EN 62056-7-5:2016

Electricity metering data exchange - The DLMS/COSEM suite - Part 7-5: Local data transmission profiles for Local Networks (LN)

IEC 62056-7-5:2016 specifies DLMS/COSEM communication profiles for transmitting metering data modelled by COSEM interface objects through a Local Data Transmission Interface (LDTI). The LDTI may be part of a meter or of a Local Network Access Point (LNAP) hosting a DLMS/COSEM server.

Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 7-5: Kommunikationsprofile zur lokalen Datenübertragung für lokale Netze

Échange des données de comptage de l'électricité - la suite DLMS/COSEM - partie 7-5: Profils de transmission de données locales pour réseaux locaux (LN)

L'IEC 62056-7-5:2016 spécifie les profils de communication DLMS/COSEM pour la transmission des données de comptage modélisées par les objets d'interface COSEM par l'intermédiaire d'une interface de transmission de données locales (LDTI). La LDTI peut faire partie d'un compteur ou d'un point d'accès au réseau local (LNAP) hébergeant un serveur DLMS/COSEM.

Izmenjava podatkov pri merjenju električne energije - Niz DLMS/COSEM - 7-5. del: Profili izmenjave podatkov za lokalne mreže (LN)

Ta del standarda IEC 62056 določa komunikacijske profile DLMS/COSEM za izmenjevanje merilnih podatkov, modeliranih z vmesniškimi objekti COSEM prek vmesnika za izmenjavo podatkov lokalne mreže (LDTI). Vmesnik za izmenjavo podatkov lokalne mreže je lahko del števca ali dostopne točke lokalne mreže (LNAP), v kateri gostuje strežnik DLMS/COSEM.
Glavno besedilo tega standarda določa skupne vidike različnih komunikacijskih profilov za vmesnik za izmenjavo podatkov lokalne mreže.
Dodatki določajo elemente, ki so značilni za komunikacijske protokole. Dodatki so sestavni del tega mednarodnega standarda.
Dodatek A (normativni) določa komunikacijski profil s protokolom, določenim v standardu IEC 62056-21. Točka A.1 določa komunikacijski profil, ki podpira aplikacijsko plast DLMS/COSEM, točka A.2 pa določa komunikacijski profil s podedovanim načinom D. Fizični vmesnik je optični vmesnik, določen v standardu IEC 62056-21:2002, 4.3.
Dodatek B (normativni) določa komunikacijski profil s protokolom, določenim v standardu IEC 62056-3-1. Točka B.1 določa komunikacijski profil, ki podpira aplikacijsko plast DLMS/COSEM, točka B.2 pa določa komunikacijski profil s podedovanim načinom. Fizični vmesnik je sukana parica s signalizacijo po nosilcu in je poznan kot vodilo Euridis.
Dodatek C (normativni) določa komunikacijski profil na podlagi profila, določenega v standardu IEC 62056-7-6, ki temelji na 3-plastnem, povezovalno naravnanem profilu DLMS/COSEM na osnovi HDLC. Fizični vmesnik je RS 485 ali TIA-232-F.
Dodatek D (normativni) določa komunikacijski profil s fizično plastjo, določeno v standardu EN 13757-2, in podatkovno povezovalno plastjo na podlagi HDLC, določeno v standardu IEC 62056-46. Fizični vmesnik je sukana parica s signalizacijo v osnovnem pasu.
Dodatek E (normativni) določa komunikacijski profil s protokolom UDP/IP. Fizična plast ne spada na področje uporabe tega mednarodnega standarda.
Komunikacijski profili iz točk A.1 in B.1 ter dodatkov C, D in E podpirajo aplikacijsko plast DLMS/COSEM.
Dodatek F (informativni) določa primer konfiguracije vmesnika za izmenjavo podatkov lokalne mreže.
Dodatek G (informativni) navaja primere kodiranja.
Dodatni komunikacijski profili za druge medijske/komunikacijske protokole se lahko dodajo
v prihodnosti. Področje uporabe teh komunikacijskih profilov je omejeno na vidike v zvezi z uporabo
komunikacijskih protokolov skupaj s podatkovnimi modeli DLMS/COSEM. Podatkovne strukture, značilne za določen komunikacijski protokol, naj bi bile opredeljene v posebnih standardih glede protokolov. Morebitne definicije podatkovnih struktur in vsebine podatkov za posamezen projekt morajo biti vključene v spremljevalnih specifikacijah za posamezen projekt.

