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 is available as IEC 62056-3-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62056-3-1:2021 describes two sets of profiles: the first set of profiles allows a bidirectional communication between a client and a server. This set of profiles is made of three profiles allowing local bus data exchange with stations either energized or not. For non-energized stations, the bus supplies energy for data exchange. Three different profiles are supported:
• base profile: this three-layer profile provides remote communication services;
NOTE 1 This first profile was published in IEC 61142:1993 and became known as the Euridis standard.
• profile with DLMS: this profile allows using DLMS services as specified in IEC 61334 4 41;
NOTE 2 This second profile was published in IEC 62056-31:1999.
• profile with DLMS/COSEM: this profile allows using the DLMS/COSEM Application layer and the COSEM object model as specified in IEC 62056 5 3 and in IEC 62056 6 2 respectively.
The three profiles use the same physical layer and they are fully compatible, meaning that devices implementing any of these profiles can be operated on the same bus. The transmission medium is twisted pair using carrier signalling and it is known as the Euridis Bus.
The second set of profiles allows unidirectional communication between a given Energy Metering device and a Customer Energy Management System. This second set is made up of three profiles.
Subclause 4.2.1 to Clause 8 included specify the bidirectional communication using twisted pair signalling and Clause 9 to 9.5 the unidirectional communication using twisted pair signalling.
This second edition cancels and replaces the first edition of IEC 62056-3-1, issued in 2013, and constitutes a technical revision.
The main technical changes with regard to the previous edition are as follows:
• addition of a profile which makes use of the IEC 62056 DLMS/COSEM Application layer and COSEM object model;
• review of the data link layer which is split into two parts:
– a pure Data Link layer;
– a "Support Manager" entity managing the communication media;
• ability to negotiate the communication speed, bringing baud rate up to 9 600 bauds.

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

IEC 62056-3-1:2021 est disponible sous forme de IEC 62056-3-1:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
IEC 62056-3-1:2021 décrit deux ensembles de profils: le premier ensemble permet une communication bidirectionnelle entre un client et un serveur. Cet ensemble est composé de trois profils permettant l’échange de données par bus en local avec des stations alimentées ou non en énergie. Pour les stations téléalimentées, le bus fournit l’énergie pour l’échange des données. Trois différents profils sont pris en charge:
• Profil de base: ce profil en trois couches fournit des services de télérelevé;
NOTE 1 Ce profil a été publié dans l’IEC 61142:1993 et était alors connu sous le nom de Norme Euridis.
• Profil avec DLMS: ce profil permet l’utilisation des services DLMS tels qu’ils sont spécifiés dans l’IEC 61334 4 41;
NOTE 2 Ce deuxième profil a été publié dans l’IEC 62056-31: 1999.
• Profil avec DLMS/COSEM: ce profil permet l’utilisation de la couche Application de DLMS/COSEM et le modèle objet COSEM tels qu’ils sont spécifiés respectivement dans l’IEC 62056 5 3 et dans l’IEC 62056 6 2.
Les trois profils utilisent la même couche physique et ils sont entièrement compatibles, c’est-à-dire que des dispositifs mettant en œuvre l’un de ces profils peuvent fonctionner sur le même bus. Le moyen de transmission est la paire torsadée par signal de porteuse et connue sous le nom de Bus Euridis.
Le deuxième ensemble de profils permet une communication unidirectionnelle entre un dispositif de comptage de l’énergie (energy metering device) donné et un système de gestion de l’énergie client (customer energy management system). Ce deuxième ensemble est composé de trois profils.
Le paragraphe 4.2.1 à l'Article 8 inclus spécifient la communication bidirectionnelle utilisant le signal avec paire torsadée et l'Article 9 au 9.5 spécifient la communication unidirectionnelle utilisant le signal avec paire torsadée.
Cette deuxième édition annule et remplace la première édition de l’IEC 62056-3-1, parue en 2013. Cette édition constitue une révision technique.
Les principales modifications techniques par rapport à l’édition précédente sont les suivantes:
• Ajout d’un profil qui permet l’utilisation de la couche Application et la modélisation objet DLMS/COSEM de l’IEC 62056;
• Révision de la couche liaison de données qui est maintenant scindée en deux parties:
– la première est intégralement une couche de liaison de données;
– la dernière, nommée “Gestion du Support”, gère le média de communication;
• Capacité de négocier la vitesse de communication, portant la vitesse maximale jusqu’à 9 600 bauds.

General Information

Status
Published
Publication Date
06-Jul-2021
Current Stage
PPUB - Publication issued
Completion Date
07-Jul-2021
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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
IEC 62056-3-1:2021-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
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
---------------------- Page: 3 ----------------------
– 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

---------------------- Page: 4 ----------------------
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

---------------------- Page: 5 ----------------------
– 4 – IEC 62056-3-1:2021 © IEC 2021

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

---------------------- Page: 6 ----------------------
IEC 62056-3-1:2021 © IEC 2021 – 5 –
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

---------------------- Page: 7 ----------------------
– 6 – IEC 62056-3-1:2021 © IEC 2021
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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International Standard IEC 62056-3-1 has been prepared by IEC technical committee 13:

Electrical energy measurement and control.

This second edition cancels and replaces the first edition of IEC 62056-3-1, issued in 2013, and

constitutes a technical revision.
The main technical changes with regard to the previous edition are as fol
...

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