SIST EN 62056-9-7:2014

Electricity metering data exchange - The DLMS/COSEM suite - Part 9-7: Communication profile for TCP-UDP/IP networks

This part of IEC 62056 specifies the DLMS/COSEM communication profile for TCP-UDP/IP networks.

Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 9-7: Festlegungen zur Nutzung bei TCP-UDP/IP-Netzen

Echange de données pour le comptage de l'énergie électrique - La suite DLMS/COSEM - Partie 9-7: Profil de communication pour réseaux TCP-UDP/IP

La CEI 62056-9-7:2013 spécifie le profil de communication DLMS/COSEM pour les réseaux TCP-UDP/IP (Protocole de contrôle de transmission - Protocole de datagramme utilisateur/Protocole Internet).

Izmenjava podatkov meritev električne energije - Niz DLMS/COSEM - 9-7. del: Komunikacijski profil za omrežja TCP-UDP/IP (IEC 62056-9-7:2013)

Ta del standarda IEC 62056 določa komunikacijski profil DLMS/COSEM za omrežja TCP-UDP/IP.

General Information

• Status: Published
• Publication Date: 20-May-2014
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 35.100.05 - Multilayer applications
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: MEE - Equipment for electrical energy measurement and load control
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 15-May-2014
• Due Date: 20-Jul-2014
• Completion Date: 21-May-2014
• Ref Project: EN 62056-9-7:2013 - Electricity metering data exchange - The DLMS/COSEM suite - Part 9-7: Communication profile for TCP-UDP/IP networks

Relations

• Replaces: SIST EN 62056-53:2007 - Electricity metering - Data exchange for meter reading, tariff and load control -- Part 53: COSEM application layer
• Effective Date: 29-Jan-2023
• Revised: SIST EN 62056-53:2007 - Electricity metering - Data exchange for meter reading, tariff and load control -- Part 53: COSEM application layer
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62056-9-7:2014
01-junij-2014
,]PHQMDYDSRGDWNRYPHULWHYHOHNWULþQHHQHUJLMH1L]'/06&26(0GHO
.RPXQLNDFLMVNLSURILO]DRPUHåMD7&38'3,3,(&
Electricity metering data exchange - The DLMS/COSEM suite - Part 9-7: Communication
profile for TCP-UDP/IP networks
Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 9-7:
Festlegungen zur Nutzung bei TCP-UDP/IP-Netzen
Echange de données pour le comptage de l'énergie électrique - La suite DLMS/COSEM
- Partie 9-7: Profil de communication pour réseaux TCP-UDP/IP
Ta slovenski standard je istoveten z: EN 62056-9-7:2013
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST EN 62056-9-7:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62056-9-7:2014

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SIST EN 62056-9-7:2014

EUROPEAN STANDARD
EN 62056-9-7

NORME EUROPÉENNE
October 2013
EUROPÄISCHE NORM

ICS 17.220; 35.110; 91.140.50 Supersedes EN 62056-53:2007 (partially)


English version


Electricity metering data exchange -
The DLMS/COSEM suite -
Part 9-7: Communication profile for TCP-UDP/IP networks
(IEC 62056-9-7:2013)


Échange des données de comptage de Datenkommunikation der elektrischen
l'électricité - Energiemessung - DLMS/COSEM -
La suite DLMS/COSEM - Teil 9-7: Festlegungen zur Nutzung von
Partie 9-7: Profil de communication pour TCP-UDP/IP-Netzen
réseaux TCP-UDP/IP (IEC 62056-9-7:2013)
(CEI 62056-9-7:2013)



This European Standard was approved by CENELEC on 2013-05-28. 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 62056-9-7:2013 E

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SIST EN 62056-9-7:2014
EN 62056-9-7:2013 - 2 -

Foreword
The text of document 13/1520/FDIS, future edition 1 of IEC 62056-9-7, 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 62056-9-7:2013.
The following dates are fixed:
(dop) 2014-04-04
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-05-28
• latest date by which the national

standards conflicting with the
document have to be withdrawn

This document supersedes EN 62056-53:2007 (PART).
EN 62056-9-7:2013 includes the following significant technical changes with respect to EN 62056-
53:2007:
Note: Whereas IEC 62056-53 Ed. 2.0 contains the specification of the DLMS/COSEM communication profiles, IEC
62056-5-3 Ed.1.0 replacing the earlier edition does not.