General Information

• Status: Published
• Publication Date: 08-Dec-2016
• Withdrawal Date: 08-Dec-2019
• 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: CLC/TC 13 - Equipment for electrical energy measurement and load control
• Drafting Committee: IEC/TC 13 - IEC_TC_13
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 09-Dec-2016
• Completion Date: 09-Dec-2016
• Mandate: M/411 - Standardisation mandate to CEN to amend the standard EN 71-1:2005; clause 5.12 on object intended for drinking
• Ref Project: SIST EN 62056-7-5:2017 - Electricity metering data exchange - The dlms/cosem suite - Part 7-5: Local data transmission profiles for Local Networks (LN)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62056-7-5:2017
01-februar-2017
,]PHQMDYDSRGDWNRYSULPHUMHQMXHOHNWULþQHHQHUJLMH1L]'/06&26(0GHO
3URILOLL]PHQMDYHSRGDWNRY]DORNDOQHPUHåH/1
Electricity metering data exchange - The dlms/cosem suite - Part 7-5: Local data
transmission profiles for Local Networks (LN)

Échange des données de comptage de l'électricité - la suite dlms/cosem - partie 7-5:

Profils de transmission de données locales pour réseaux locaux (LN)
Ta slovenski standard je istoveten z: EN 62056-7-5:2016
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 62056-7-5:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62056-7-5:2017
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SIST EN 62056-7-5:2017
EUROPEAN STANDARD EN 62056-7-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2016
ICS 17.220.20; 35.100.01; 91.140.50
English Version
Electricity metering data exchange - The DLMS/COSEM suite -
Part 7-5: Local data transmission profiles for Local Networks
(LN)
(IEC 62056-7-5:2016)

Échange des données de comptage de l'électricité - la suite Datenkommunikation der elektrischen Energiemessung -

DLMS/COSEM - partie 7-5: Profils de transmission de DLMS/COSEM - Teil 7-5: Kommunikationsprofile zur

données locales pour réseaux locaux (LN) lokalen Datenübertragung für lokale Netze

(IEC 62056-7-5:2016) (IEC 62056-7-5:2016)

This European Standard was approved by CENELEC on 2016-06-16. 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, 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.
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

© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62056-7-5:2016 E
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SIST EN 62056-7-5:2017
EN 62056-7-5:2016
European foreword

The text of document 13/1605/CDV, future edition 1 of IEC 62056-7-5, 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 62056-7-5:2016.
The following dates are fixed:
(dop) 2017-06-09
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-12-09
• latest date by which the national
standards conflicting with the
document have to be withdrawn

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 62056-7-5:2016 was approved by CENELEC as a

European Standard without any modification.
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SIST EN 62056-7-5:2017
EN 62056-7-5:2015
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 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-300 - International Electrotechnical Vocabulary - - -
Electrical and electronic measurements
and measuring instruments -- Part 311:
General terms relating to measurements --
Part 312: General terms relating to
electrical measurements -- Part 313: Types
of electrical measuring instruments -- Part
314: Specific terms according to the type of
instrument

