SIST EN IEC 62056-3-1:2021

SLOVENSKI STANDARD
SIST EN IEC 62056-3-1:2021
01-november-2021
Nadomešča:
SIST EN 62056-3-1:2014
Izmenjava podatkov meritev električne energije - Niz DLMS/COSEM - 3-1. del:
Uporaba lokalnih omrežij prek zvitih parov s signalizacijo po nosilcu
Electricity metering data exchange - The DLMS/COSEM suite - Part 3-1: Use of local
area networks on twisted pair with carrier signalling
Ta slovenski standard je istoveten z: EN IEC 62056-3-1:2021
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
35.110 Omreževanje Networking
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST EN IEC 62056-3-1:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62056-3-1:2021

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SIST EN IEC 62056-3-1:2021


EUROPEAN STANDARD EN IEC 62056-3-1

NORME EUROPÉENNE

EUROPÄISCHE NORM August 2021
ICS 17.220.20; 35.110; 91.140.50 Supersedes EN 62056-3-1:2014 and all of its
amendments and corrigenda (if any)
English Version
Electricity metering data exchange - The DLMS/COSEM suite -
Part 3-1: Use of local area networks on twisted pair with carrier
signalling
(IEC 62056-3-1:2021)
Échange des données de comptage de l'électricité - La Datenkommunikation der elektrischen Energiemessung -
suite DLMS/COSEM - Partie 3-1: Utilisation des réseaux DLMS/COSEM - Teil 3-1: Nutzung lokaler Netzwerke mit
locaux sur paire torsadée avec signal de porteuse Trägerfrequenz-Signalübertragung auf verdrillten
(IEC 62056-3-1:2021) Zweidrahtleitungen
(IEC 62056-3-1:2021)
This European Standard was approved by CENELEC on 2021-08-11. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62056-3-1:2021 E

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SIST EN IEC 62056-3-1:2021
EN IEC 62056-3-1:2021 (E)
European foreword
The text of document 13/1794/CDV, future edition 2 of IEC 62056-3-1, prepared by IEC/TC 13
“Electrical energy measurement and control” was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 62056-3-1:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–05–11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–08–11
document have to be withdrawn

This document supersedes EN 62056-3-1:2014 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62056-3-1:2021 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 62056-6-1:2017 NOTE Harmonized as EN 62056-6-1:2017 (not modified)
2

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SIST EN IEC 62056-3-1:2021
EN IEC 62056-3-1:2021 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where 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 61334-4-41 1996 Distribution automation using distribution EN 61334-4-41 1996
line carrier systems - Part 4: Data
communication protocols - Section 41:
Application protocol - Distribution line
message specification
IEC 62056-5-3 2017 Electricity metering data exchange - The EN 62056-5-3 2017
DLMS/COSEM suite - Part 5–3:
DLMS/COSEM application layer
IEC 62056-6-2 2017 Electricity metering data exchange - The EN IEC 62056-6-2 2018
DLMS/COSEM suite - Part 6–2: COSEM
interface classes
IEC 62056-51 1998 Electricity metering - Data exchange for - -
meter reading, tariff and load control - Part
51: Application layer protocols
ISO/IEC 8482 1993 Information technology - - -
Telecommunications and information
exchange between systems - Twisted pair
multipoint interconnections
EIA 485 - Electrical characteristics of generators and - -
receivers for use in balanced digital
multipoint systems

3

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SIST EN IEC 62056-3-1:2021

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SIST EN IEC 62056-3-1:2021




IEC 62056-3-1

®


Edition 2.0 2021-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Electricity metering data exchange – The DLMS/COSEM suite –

Part 3-1: Use of local area networks on twisted pair with carrier signalling




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

Partie 3-1: Utilisation des réseaux locaux sur paire torsadée avec signal de

porteuse















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 17.220.20; 35.110; 91.140.50 ISBN 978-2-8322-9940-1