• The title of the standard has been aligned with the title of other parts of the revised IEC 62056
series;

• Clause 4, Targeted communication environments has been extended, a functional reference
architecture figure has been added;

• Clause 5, The structure of the profile(s) has been extended, the Figure has been generalized and
simplified;

• In clause 6, Identification and addressing scheme, the port number assigned by the IANA for
DLMS/COSEM has been added;

• In subclause 9.1, Two paragraphs specifying how confirmed and unconfirmed COSEM-OPEN
and xDLMS service invocations have been added;

• Subclause 9.6, Transporting long messages, has been amended. It specifies now that for
transporting long messages, application layer block transfer can be used (also available now with
SN referencing);

• The clause on Multi-drop configurations has been removed.

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 62056-9-7:2013 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:

1)
IEC 62056-6-1 NOTE Harmonised as EN 62056-6-1 (not modified).
1)
IEC 62056-6-2 NOTE Harmonised as EN 62056-6-2 (not modified).

1)
at draft stage.

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SIST EN 62056-9-7:2014
- 3 - EN 62056-9-7:2013
Annex ZA
(normative)

Normative references to international 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

2) 2)
IEC 62056-5-3 - Electricity metering data exchange - The EN 62056-5-3 -
DLMS/COSEM suite -
Part 5-3: DLMS/COSEM application layer


IEC 62056-47 2006 Electricity metering - Data exchange for EN 62056-47 2007
meter reading, tariff and load control -
Part 47: COSEM transport layers for IPv4
networks



2)
At draft stage.

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SIST EN 62056-9-7:2014

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SIST EN 62056-9-7:2014




IEC 62056-9-7

®


Edition 1.0 2013-04




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Electricity metering data exchange – The DLMS/COSEM suite –

Part 9-7: Communication profile for TCP-UDP/IP networks




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

Partie 9-7: Profil de communication pour réseaux TCP-UDP/IP
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX Q


ICS 17.220; 35.110; 91.140.50 ISBN 978-2-83220-748-2



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 62056-9-7:2014
– 2 – 62056-9-7 © IEC:2013
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 5
4 Targeted communication environments . 6
5 Structure of the profile(s) . 7
6 Identification and addressing scheme . 8
7 Supporting layer services and service mapping . 10
8 Communication profile specific service parameters of the COSEM AL services . 11
9 Specific considerations / constraints . 12
9.1 Confirmed and unconfirmed AAs and service invocations, packet types used . 12
9.2 Releasing application associations: using RLRQ/RLRE is mandatory . 13
9.3 Service parameters of the COSEM-OPEN / -RELEASE / -ABORT services. 13
9.4 xDLMS client/server type services . 13
9.5 EventNotification Service and TriggerEventNotificationSending service . 13
9.6 Transporting long messages . 13
9.7 Allowing COSEM servers to establish the TCP connection . 14
9.8 The COSEM TCP-UDP/IP profile and real-world IP networks . 14
Bibliography . 15
Index . 17

Figure 1 – Communication architecture . 7
Figure 2 – Examples for lower-layer protocols in the TCP-UDP/IP based profile(s) . 8
Figure 3 – Identification / addressing scheme in the TCP-UDP/IP based profile(s) . 10
Figure 4 – Summary of TCP / UDP layer services . 11

Table 1 – Application associations and data exchange in the TCP-UDP/IP based
profile . 12

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SIST EN 62056-9-7:2014
62056-9-7 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –

Part 9-7: Communication profile for TCP-UDP/IP networks

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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance
with this International Standard may involve the use of a maintenance service concerning the stack of protocols on
which the present standard IEC 62056-9-7 is based.
The IEC takes no position concerning the evidence, validity and scope of this maintenance service.
The provider of the maintenance service has assured the IEC that he is willing to provide services under
reasonable and non-discriminatory terms and conditions for applicants throughout the world. In this respect, the
statement of the provider of the maintenance service is registered with the IEC. Information may be obtained from:
1
DLMS User Association
Zug/Switzerland
www.dlms.ch
—————————
1
 Device Language Message Specification.