IEC 60950-1 (mod) 2005 Information technology equipment - Safety EN 60950-1 2006

- Part 1: General requirements
- - + A11 2009
+ A1 (mod) 2009 + A1 2010
- - + A12 2011
- - + AC 2011
+ A2 (mod) 2013 + A2 2013
IEC 62052-31 - Electricity metering equipment (AC) - EN 62052-31 -
General requirements, tests and test
conditions - Part 31: Product safety
requirements and tests
IEC 62056-1-0 - Electricity metering data exchange - The EN 62056-1-0 -
DLMS/COSEM suite - Part 1-0: Smart
metering standardisation framework
IEC 62056-3-1 2013 Electricity metering data exchange - The EN 62056-3-1 2014
DLMS/COSEM suite -- Part 3-1: Use of
local area networks on twisted pair with
carrier signalling
IEC 62056-4-7 2015 Electricity metering data exchange - The EN 62056-4-7 2015
DLMS/COSEM suite -- Part 4-7:
DLMS/COSEM transport layer for IP
networks
IEC 62056-5-3 2016 EN 62056-5-3 2016
IEC 62056-6-1 2015 Electricity metering data exchange - The EN 62056-6-1 2016
DLMS/COSEM suite - Part 6-1: Object
Identification System (OBIS)
IEC 62056-6-2 2016 Electricity metering data exchange - The EN 62056-6-2 2016
DLMS/COSEM suite - Part 6-2: COSEM
interface classes
IEC 62056-9-7 - Electricity metering data exchange - The EN 62056-9-7 -
DLMS/COSEM suite -- Part 9-7:
Communication profile for TCP-UDP/IP
networks
IEC 62056-21 2002 Electricity metering - Data exchange for EN 62056-21 2002
meter reading, tariff and load control -- Part
21: Direct local data exchange
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SIST EN 62056-7-5:2017
EN 62056-7-5:2016
IEC 62056-46 2002 Electricity metering - Data exchange for EN 62056-46 2002
meter reading, tariff and load control -- Part
46: Data link layer using HDLC protocol
+ A1 2006 + A1 2007
IEC/TR 62051 - Electricity metering - Glossary of terms - -
IEC/TR 62051-1 - Electricity metering - Data exchange for - -
meter reading, tariff and load control -
Glossary of terms - Part 1: Terms related
to data exchange with metering equipment
using DLMS/COSEM
ISO/IEC 13239 2002 Information technology - - -
Telecommunications and information
exchange between systems - High-level
data link control (HDLC) procedures
- Communication systems for and remote EN 13757-2 -
reading of meters - Part 2: Physical and
link layer
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SIST EN 62056-7-5:2017
IEC 62056-7-5
Edition 1.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 7-5: Local data transmission profiles for Local Networks (LN)
Échange des données de comptage de l'électricité – La suite DLMS/COSEM –
Partie 7-5: Profils de transmission de données locales pour réseaux locaux (LN)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 35.100.01; 91.140.50 ISBN 978-2-8322-3326-9

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 62056-7-5:2017
– 2 – IEC 62056-7-5:2016  IEC 2016
CONTENTS

FOREWORD......................................................................................................................... 5

INTRODUCTION ................................................................................................................... 7

1 Scope ............................................................................................................................ 8

2 Normative references .................................................................................................. 10

3 Terms, definitions and abbreviations ............................................................................ 11

3.1 Terms and definitions .......................................................................................... 11

3.2 Abbreviations ...................................................................................................... 11

4 Targeted communication environments ........................................................................ 11

5 Use of the communication layers for these profiles ....................................................... 12

5.1 Information related to the use of the standards specifying the lower layers ........... 12

5.2 Structure of the profile ......................................................................................... 12

5.3 Use of the lower layers ........................................................................................ 13

5.3.1 Overview ..................................................................................................... 13

5.3.2 Physical layer .............................................................................................. 14

5.3.3 MAC layer .................................................................................................... 14

5.3.4 Data link layer .............................................................................................. 14

5.4 Service mapping and adaptation layers ................................................................ 14

5.4.1 For the default HDLC based data link layer ................................................... 14

5.4.2 For other lower layers .................................................................................. 15

5.5 Registration and connection management ............................................................ 15

6 Identification and addressing scheme ........................................................................... 15

6.1 General identification and addressing scheme ..................................................... 15

6.2 Addressing for the default HDLC based data link layer ......................................... 15

6.3 Addressing for other data link layers .................................................................... 15

7 Specific considerations for the application layer services .............................................. 15

7.1 Overview ............................................................................................................ 15

7.2 Application Association establishment and release: ACSE services ...................... 15

7.3 xDLMS services .................................................................................................. 15

7.4 Security mechanisms .......................................................................................... 16

7.5 Transferring long application messages ............................................................... 16

7.6 Media access, bandwidth and timing considerations ............................................. 16

8 Communication layer configuration and management ................................................... 17

9 The COSEM application process (AP) .......................................................................... 17

9.1 Model and services ............................................................................................. 17

9.2 COSEM interface classes (IEC 62056-6-2) to configure the LDTI ......................... 18

9.3 Security environment (not valid for legacy mode) ................................................. 19

9.4 Restrictions for interfaces supporting “Legacy operating modes” .......................... 20

10 Additional considerations for the use of this profile – Safety ......................................... 21

Annex A (normative) Media specific profile: Optical interface .............................................. 22

