1、 INTERNATIONAL STANDARD IEC62056-53 Second edition2006-12 Electricity metering Data exchange for meter reading,tariff and load control Part 53:COSEM application layer Reference number IEC 62056-53:2006(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BO
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11、NTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62056-53 IEC:2006(E)CONTENTS FOREWORD.5 1 Scope.7 2 Normative references.7 3 Terms,definitions and abbreviations.8 4 The COSEM communications framework.10 4.1 Client/server type operation,communication profiles.10 4.2 Connection(asso
12、ciation)oriented operation.12 5 Overview:the COSEM application layer.12 5.1 Specification method.12 5.2 Application layer structure.12 5.3 Service specification.13 5.4 Layer management services.15 5.5 Protocol specification.15 6 COSEM application layer Service specification.16 6.1 Summary of service
13、s.16 6.2 Application association establishment and release.16 6.3 Special application associations.17 6.4 Data communication.18 6.5 Client COSEM application layer services.19 6.6 Server COSEM application layer services.38 6.7 Summary of COSEM application layer services and service parameters.55 7 CO
14、SEM application layer protocol specification.59 7.1 State definitions for the client side control function.59 7.2 State definitions for the server side control function.61 7.3 Protocol for application association establishment/release.62 7.4 Protocol for data communications.74 8 Specification of COS
15、EM data types.89 8.1 The COSEM APDUs.89 8.2 The ACSE APDUs.90 8.3 Useful types.93 8.4 The xDLMS-Initiate.request/response/ConfirmedServiceError PDUs.98 8.5 The conformance block.98 8.6 Definition of APDUs for data communication.99 Annex A(normative)The xDLMS application service element.105 Annex B(n
16、ormative)Using the COSEM Application Layer in various communication profiles.107 Annex C(informative)AARQ and AARE encoding examples.126 Annex D(informative)Data model and protocol.138 Bibliography.139 INDEX.142 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62056-53 IEC:2006(E)3 Figure 1 Client/server relationship in COSEM.10 Figure 2 Exchanging messages via the communication protocol.11 Figure 3 The COSEM application layer on th
