EN 62056-21:2002

Electricity metering - Data exchange for meter reading, tariff and load control - Part 21: Direct local data exchange

Describes hardware and protocol specifications for local meter data exchange. In such systems, a hand-held unit (HHU) or a unit with equivalent functions is connected to a tariff device or a group of devices.

Messung der elektrischen Energie - Zählerstandsübertragung, Tarif- und Laststeuerung - Teil 21: Datenübertragung für festen und mobilen Anschluss

Equipements de mesure de l'énergie électrique - Echange des données pour la lecture des compteurs, le contrôle des tarifs et de la charge - Partie 21: Echange des données directes en local

Décrit le matériel et les protocoles des échanges de données de compteurs effectués en local. Dans ces systèmes, un terminal de saisie portable (TSP) ou un appareil aux fonctions équivalentes est connecté à un ou plusieurs appareils de tarification.

Electricity metering - Data exchange for meter reading, tariff and load control - Part 21: Direct local data exchange (IEC 62056-21:2002)

General Information

• Status: Published
• Publication Date: 20-Jun-2002
• Withdrawal Date: 30-Apr-2005
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 35.100 - Open systems interconnection (OSI)
• 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
• Parallel Committee: IEC/TC 13 - IEC_TC_13
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 21-Jun-2002
• Completion Date: 21-Jun-2002
• Mandate: M/441 - Standardisation mandate to CEN, CENELEC and ETSI in the field of measuring instruments for the development of an open architecture for utility meters involving communication protocols enabling interoperability
• Ref Project: SIST EN 62056-21:2004 - Electricity metering - Data exchange for meter reading, tariff and load control -- Part 21: Direct local data exchange

Relations

• Replaces: EN 61107:1996 - Data exchange for meter reading, tariff and load control - Direct local data exchange
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2004
1DGRPHãþD
SIST EN 61107:1997
Electricity metering - Data exchange for meter reading, tariff and load control - Part
21: Direct local data exchange (IEC 62056-21:2002)
Electricity metering - Data exchange for meter reading, tariff and load control -- Part 21:
Direct local data exchange
Messung der elektrischen Energie - Zählerstandsübertragung, Tarif- und Laststeuerung -
- Teil 21: Datenübertragung für festen und mobilen Anschluss
Equipements de mesure de l'énergie électrique - Echange des données pour la lecture
des compteurs, le contrôle des tarifs et de la charge -- Partie 21: Echange des données
directes en local
Ta slovenski standard je istoveten z: EN 62056-21:2002
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
35.100.01 Medsebojno povezovanje Open systems
odprtih sistemov na splošno interconnection in general
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62056-21
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2002
ICS 17.220.20;35.100;91.140.50 Supersedes EN 61107:1996
English version
Electricity metering -
Data exchange for meter reading, tariff and load control
Part 21: Direct local data exchange
(IEC 62056-21:2002)
Equipements de mesure Messung der elektrischen Energie -
de l'énergie électrique - Zählerstandsübertragung,
Echange des données pour la lecture Tarif- und Laststeuerung
des compteurs, le contrôle des tarifs Teil 21: Datenübertragung für festen
et de la charge und mobilen Anschluss
Partie 21: Echange des données (IEC 62056-21:2002)
directes en local
(CEI 62056-21:2002)
This European Standard was approved by CENELEC on 2002-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62056-21:2002 E
Foreword
The text of document 13/1271/FDIS, future edition 1 of IEC 62056-21, prepared by IEC TC 13,
Equipment for electrical energy measurement and load control, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 62056-21 on 2001-05-01.
This European Standard supersedes EN 61107:1996.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-05-01
The International Electrotechnical Commission (IEC) and CENELEC draw attention to the fact that it is
claimed that compliance with this International Standard / European Standard may involve the use of a
maintenance service concerning the stack of protocols on which the present standard IEC 62056-21 /
EN 62056-21 is based.
The IEC and CENELEC take no position concerning the evidence, validity and scope of this
maintenance service.
The providers of the maintenance service have assured the IEC that they are willing to provide services
under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In
this respect, the statements of the providers of the maintenance service are registered with the IEC.
Information may be obtained :
Manufacturer's identification, item 12) of 6.3.2: from
The FLAG Association, UK
www.dlms.com/flag
Enhanced identification character, item 24) of 6.3.2: from
1)
DLMS User Association
Geneva / Switzerland
www.dlms.ch
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A, B, E and ZA are normative and annexes C and D are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62056-21:2002 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 62056-61 NOTE Harmonized as EN 62056-61:2002 (not modified).
IEC 62056-62 NOTE Harmonized as EN 62056-62:2002 (not modified).
__________
1)
Device Language Message Specification