A.1 IEC 62056-21 port ............................................................................................... 22

A.2 IEC 62056-21 port operating in legacy mode ........................................................ 23

Annex B (normative) Media specific Profile: TP with carrier signalling Interface ................... 25

B.1 IEC 62056-3-1 port .............................................................................................. 25

B.2 IEC 62056-3-1 port operating in legacy mode ...................................................... 26

Annex C (normative) Media specific profile: EIA-485, TIA-232-F interface ........................... 29

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SIST EN 62056-7-5:2017
IEC 62056-7-5:2016  IEC 2016 – 3 –

C.1 Electrical port RS485/232 .................................................................................... 29

Annex D (normative) Media specific profile: M-Bus EN 13757-2 .......................................... 31

D.1 M-Bus with the HDLC based data link layer ......................................................... 31

Annex E (normative) IP profile ........................................................................................... 33

E.1 IP profile ............................................................................................................. 33

Annex F (informative) LDTI configuration examples ............................................................ 35

F.1 Example 1: only one value (active energy A+) pushed .......................................... 35

Annex G (informative) LDTI encoding examples ................................................................. 37

G.1 xDLMS APDUs used (without protection and without general-block-transfer) ....... 37

G.2 Example 1: Only one value is pushed .................................................................. 37

G.3 Example 2: The OBIS code and one value is pushed............................................ 38

Index .................................................................................................................................. 40

Figure 1 – LDTI DLMS/COSEM client as part of a consumer device ....................................... 9

Figure 2 – LDTI DLMS/COSEM client as part of a local adaptor ............................................. 9

Figure 3 – Entities and interfaces of a smart metering system .............................................. 12

Figure 4 – IEC 62056-7-5 LDTI interface in the context of the smart metering

architecture ........................................................................................................................ 12

Figure 5 –Local data transmission reference model ............................................................. 13

Figure 6 – LDTI – the interface to a pre-established DLMS/COSEM LDTI client .................... 18

Figure 7 – Interface classes modelling the push operation ................................................... 19

Figure 8 – Example of a security environment for an LDTI using global keys ........................ 20

Figure 9 – LDTI – operating in “legacy mode” ...................................................................... 21

Figure A.1 – Structure of the optical interface profile ........................................................... 22

Figure A.2 – Structure of the optical interface – “operating in legacy mode” – profile ............ 24

Figure B.1 – Structure of the TP with carrier signalling profile .............................................. 25

Figure B.2 – Structure of the TP with carrier signalling – “operating in legacy mode” –

profile ................................................................................................................................. 27

Figure C.1 – Structure of the RS485/232 profile ................................................................... 29

Figure D.1 – Structure of the “M-Bus with HDLC based data link layer” profile ...................... 31

Figure E.1 – Structure of the IP profile ................................................................................ 33

Table 1 – Features of communication profiles using DLMS/COSEM compatible and

legacy protocol modes .......................................................................................................... 9

Table 2 – Conformance block for the LDTI association......................................................... 16

Table 3 – Configuration of a LDTI operating in "legacy mode" .............................................. 20

Table A.1 – Mandatory setup attribute values for an optical IEC 62056-21 interface

supporting IEC 62056-5-3 ................................................................................................... 23

Table A.2 – Mandatory setup attribute values for an optical IEC 62056-21 operating in

the “legacy mode” ............................................................................................................... 24

Table B.1 – Mandatory setup attribute values for a TP IEC 62056-3-1 supporting

IEC 62056-5-3 .................................................................................................................... 26

Table B.2 – Mandatory setup attribute values for a TP IEC 62056-3-1 operating in the

“legacy mode” ..................................................................................................................... 28

Table C.1 – Mandatory setup attribute values for an electrical RS485/232 IEC 62056-

21 interface supporting IEC 62056-5-3 ................................................................................ 30

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SIST EN 62056-7-5:2017
– 4 – IEC 62056-7-5:2016  IEC 2016

Table D.1 – Mandatory setup attribute values for an M-Bus port with HDLC based data

link layer ............................................................................................................................. 32

Table E.1 – Mandatory setup attribute values for an IP port ................................................. 34

Table F.1 – Configuration example: one value pushed every 10 s via optical port ................. 35

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SIST EN 62056-7-5:2017
IEC 62056-7-5:2016  IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –
Part 7-5: Local data transmission profiles for Local Networks (LN)
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

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

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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

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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 62056-7-5 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:

DLMS User Association
Zug/Switzerland
www.dlms.com

International Standard IEC 62056-7-5 has been prepared by technical committee 13:

Electrical energy measurement and control.
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SIST EN 62056-7-5:2017
– 6 – IEC 62056-7-5:2016  IEC 2016
The text of this standard is based on the following documents:
CDV Report on voting
13/1605/CDV 13/1650/RVC

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62056 series, published under the general title Electricity metering

data exchange – The DLMS/COSEM suite, can be found on the IEC website.

