IEC 62056-6-2:2017

IEC 62056-6-2 ®
Edition 3.0 2017-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 6-2: COSEM interface classes

Échange des données de comptage de l'électricité – La suite DLMS/COSEM –
Partie 6-2: Classes d'interfaces COSEM

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IEC 62056-6-2 ®
Edition 3.0 2017-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –

Part 6-2: COSEM interface classes

Échange des données de comptage de l'électricité – La suite DLMS/COSEM –

Partie 6-2: Classes d'interfaces COSEM

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220; 35.110; 91.140.50 ISBN 978-2-8322-4771-6

– 2 – IEC 62056-6-2:2017  IEC 2017
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and abbreviated terms . 17
3.1 Terms and definitions related to the Image transfer process (see 5.3.6) . 17
3.2 Terms and definitions related to the S-FSK PLC setup classes (see 5.9) . 18
3.3 Terms and definitions related to the PRIME NB OFDM PLC setup ICs (see
5.11) . 19
3.4 Terms and definitions related to ZigBee® (see 5.13) . 21
3.5 Terms and definitions related to Payment metering interface classes (see
5.5) . 22
3.6 Terms and definitions related to the Arbitrator IC (see 5.4.12) . 27
3.7 Abbreviated terms . 27
4 Basic principles . 31
4.1 General . 31
4.2 Referencing methods . 32
4.3 Reserved base_names for special COSEM objects . 33
4.4 Class description notation . 33
4.5 Common data types . 35
4.6 Data formats . 37
4.6.1 Date and time formats . 37
4.6.2 Floating point number formats . 39
4.7 The COSEM server model . 41
4.8 The COSEM logical device . 42
4.8.1 General . 42
4.8.2 COSEM logical device name (LDN) . 42
4.8.3 The “association view” of the logical device . 42
4.8.4 Mandatory contents of a COSEM logical device . 43
4.8.5 Management logical device. 43
4.9 Information security . 43
5 The COSEM interface classes . 44
5.1 Overview . 44
5.2 Interface classes for parameters and measurement data . 48
5.2.1 Data (class_id = 1, version = 0) . 48
5.2.2 Register (class_id = 3, version = 0) . 49
5.2.3 Extended register (class_id = 4, version = 0) . 53
5.2.4 Demand register (class_id = 5, version = 0) . 54
5.2.5 Register activation (class_id = 6, version = 0) . 57
5.2.6 Profile generic (class_id = 7, version = 1) . 59
5.2.7 Utility tables (class_id = 26, version = 0) . 64
5.2.8 Register table (class_id = 61, version = 0) . 65
5.2.9 Status mapping (class_id = 63, version = 0) . 67
5.2.10 Compact data . 69
5.3 Interface classes for access control and management . 77
5.3.1 Overview . 77
5.3.2 Client user identification . 78

5.3.3 Association SN (class_id = 12, version = 4) . 78
5.3.4 Association LN (class_id = 15, version = 3) . 83
5.3.5 SAP assignment (class_id = 17, version = 0) . 90
5.3.6 Image transfer . 90
5.3.7 Security setup (class_id = 64, version = 1) . 98
5.3.8 Push interface classes and objects . 105
5.3.9 COSEM data protection . 111
5.3.10 Function control (class_id: 122, version: 0) . 129
5.3.11 Array manager (class_id = 123, version = 0) . 131
5.4 Interface classes for time- and event bound control . 138
5.4.1 Clock (class_id = 8, version = 0) . 138
5.4.2 Script table (class_id = 9, version = 0) . 140
5.4.3 Schedule (class_id = 10, version = 0) . 142
5.4.4 Special days table (class_id = 11, version = 0) . 145
5.4.5 Activity calendar (class_id = 20, version = 0) . 146
5.4.6 Register monitor (class_id = 21, version = 0) . 149
5.4.7 Single action schedule (class_id = 22, version = 0) . 150
5.4.8 Disconnect control (class_id = 70, version = 0) . 151
5.4.9 Limiter (class_id = 71, version = 0) . 154
5.4.10 Parameter monitor (class_id = 65, version = 0) . 157
5.4.11 Sensor manager interface class . 158
5.4.12 Arbitrator . 162
5.4.13 Modelling examples: tariffication and billing . 166
5.5 Payment metering related interface classes . 168
5.5.1 Overview of the COSEM accounting model .
...