1、BRITISH STANDARD BS EN 62056-21:2002 Electricity metering Data exchange for meter reading, tariff and load control Part 21: Direct local data exchange The European Standard EN 62056-21:2002 has the status of a British Standard ICS 17.220.20; 35.100; 91.140.50 BS EN 62056-21:2002 This British Standar
2、d, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 17 July 2002 BSI 17 July 2002 ISBN 0 580 39994 X National foreword This British Standard is the official Engli
3、sh language version of EN 62056-21:2002. It is identical with IEC 62056-21:2002. It supersedes BS EN 61107:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PEL/13, Electricity meters, which has the responsibility to: A list of organizations repres
4、ented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other,
5、 publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using
6、 the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity fro
7、m legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the
8、UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 71, and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STA
9、NDARD EN 62056-21 NORME EUROPENNE EUROPISCHE NORM June 2002 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All r
10、ights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62056-21:2002 E 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 ex
11、change (IEC 62056-21:2002) Equipements de mesure de lnergie lectrique - Echange des donnes pour la lecture des compteurs, le contrle des tarifs et de la charge Partie 21: Echange des donnes directes en local (CEI 62056-21:2002) Messung der elektrischen Energie - Zhlerstandsbertragung, Tarif- und Las
12、tsteuerung Teil 21: Datenbertragung fr festen und mobilen Anschluss (IEC 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 sta
13、tus 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)
14、. 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 Repub
15、lic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.Foreword The text of document 13/1271/FDIS, future edition 1 of IEC 62056-21, prepared by IEC TC 13, Equipment f
16、or 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 l
17、evel 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 cla
18、imed 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
19、 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
20、 service are registered with the IEC. Information may be obtained : Manufacturers identification, item 12) of 6.3.2: from The FLAG Association, UK Enhanced identification character, item 24) of 6.3.2: from DLMS 1)User Association Geneva / Switzerland www.dlms.ch Annexes designated “normative“ are p
21、art 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 62056-21:2
22、002 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
23、(not modified). _1)Device Language Message Specification Page2 EN6205621:2002 17July2002-6502612 2002:CEI 3 CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references7 3 Terms, definitions and abbreviations.8 3.1 Terms and definitions 8 3.2 Abbreviations.9 4 Physical properties .9 4.1 Electrical curre
24、nt loop interface9 4.2 Electrical interface V.24/V.28.11 4.3 Optical interface 12 4.3.1 Construction of the reading head12 4.3.2 Characteristic data of the magnet.12 4.3.3 Arrangement of components in the tariff device14 4.3.4 Alignment 14 4.3.5 Optical characteristics14 5 Character transmission.16
25、5.1 Type of transmission16 5.2 Transmission speed.16 5.3 Signal quality.16 5.4 Character format .16 5.5 Character code16 5.6 Character security .16 6 Data transmission protocol17 6.1 General .17 6.2 Calculation of the block check character 17 6.3 Message definitions.18 6.3.1 Request message18 6.3.2
26、Identification message .18 6.3.3 Acknowledgement/option select message 18 6.3.4 Data message (except in programming mode)18 6.3.5 Acknowledgement message.18 6.3.6 Repeat-request message .18 6.3.7 Programming command message 19 6.3.8 Programming command message using optional partial blocks.19 6.3.9
27、Data message (programming mode) 19 6.3.10 Data message (programming mode) using optional partial blocks.19 6.3.11 Error message (programming mode)19 6.3.12 Break message (programming mode).19 6.3.13 Block message (other protocols) 19 6.3.14 Explanations of message contents .20 Page3 EN6205621:2002 1
28、7July2002-6502612 2002:CEI 4 6.4 Communication modes 23 6.4.1 Protocol mode A 23 6.4.2 Protocol mode B 24 6.4.3 Protocol mode C26 6.4.4 Protocol mode D30 6.4.5 Protocol mode E (other protocols)30 6.4.6 Entering programming mode (unknown tariff device) 31 6.4.7 Partial block communication (optional,
29、only in protocol mode C) .32 6.5 Syntax diagrams35 6.5.1 Readout mode .36 6.5.2 Programming mode .37 6.6 Data set structure38 Annex A (normative) Flow chart for direct local data exchange protocol, protocol mode C .40 Annex B (normative) Wake-up methods for battery-operated tariff devices42 Annex C
30、(informative) Formatted codes44 Annex D (informative) Levels of access system security 63 Annex E (normative) METERING HDLC protocol using protocol mode E for direct local data exchange 64 Annex ZA (normative) Normative references to international publications with their corresponding European publi