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 62056-7-5:2017
IEC 62056-7-5:2016  IEC 2016 – 7 –
INTRODUCTION
As defined in IEC 62056-1-0, the IEC 62056 DLMS/COSEM suite provides specific

communication profile standards for communication media relevant for smart metering.

Such communication profile standards specify how the COSEM data model and the

DLMS/COSEM application layer can be used on the lower, communication media-specific

protocol layers.

Communication profile standards refer to communication standards that are part of the

IEC 62056 DLMS/COSEM suite or to any other open communication standard.

This International Standard specifies DLMS/COSEM communication profiles for transmitting

metering data modelled by COSEM interface objects through Local Data Transmission

Interfaces (LDTI). The LDTI may be part of a meter or of a Local Network Access Point

(LNAP) hosting a DLMS/COSEM server.
The specification of the communication profiles follows the rules defined in
IEC 62056-5-3:2016, Annex A.

A major driver for the introduction of smart metering is to provide the consumer with suitable

metering information to optimise his/her energy consumption and/or production. For that

purpose, smart meters are equipped with local interfaces providing metering data for the

consumer on consumer devices.

IEC 62056-21 and IEC 62056-3-1 are communication standards that specify direct local data

exchange and data exchange through local networks. They provide protocol modes that

support the DLMS/COSEM application layer and thus the COSEM object model. They also

specify legacy modes that do not support the DLMS/COSEM application layer.

In order to allow connecting legacy consumer equipment to the LDTI, this International

Standard also specifies communication profiles using protocol modes that do not support the

DLMS/COSEM application layer.

It is assumed, however, that in all cases the metering application is modelled by COSEM

interface objects.

It is also assumed that the meter has interfaces that fully support DLMS/COSEM and allow

the configuration of the local data transmission interface by a DLMS/COSEM client.

The requirements on the physical type of the interface, the choice of the data transmitted and

the transmitting pattern highly depends on the markets and projects the meter is designed for.

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SIST EN 62056-7-5:2017
– 8 – IEC 62056-7-5:2016  IEC 2016
ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –
Part 7-5: Local data transmission profiles for Local Networks (LN)
1 Scope

This part of IEC 62056 specifies DLMS/COSEM communication profiles for transmitting

metering data modelled by COSEM interface objects through a Local Data Transmission

Interface (LDTI). The LDTI may be part of a meter or of a Local Network Access Point (LNAP)

hosting a DLMS/COSEM server.

The main body of this standard specifies the common aspects of the different communication

profiles for the LDTI interface.

The Annexes specify the communication protocol specific elements. The Annexes form an

integral part of this International Standard.

Annex A (normative) specifies a communication profile using the protocol specified in

IEC 62056-21. Clause A.1 specifies the communication profile that supports the

DLMS/COSEM application layer and Clause A.2 specifies the communication profile using the

legacy Mode D. The physical interface is the optical interface specified in IEC 62056-21:2002,

4.3.

Annex B (normative) specifies a communication profile using the protocol specified in

IEC 62056-3-1. Clause B.1 specifies the communication profile that supports the

DLMS/COSEM application layer and Clause B.2 specifies the communication profile using the

legacy mode. The physical interface is twisted pair using carrier signalling known as the

Euridis Bus.

Annex C (normative) specifies a communication profile based on the DLMS/COSEM 3-layer,

connection oriented HDLC based profile specified in IEC 62056-7-6. The physical interface is

RS 485 or TIA-232-F.

Annex D (normative) specifies a communication profile using the physical layer specified in

EN 13757-2 and the HDLC based data link layer specified in IEC 62056-46. The physical

interface is twisted pair with baseband signalling.
Annex E (normative) species a communication profile using UDP/IP. The
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