- 3 - EN 62056-21:2002
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-300 2001 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/TR 62051 1999 Electricity metering - Glossary of terms - -
IEC 62056-42 2002 Electricity metering - Data exchange for EN 62056-42 2002
meter reading, tariff and load control
Part 42: Physical layer services and
procedures for connection-oriented
asynchronous data exchange
IEC 62056-46 2002 Part 46: Data link layer using HDLC EN 62056-46 2002
protocol
IEC 62056-53 2002 Part 53: COSEM application layer EN 62056-53 2002
ISO/IEC 646 1991 Information technology - ISO 7-bit--
coded character set for information
interchange
ISO/IEC 1155 1978 Information processing - Use of --
longitudinal parity to detect errors in
information messages
ISO/IEC 1177 1985 Information processing - Character--
structure for start/stop and synchronous
character-oriented transmission
ISO/IEC 1745 1975 Information processing - Basic mode--
control procedures for data
communication systems
Publication Year Title EN/HD Year
ISO/IEC 7480 1991 Information technology - --
Telecommunications and information
exchange between systems - Start/stop
transmission signal quality at DTE/DCE
interfaces
ITU-T 2000 List of definitions for interchange circuits--
Recommendation between data terminal equipment (DTE)
V.24 and data circuit-terminating equipment
(DCE)
ITU-T 1993 Electrical characteristics for unbalanced--
Recommendation double-current interchange circuits
V.28
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62056-21 © IEC:2002 – 3 –
CONTENTS
FOREWORD.9
INTRODUCTION.13
1 Scope.15
2 Normative references.15
3 Terms, definitions and abbreviations .17
3.1 Terms and definitions .17
3.2 Abbreviations.19
4 Physical properties .19
4.1 Electrical current loop interface.19
4.2 Electrical interface V.24/V.28 .23
4.3 Optical interface .25
4.3.1 Construction of the reading head.25
4.3.2 Characteristic data of the magnet.25
4.3.3 Arrangement of components in the tariff device.29
4.3.4 Alignment .29
4.3.5 Optical characteristics.29
5 Character transmission .33
5.1 Type of transmission.33
5.2 Transmission speed.33
5.3 Signal quality.33
5.4 Character format .33
5.5 Character code.33
5.6 Character security .33
6 Data transmission protocol.35
6.1 General .35
6.2 Calculation of the block check character .35
6.3 Message definitions .37
6.3.1 Request message .37
6.3.2 Identification message .37
6.3.3 Acknowledgement/option select message .37
6.3.4 Data message (except in programming mode).37
6.3.5 Acknowledgement message.37
6.3.6 Repeat-request message .37
6.3.7 Programming command message .39
6.3.8 Programming command message using optional partial blocks.39
6.3.9 Data message (programming mode) .39
6.3.10 Data message (programming mode) using optional partial blocks .39
6.3.11 Error message (programming mode) .39
6.3.12 Break message (programming mode).39
6.3.13 Block message (other protocols) .39
6.3.14 Explanations of message contents .41

62056-21 © IEC:2002 – 5 –
6.4 Communication modes .47
6.4.1 Protocol mode A .47
6.4.2 Protocol mode B .49
6.4.3 Protocol mode C .53
6.4.4 Protocol mode D .61
6.4.5 Protocol mode E (other protocols) .61
6.4.6 Entering programming mode (unknown tariff device) .63
6.4.7 Partial block communication (optional, only in protocol mode C) .65
6.5 Syntax diagrams.71
6.5.1 Readout mode .
...