31、cations 70 Bibliography68 Index 69 Figure 1 Circuit diagrams .11 Figure 2 Construction of the reading head 12 Figure 3 Characteristic data of the magnet .13 Figure 4 View into optical port 14 Figure 5 Test arrangement for the transmitter.15 Figure 6 Test arrangement for the receiver.15 Figure 7 Sett
32、ing up a block check character (example according to ISO/IEC 1155) .17 Figure 8 Diagram protocol mode A .23 Figure 9 Transmission protocol for protocol mode A .24 Figure 10 Diagram protocol mode B .25 Figure 11 Transmission protocol for protocol mode B25 Figure 12 Diagram protocol mode C .27 Figure
33、13 Transmission protocol for protocol mode C giving data readout without acknowledgement from the HHU .28 Figure 14 Transmission protocol for protocol mode C giving data readout with confirmation of the suggested baud rate28 Figure 15 Transmission protocol for protocol mode C giving data readout wit
34、h rejection of the suggested baud rate29 Figure 16 Transmission protocol for protocol mode C. Switching to programming mode with acceptance of the suggested baud rate 29 Page4 EN6205621:2002 17July2002-6502612 2002:CEI 5 Figure 17 Transmission protocol for protocol mode C. Switching to programming m
35、ode with rejection of the suggested baud rate.29 Figure 18 Diagram protocol mode D .30 Figure 19 Transmission protocol for protocol mode D .30 Figure 20 Diagram for entering programming mode 31 Figure 21 Example of a partial block unformatted read33 Figure 22 Example of a partial block formatted wri
36、te.34 Figure 23 Example of a partial block formatted write (with errors) .35 Figure 24 Syntax diagrams readout mode36 Figure 25 Syntax diagrams programming mode command.37 Figure 26 Syntax diagram programming mode answer 38 Figure 27 Data set structure .38 Figure A.1 Flow chart for direct local data
37、 exchange protocol, protocol mode C.40 Figure B.1 The start sequence for battery-operated devices42 Figure B.2 Diagram for the start sequence of battery-operated devices by fast wake-up mode 43 Figure C.1 Example of channel types45 Figure C.2 Register coding diagram48 Figure C.3 Bit assignment for g
38、roup data55 Figure C.4 Vector diagrams for quadrants I to IV 62 Figure E.1 Entering protocol mode E (HDLC)64 Figure E.2 Flow chart and switchover to METERING HDLC in protocol mode E.65 Figure E.3 Physical layer primitives 66 Figure E.4 Physical layer primitives, simplified example with one mode chan
39、ge only .66 Table 1 Electrical interface .9 Table 2 Read, Write and Execute commands .32 Page5 EN6205621:2002 17July2002-6502612 2002:CEI 6 INTRODUCTION IEC TC 13 has the task of preparing standards for data exchange for the purposes of meter reading, tariff and load control, and consumer informatio
40、n using various alternative communication media, with reference to ISO and ITU standards. Meter data exchange can be local or remote. This part of IEC 62056 is restricted to local data exchange, whereas remote data exchange is covered by other standards of the IEC 62056 series. Page6 EN6205621:2002
41、17July2002-6502612 2002:CEI 7 ELECTRICITY METERING DATA EXCHANGE FOR METER READING, TARIFF AND LOAD CONTROL Part 21: Direct local data exchange 1 Scope This part of IEC 62056 describes hardware and protocol specifications for local meter data exchange. In such systems, a hand-held unit (HHU) or a un
42、it with equivalent functions is connected to a tariff device or a group of devices. The connection can be permanent or disconnectable using an optical or electrical coupling. An electrical interface is proposed for use with a permanent connection, or when more than one tariff device needs to be read
43、 at one site. The optical coupler should be easily disconnectable to enable data collection via an HHU. The protocol permits reading and programming of tariff devices. It is designed to be particularly suitable for the environment of electricity metering, especially as regards electrical isolation a
44、nd data security. While the protocol is well-defined, its use and application are left to the user. This standard is based on the reference model for communication in open systems. It is enhanced by further elements such as an optical interface, protocol controlled baud rate switchover, data transmi
45、ssion without acknowledgement of receipt. The protocol offers several modes for implementation in the tariff device. The HHU or equivalent unit acts as a master while the tariff device acts as a slave in protocol modes A to D. In protocol mode E, the HHU acts as a client and the tariff device acts a
46、s a server. As several systems are in practical use already, particular care was taken to maintain compatibility with existing systems and/or system components and their relevant protocols. 2 Normative references The following normative documents contain provisions which, through reference in this t
47、ext, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most
48、 recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60050-300:2001, International Electrotechnical Vocabulary (IEV) 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 Page7 EN6205621:2002 17July2002-6502612 2002:CEI 8 IEC 62051:1999,
