IEC 62056-62:2006

INTERNATIONAL IEC
STANDARD 62056-62
Second edition
2006-11
Electricity metering –
Data exchange for meter
reading, tariff and load control –
Part 62:
Interface classes
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INTERNATIONAL IEC
STANDARD 62056-62
Second edition
2006-11
Electricity metering –
Data exchange for meter
reading, tariff and load control –
Part 62:
Interface classes
© IEC 2006 ⎯ Copyright - all rights reserved
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– 2 – 62056-62 © IEC:2006(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms, definitions and abbreviations .8
4 Basic principles .9
4.1 General .9
4.2 Class description notation .10
4.3 Common data types .12
4.4 Data formats .13
4.5 The COSEM server model .17
4.6 COSEM logical device.18
4.7 Authentication procedures.19
5 The interface classes .20
5.1 Data (class_id: 1) .22
5.2 Register (class_id: 3) .22
5.3 Extended register (class_id: 4) .26
5.4 Demand register (class_id: 5).27
5.5 Register activation (class_id: 6).30
5.6 Profile generic (class_id: 7) .32
5.7 Clock (class_id: 8).37
5.8 Script table (class_id: 9).40
5.9 Schedule (class_id: 10) .41
5.10 Special days table (class_id: 11) .44
5.11 Activity calendar (class_id: 20) .45
5.12 Association LN (class_id: 15) .48
5.13 Association SN (class_id: 12) .53
5.14 SAP assignment (class_id: 17) .56
5.15 Register monitor (class_id: 21) .56
5.16 Utility tables (class_id: 26) .57
5.17 Single action schedule (class_id: 22).59
5.18 Register table (class_id: 61) .60
5.19 Status mapping (class_id: 63) .62
6 Maintenance of the interface classes.63
6.1 New interface classes .63
6.2 New versions of interface classes.63
6.3 Removal of interface classes.63

Annex A (normative) Protocol related interface classes.64
Annex B (normative) Data model and protocol .84
Annex C (normative) Using short names for accessing attributes and methods .85
Annex D (normative) Relation to OBIS .94
Annex E (informative) Previous versions of interface classes.116

Bibliography.122

62056-62 © IEC:2006(E) – 3 –
Index .123

Figure 1 – An interface class and its instances .10
Figure 2 – The COSEM server model.17
Figure 3 – Combined metering device.17
Figure 4 – Overview of the interface classes.21
Figure 5 – The attributes when measuring sliding demand .27
Figure 6 – The attributes when measuring current_average_value if number of periods
is 1 .27
Figure 7 – The attributes if the number of periods is 3 .28
Figure 8 – The generalized time concept .38
Figure B.1 – The three step approach of COSEM.84

Table 1 – Common data types .12

– 4 – 62056-62 © IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICITY METERING – DATA EXCHANGE
FOR METER READING, TARIFF AND LOAD CONTROL –

Part 62: Interface classes
FOREWORD
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which the present standard IEC 62056-62 is based.
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Annex E) may be obtained from:
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Geneva / Switzerland
www.dlms.ch
———————
Device Language Message Specification.

62056-62 © IEC:2006(E) – 5 –
International Standard IEC 62056-62 Ed. 2 has been prepared by IEC technical committee 13:
Equipment for electrical energy measurement and load control.
This second edition cancels and replaces the first edition published in 2002 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• the list of common data types has been amended, some new types have been added;
• formatting for floating point numbers has been added;
• new HLS mechanisms have been added;
• instance specific data types have been replaced with a well-defined set of applicable data
types;
• new units have been added;
• encoding of application_context_name and authentication_mechanism_name
...