1 of IEC 62056-6-2, prepared by IEC/TC 13 "Electrical
energy measurement, tariff- and load control" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 62056-6-2:2013.
The following dates are fixed:
• latest date by which the document has
(dop) 2014-04-04
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national
(dow) 2016-07-04
standards conflicting with the

document have to be withdrawn
revision.
The significant technical changes with respect to EN 62056-62 are listed in Annex A.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 62056-6-2:2013 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 standards indicated:
IEC 61334-6:2000 NOTE  Harmonized as EN 61334-6:2000 (not modified).
IEC 62053-23:2003 NOTE  Harmonized as EN 62053-23:2003 (not modified).
IEC 62056-8-3:2013 NOTE  Harmonized as EN 62056-8-3:2013 (not modified).

- 3 - EN 62056-6-2:2013
Annex ZA
(normative)
Normative references to i nternational publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61334-4-32 1996 Distribution automation using distribution line EN 61334-4-32 1996
carrier systems -
Part 4: Data communication protocols -
Section 32: Data link layer - Logical link
control (LLC)
IEC 61334-4-41 1996 Distribution automation using distribution line EN 61334-4-41 1996
carrier systems -
Part 4: Data communication protocols -
Section 41: Application protocols - Distribution
line message specification
IEC 61334-4-511 2000 Distribution automation using distribution line EN 61334-4-511 2000
carrier systems -
Part 4-511: Data communication protocols -
Systems management - CIASE protocol

IEC 61334-4-512 2001 Distribution automation using distribution line EN 61334-4-512 2002
carrier systems -
Part 4-512: Data communication protocols -
System management using profile 61334-5-1 -
Management Information Base (MIB)

IEC 61334-5-1 2001 Distribution automation using distribution line EN 61334-5-1 2001
carrier systems -
Part 5-1: Lower layer profiles - The spread
frequency shift keying (S-FSK) profile

IEC/TR 62051 1999 Electricity metering - Glossary of terms - -

IEC/TR 62051-1 2004 Electricity metering - Data exchange for meter - -
+ corr. June 2005 reading, tariff and load control - Glossary of
terms -
Part 1: Terms related to data exchange with
metering equipment using DLMS/COSEM

1 2
IEC 62056-3-1 201X Electricity metering data exchange – The EN 62056-3-1 201X
DLMS/COSEM suite -
Part 3-1: Use of local area networks on
twisted pair with carrier signalling

IEC 62056-5-3 2013 Electricity metering data exchange - The EN 62056-5-3 2013
DLMS/COSEM suite -
Part 5-3: DLMS/COSEM application layer

To be published.
At draft stage.
IEC 62056-6-1 2013 Electricity metering data exchange - The EN 62056-6-1 2013
DLMS/COSEM suite -
Part 6-1: COSEM Object Identification System
(OBIS)
IEC 62056-21 2002 Electricity metering - Data exchange for meter EN 62056-21 2002
reading, tariff and load control -
Part 21: Direct local data exchange

IEC 62056-46 2002 Electricity metering - Data exchange for meter EN 62056-46 2002
+A1 2006 reading, tariff and load control -
Part 46: Data link layer using HDLC protocol

ISO/IEC 8802-2 1998 Information technology - Telecommunications - -
+ corr. October 2000 and information exchange between systems -
Local and metropolitan area networks -
Specific requirements -
Part 2: Logical link control
ISO/IEC/IEEE 60559 2011 Information technology - Microprocessor - -
Systems - Floating-Point arithmetic

EN 13757-2 2004 Communication systems for and remote - -
reading of meters -
Part 2: Physical and link layer

EN 13757-3 2004 Communication systems for and remote - -
reading of meters -
Part 3: Dedicated application layer

EN 13757-5 2008 Communication systems for meters and - -
remote reading of meters - Part 5: Wireless
relaying
ANSI 1997 Utility Industry End Device Data Tables - -
C12.19:1997/IEEE
IETF RFC 1332 1992 The PPP Internet Protocol Control Protocol - -
(IPCP)
IETF RFC 1570 1994 PPP LCP Extensions - -

IETF RFC 1661 1994 Point-to-Point Protocol (PPP) - -

IETF RFC 1662 1994 PPP in HDLC Framing - -

IETF RFC 1700 1994 Assigned Numbers request for comments - -
1700 (STD 2)
IETF RFC 2507 1999 IP Header Compression - -

IETF RFC 3241 2002 Robust Header Compression (ROHC) over - -
PPP
STD 0005 1981 Internet Protocol - -

STD 0051 1994 The Point-to-Point Protocol (PPP) - -

IEC 62056-6-2 ®
Edition 1.0 2013-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –

Part 6-2: COSEM interface classes

Échange de données dans les équipements de comptage de l'énergie

électrique – La suite DLMS/COSEM –

Partie 6-2: Classes d'interfaces COSEM

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 17.220; 35.110; 91.140.50 ISBN 978-2-83220-822-9

– 2 – 62056-6-2 © IEC:2013
CONTENTS
FOREWORD. 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Abbreviations . 12
4 Basic principles . 14
4.1 General . 14
4.2 Referencing methods . 15
4.3 Reserved base_names for special COSEM objects . 15
4.4 Class description notation . 15
4.5 Common data types . 18
4.6 Data formats . 19
4.6.1 Date and time formats . 19
4.6.2 Floating point number formats . 21
4.7 The COSEM server model . 23
4.8 The COSEM logical device . 24
4.8.1 General . 24
4.8.2 COSEM logical device name . 24
4.8.3 The “association view” of the logical device . 24
4.8.4 Mandatory contents of a COSEM logical device . 24
4.8.5 Management logical device . 25
4.9 Data security . 25
5 The COSEM interface classes . 25
5.1 Overview . 25
5.2 Interface classes for parameters and measurement data . 27
5.2.1 Data (class_id: 1, version: 0) . 27
5.2.2 Register (class_id: 3, version: 0) . 28
5.2.3 Extended register (class_id: 4, version: 0) . 32
5.2.4 Demand register (class_id: 5, version: 0) . 33
5.2.5 Register activation (class_id: 6, version: 0) . 36
5.2.6 Profile generic (class_id: 7, version: 1) . 38
5.2.7 Utility tables (class_id: 26, version: 0) . 43
5.2.8 Register table (class_id: 61, version: 0) . 44
5.2.9 Status mapping (class_id: 63, version: 0). 47
5.3 Interface classes for access control and management . 48
5.3.1 Association SN (class_id: 12, version: 2) . 48
5.3.2 Association LN (class_id: 15, version: 1) . 52
5.3.3 SAP assignment (class_id: 17, version: 0) . 58
5.3.4 Image transfer (class_id: 18, version: 0) . 59
5.3.5
...