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 IEC 62056-3-1:2021
– 2 – IEC 62056-3-1:2021 © IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions. 9
3.2 Abbreviated terms . 9
4 General description . 10
4.1 Basic vocabulary . 10
4.2 Profiles, layers and protocols . 11
4.3 Specification language . 12
4.4 Communication services for local bus data exchange without DLMS . 12
4.5 Communication services for local bus data exchange with DLMS . 21
4.6 Systems management . 22
5 Local bus data exchange without DLMS . 23
5.1 Physical layer . 23
5.2 Data Link layer . 35
5.3 Application layer . 43
6 Local bus data exchange with DLMS . 46
6.1 Physical layer . 46
6.2 Data Link layer . 47
6.3 Application layer . 56
7 Local bus data exchange with DLMS/COSEM . 56
7.1 Model . 56
7.2 Physical Layer . 56
7.3 Data Link layer . 67
7.4 Support Manager layer . 76
7.5 Transport Layer . 80
7.6 Application Layer . 84
8 Local bus data exchange – Hardware . 85
8.1 General . 85
8.2 General characteristics . 85
8.3 Bus specification . 90
8.4 Magnetic plug . 92
8.5 Functional specifications of Primary Station transmitter (for 50 kHz signal) . 94
8.6 Functional specifications of Primary Station receiver (for 50 kHz signal) . 95
8.7 Functional specification of Secondary Station transmitter (for 50 kHz signal) . 96
8.8 Functional specifications of Secondary Station receiver (for 50 kHz signal) . 97
9 Unidirectional local data transmission interface . 98
9.1 Introduction . 98
9.2 General description . 98
9.3 Historical TIC . 98
9.4 Standard TIC . 102
9.5 Unidirectional TIC Hardware . 103
Annex A (normative) Specification language . 110
A.1 Vocabulary and operating rules . 110

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IEC 62056-3-1:2021 © IEC 2021 – 3 –
A.2 Entity and Entity Invocation . 111
Annex B (normative) Timing types and characteristics . 112
B.1 Timing type definition . 112
B.2 Timing measurements and characteristics. 113
Annex C (normative) List of fatal errors . 114
Annex D (normative) Coding the command code field of frames . 115
D.1 Command codes for local bus data exchange (Table D.1) . 115
D.2 Codes of commands for data exchange on the local bus with DLMS or
DLMS/COSEM . 115
Annex E (normative) Principle of the CRC . 117
E.1 General . 117
E.2 Operations on the polynomials . 117
E.3 Check procedure. 117
E.4 Operating parameters . 118
Annex F (normative) Random integer generation for response from forgotten stations . 119
F.1 General . 119
F.2 Criterion for a random integer . 119
F.3 Operating parameters . 119
Annex G (normative) Random number generation for authentication (profile without

DLMS) . 120
Annex H (normative) Systems management implementation . 121
Annex I (informative) Information about exchanges . 122
I.1 Non-energized station session (Figure I.1) . 122
I.2 Remote reading and programming exchanges (Figure I.2) . 123
I.3 Bus initialization frame (Figure I.3). 124
I.4 Forgotten station call exchange (Figure I.4) . 125
Bibliography . 126

Figure 1 – IEC 62056-3-1 communication profiles . 11
Figure 2 – Alarm mechanism . 21
Figure 3 – Exchanges in continuous operation . 25
Figure 4 – Alarm event without any communication in progress . 26
Figure 5 – Alarm event with a communication in progress . 26
Figure 6 – Signal envelope on the bus . 86
Figure 7 – Bus representation . 87
Figure 8 – Power supply characteristics . 87
Figure 9 – States associated to a session: for selected Secondary Station . 88
Figure 10 – States associated to a session: for non-selected Secondary Station. 88
Figure 11 – Simple and multiple Secondary stations . 89
Figure 12 – Equivalent diagram of the test equipment . 91
Figure 13 – Ferrite pot and bobbin . 92
Figure 14 – Associated components of the magnetic plug . 93
Figure 15 – Associated components of the energy supply plug . 94
Figure 16 – Character transmission . 99
Figure 17 – Historical TIC: information group structure . 100
Figure 18 – Standard TIC: Application information group structure . 102

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Figure 19 – Standard TIC: Timestamped information group structure . 102
Figure 20 – Equivalent diagram of the test equipment . 106
Figure 21 – Signal envelope on the bus . 107
Figure B.1 – Logical timing type . 112
Figure B.2 – Physical timing type . 112
Figure B.3 – Results processing for timing defined with low and high limits . 113
Figure B.4 – Results processing for timing defined by a nominal value . 113
Figure I.1 – Non-energized station session . 122
Figure I.2 – Remote reading and programming exchanges . 123
Figure I.3 – Bus initialization . 124
Figure I.4 – Forgotten station call exchange. 125

