IEC 62056-6-2:2023

IEC 62056-6-2 ®
Edition 4.0 2023-09
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 4.0 2023-09
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 978-2-8322-7344-9

– 2 – IEC 62056-6-2:2023  IEC 2023
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 16
2 Normative references . 16
3 Terms, definitions and abbreviated terms . 18
3.1 Terms and definitions related to the Image transfer process (see 4.4.6) . 19
3.2 Terms and definitions related to the S-FSK PLC setup classes (see 4.10) . 20
3.3 Terms and definitions related to the PRIME NB OFDM PLC setup ICs (see
4.12) . 21
3.4 Terms and definitions related to the ISO/IEC 14908 setup ICs (see 4.18) . 22
3.5 Terms and definitions related to ZigBee® (see 4.15) . 23
3.6 Terms and definitions related to Payment metering interface classes (see
4.6) . 24
3.7 Terms and definitions related to the Arbitrator IC (see 4.5.12) . 28
3.8 Abbreviated terms . 29
4 The COSEM interface classes . 33
4.1 Basic principles . 33
4.1.1 General . 33
4.1.2 Referencing methods . 34
4.1.3 Reserved base_names for special COSEM objects . 35
4.1.4 Class description notation . 35
4.1.5 Common data types . 38
4.1.6 Data formats . 39
4.1.7 The COSEM server model . 44
4.1.8 The COSEM logical device . 45
4.1.9 Information security . 46
4.2 Overview of the COSEM interface classes . 47
4.3 Interface classes for parameters and measurement data . 53
4.3.1 Data (class_id = 1, version = 0) . 53
4.3.2 Register (class_id = 3, version = 0) . 54
4.3.3 Extended register (class_id = 4, version = 0) . 58
4.3.4 Demand register (class_id = 5, version = 0) . 60
4.3.5 Register activation (class_id = 6, version = 0) . 64
4.3.6 Profile generic (class_id = 7, version = 1) . 66
4.3.7 Utility tables (class_id = 26, version = 0) . 72
4.3.8 Register table (class_id = 61, version = 0) . 73
4.3.9 Status mapping (class_id = 63, version = 0) . 76
4.3.10 Compact data (class_id: 62, version: 1) . 77
4.4 Interface classes for access control and management . 85
4.4.1 Overview . 85
4.4.2 Client user identification . 85
4.4.3 Association SN (class_id = 12, version = 4) . 86
4.4.4 Association LN (class_id = 15, version = 3) . 91
4.4.5 SAP assignment (class_id = 17, version = 0) . 98
4.4.6 Image transfer (class_id = 18, version = 0) . 98
4.4.7 Security setup (class_id = 64, version = 1) . 106
4.4.8 Push interface classes and objects . 112

4.4.9 COSEM data protection (class_id = 30, version = 0) . 125
4.4.10 Function control (class_id: 122, version: 0) . 140
4.4.11 Array manager (class_id = 123, version = 0) . 142
4.4.12 Communication port protection (class_id = 124, version = 0) . 147
4.5 Interface classes for time- and event bound control . 150
4.5.1 Clock (class_id = 8, version = 0) . 150
4.5.2 Script table (class_id = 9, version = 0) . 154
4.5.3 Schedule (class_id = 10, version = 0) . 155
4.5.4 Special days table (class_id = 11, version = 0) . 158
4.5.5 Activity calendar (class_id = 20, version = 0) . 160
4.5.6 Register monitor (class_id = 21, version = 0) . 164
4.5.7 Single action schedule (class_id = 22, version = 0) . 165
4.5.8 Disconnect control (class_id = 70, version = 0) . 166
4.5.9 Limiter (class_id = 71, version = 0) . 170
4.5.10 Parameter monitor (class_id = 65, version = 1) . 172
4.5.11 Sensor manager (class_id = 67, version = 0) . 176
4.5.12 Arbitrator (class_id = 68, version = 0) . 180
4.5.13 Modelling examples: tariffication and billing . 184
4.6 Payment metering related interface classes . 186
4.6.1 Overview of the COSEM accounting model . 186
4.6.2 Account (class_id = 111, version = 0) . 188
4.6.3 Credit interface class (class_id = 112, version = 0) . 197
4.6.4 Charge (class_id = 113, version = 0) . 208
4.6.5 Token gateway (class_id = 115, version = 0) . 214
4.7 Interface classes for setting up data exchange via local ports and modems . 216
4.7.1 IEC local port setup (class_id = 19, version = 1) . 216
4.7.2 IEC HDLC setup (class_id = 23, version = 1) . 218
4.7.3 IEC twisted pair (1) setup (class_id = 24, version = 1) . 220
4.7.4 Modem configuration (class_id = 27, version = 1) . 223
4.7.5 Auto answer (class_id = 28, version = 2) . 224
4.7.6 Auto connect (class_id = 29, version = 2) . 228
4.7.7 GPRS modem setup (class_id = 45, version = 0) . 230
4.7.8 GSM diagnostic (class_id: 47, version: 2) . 231
4.7.9 LTE monitoring (class_id
...