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SIST EN 62056-9-7:2014
– 4 – 62056-9-7 © IEC:2013
International Standard IEC 62056-9-7 has been prepared by IEC technical committee 13:
Electrical energy measurement, tariff- and load control.
It is based on IEC 62056-53 Ed.2:2006, Electricity metering – Data exchange for meter
reading, tariff and load control – Part 53: COSEM application layer, Annex B.3, The TCP-
UDP/IP based communication profiles (COSEM_on_IP) and introduces the following
significant technical changes:
NOTE Whereas IEC 62056-53 Ed. 2.0 contains the specification of the DLMS/COSEM communication profiles,
IEC 62056-5-3 Ed.1.0 replacing the earlier edition does not.
• The title of the standard has been aligned with the title of other parts of the revised
IEC 62056 series;
• Clause 4, Targeted communication environments has been extended, a functional
reference architecture figure has been added;
• Clause 5, The structure of the profile(s) has been extended, the Figure has been
generalized and simplified;
• In clause 6, Identification and addressing scheme, the port number assigned by the IANA
for DLMS/COSEM has been added;
• In subclause 9.1, two paragraphs specifying how confirmed and unconfirmed COSEM-
OPEN and xDLMS service invocations have been added;
• Subclause 9.6, Transporting long messages, has been amended. It specifies now that for
transporting long messages, application layer block transfer can be used (also available
now with SN referencing);
• The clause on Multi-drop configurations has been removed.
The text of this standard is based on the following documents:
FDIS Report on voting
13/1520/FDIS 13/1537/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
A list of all parts of IEC 62056, under the general title Electricity metering data exchange –
The DLMS/COSEM suite, can be found on the IEC website.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

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SIST EN 62056-9-7:2014
62056-9-7 © IEC:2013 – 5 –
ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –

Part 9-7: Communication profile for TCP-UDP/IP networks



1 Scope
This part of IEC 62056 specifies the DLMS/COSEM communication profile for TCP-UDP/IP
networks.
2 Normative references
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.
IEC 62056-47:2006, Electricity metering – Data exchange for meter reading, tariff and load
control – Part 47: COSEM transport layer for IPv4 networks
IEC 62056-5-3:2013, Electricity metering data exchange – The DLMS/COSEM suite –
Part 5-3: DLMS/COSEM application layer
NOTE See also the Bibliography.
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.
3.1 Terms and definitions
3.1.1
client
a station, asking for services. Normally the master station
3.1.2
server
a station, delivering services. The tariff device (meter) is normally the server, delivering the
requested values or executing the requested tasks
3.2 Abbreviations

Application Association
AA
AARE A-Associate Response – an APDU of the ACSE
AARQ A-Associate Request – an APDU of the ACSE
ACSE Association Control Service Element
AL Application Layer
AP Application Process
APDU Application Layer Protocol Data Unit

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SIST EN 62056-9-7:2014
– 6 – 62056-9-7 © IEC:2013
ARP Address Resolution Protocol
ASE Application Service Element
ATM Asynchronous Transfer Mode

COSEM Companion Specification for Energy Metering
DLMS Device Language Message Specification
FDDI Fiber Distributed Data Interface
HDLC High-level Data Link Control
HTTP Hypertext Transfer Protocol
IEEE Institute of Electrical and Electronics Engineers
ISO International Organization for Standardization
IP Internet Protocol
LN Local Network
NN Neighbourhood Network
OSI Open System Interconnection
PDU Protocol Data Unit
PhL Physical Layer
PPP Point-to-Point Protocol
RLRE A-Release Response – an APDU of the ACSE
RLRQ A-Release Request – an APDU of the ACSE
SAP Service Access Point

TCP Transmission Control Protocol
TL Transport Layer
UDP User Datagram Protocol
WAN Wide Area Network
xDLMS Extended DLMS
4 Targeted communication environments
The TCP-UDP/IP based communication profiles are suitable for remote data exchange with
metering equipment via IP enabled networks such as wide area networks, neighbourhood
networks or local networks. This is shown in Figure 1.

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SIST EN 62056-9-7:2014
62056-9-7 © IEC:2013 – 7 –

Electricity metering end device
Meter application functions
I
Meter communication functions
G C M
Internet enabled
Neighbourhood
Network
L
Internet enabled
Local Network

Local Network Access Point (LNAP)
G C
N
Internet enabled
Neighbourhood
Network
Neigbourhood Network Access Point (NNAP)
G
Internet enabled WAN
AMI head end system
IEC  688/13

Figure 1 – Communication architecture
5 Structure of the profile(s)
The COSEM TCP-UDP/IP based communication profiles consist of five protocol la
...