Table 1 – Primary Station timing . 24
Table 2 – Secondary Station timing . 25
Table 3 – Physical services and service primitives . 26
Table 4 – Physical-62056-3-1 state transitions: Primary Station . 27
Table 5 – Power supply management state transitions (only for non-energized
Secondary Station) . 30
Table 6 – Physical-62056-3-1 state transitions: Secondary Station . 31
Table 7 – Meaning of the states listed in the previous tables. 32
Table 8 – Definition of the procedures, functions and events classified in alphabetical

order . 33
Table 9 – Error summary table . 35
Table 10 – Data Link services and service primitives . 36
Table 11 – Link-62056-3-1 state transitions: Primary Station . 37
Table 12 – Link-62056-3-1 State transitions: Secondary Station . 40
Table 13 – Meaning of the states listed in the previous tables . 41
Table 14 – Definition of the procedures and functions classified in alphabetical order . 41
Table 15 – Error summary table . 42
Table 16 – Application services and service primitives . 43
Table 17 – Application-62056-3-1 state transitions: Primary Station . 44
Table 18 – Application-62056-3-1 state transitions: Secondary Station . 45
Table 19 – Meaning of the states listed in the previous tables . 45
Table 20 – Definition of the procedures and functions classified in alphabetical order . 46
Table 21 – Error summary table . 46
Table 22 – Data Link services and service primitives . 48
Table 23 – Link-E/D state transitions: Primary Station . 49
Table 24 – Link-E/D state transitions: Secondary Station . 51
Table 25 – Meaning of the states listed in the previous tables . 53
Table 26 – Definition of the procedures and functions classified in alphabetical order . 54
Table 27 – Error summary table . 55
Table 28 – Client_connect function definition . 56
Table 29 – E/COSEM Physical services and service primitives . 57
Table 30 – E/COSEM Physical state transitions: Primary Station . 59

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Table 31 – Power supply management state transitions (only for non-energized
Secondary Station) . 61
Table 32 – E/COSEM Physical State transitions: Secondary Station . 63
Table 33 – Meaning of the states listed in the previous tables . 64
Table 34 – Definition of the procedures, functions and events classified in alphabetical

order . 65
Table 35 – Error summary table . 67
Table 36 – Data Link services and service primitives . 68
Table 37 – DLMS/COSEM Data Link E/D state transitions: Primary Station. 70
Table 38 – DLMS/COSEM Link E/D state transitions: Secondary Station . 72
Table 39 – Meaning of the states listed in the previous tables . 74
Table 40 – Definition of the procedures and functions classified in alphabetical order . 75
Table 41 – Commands managed by the Support Manager layer . 76
Table 42 – List of parameters . 78
Table 43 – Support Manager layer state transitions: Primary Station. 78
Table 44 – Support Manager layer state transitions: Secondary Station . 79
Table 45 – Meaning of the states listed in the previous table . 79
Table 46 – Definition of procedures, functions and events . 79
Table 47 – Transport services and services primitive . 81
Table 48 – Transport state transitions . 81
Table 49 – Meaning of the states listed in the previous table . 83
Table 50 – Definition of the procedures and functions classified in alphabetical order . 83
Table 51 – Primary station transmitter: Tev0 and Tev1 values . 95
Table 52 – Primary station receiver: Tev0 and Tev1 values . 95
Table 53 – Secondary station transmitter: Tev0 and Tev1 values . 96
Table 54 – Secondary station receiver: Tev0 and Tev1 values . 97
Table 55 – TIC terminal board pin out . 104
Table 56 – Power supply characteristics . 104
Table 57 – Signal characteristics . 106
Table C.1 – FatalError error numbers . 114
Table D.1 – Command codes for local bus data exchange . 115
Table D.2 – Command codes with DLMS and DLMS/COSEM . 116
Table H.1 – Discovery service . 121
Table H.2 – Service specification . 121

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –

Part 3-1: Use of local area networks on twisted pair
with carrier signalling

FOREWORD
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