IEC 62056-6-2:2013

Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes

IEC 62056-6-2:2013 specifies a model of a meter as it is seen through its communication interface(s). Generic building blocks are defined using object-oriented methods, in the form of interface classes to model meters from simple up to very complex functionality.

Echange des données dans les équipements de comptage de l'énergie électrique - La suite DLMS/COSEM - Partie 6-2: Classes d'interfaces COSEM

La CEI 62056-6-2:2013 spécifie un modèle d'un compteur tel qu'il est vu à travers son/ses interface(s) de communication. Des blocs génériques de base sont définis à l'aide de méthodes orientées objet, sous la forme de classes d'interfaces pour modéliser les compteurs à partir d'une fonctionnalité simple jusqu'à une fonctionnalité très complexe.

General Information

• Status: Published
• Publication Date: 29-May-2013
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 35.110 - Networking
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: TC 13 - Electrical energy measurement and control
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 23-Feb-2016

Relations

• Revised: IEC 62056-6-2:2016 - Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62056-6-2
®

Edition 1.0 2013-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Electricity metering data exchange – The DLMS/COSEM suite –
Part 6-2: COSEM interface classes

Échange de données dans les équipements de comptage de l'énergie
électrique – La suite DLMS/COSEM –
Partie 6-2: Classes d'interfaces COSEM

IEC 62056-6-2:2013

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IEC 62056-6-2

®


Edition 1.0 2013-05




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Electricity metering data exchange – The DLMS/COSEM suite –

Part 6-2: COSEM interface classes




Échange de données dans les équipements de comptage de l'énergie

électrique – La suite DLMS/COSEM –

Partie 6-2: Classes d'interfaces COSEM















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XH


ICS 17.220; 35.110; 91.140.50 ISBN 978-2-83220-822-9



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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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CONTENTS
FOREWORD. 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Abbreviations . 12
4 Basic principles . 14
4.1 General . 14
4.2 Referencing methods . 15
4.3 Reserved base_names for special COSEM objects . 15
4.4 Class description notation . 15
4.5 Common data types . 18
4.6 Data formats . 19
4.6.1 Date and time formats . 19
4.6.2 Floating point number formats . 21
4.7 The COSEM server model . 23
4.8 The COSEM logical device . 24
4.8.1 General . 24
4.8.2 COSEM logical device name . 24
4.8.3 The “association view” of the logical device . 24
4.8.4 Mandatory contents of a COSEM logical device . 24
4.8.5 Management logical device . 25
4.9 Data security . 25
5 The COSEM interface classes . 25
5.1 Overview . 25
5.2 Interface classes for parameters and measurement data . 27
5.2.1 Data (class_id: 1, version: 0) . 27
5.2.2 Register (class_id: 3, version: 0) . 28
5.2.3 Extended register (class_id: 4, version: 0) . 32
5.2.4 Demand register (class_id: 5, version: 0) . 33
5.2.5 Register activation (class_id: 6, version: 0) . 36
5.2.6 Profile generic (class_id: 7, version: 1) . 38
5.2.7 Utility tables (class_id: 26, version: 0) . 43
5.2.8 Register table (class_id: 61, version: 0) . 44
5.2.9 Status mapping (class_id: 63, version: 0). 47
5.3 Interface classes for access control and management . 48
5.3.1 Association SN (class_id: 12, version: 2) . 48
5.3.2 Association LN (class_id: 15, version: 1) . 52
5.3.3 SAP assignment (class_id: 17, version: 0) . 58
5.3.4 Image transfer (class_id: 18, version: 0) . 59
5.3.5 Security setup (class_id: 64, version: 0) . 67
5.4 Interface classes for time- and event bound control . 68
5.4.1 Clock (class_id: 8, version: 0) . 68
5.4.2 Script table (class_id: 9, version: 0) . 71
5.4.3 Schedule (class_id: 10, version: 0) . 72
5.4.4 Special days table (class_id: 11, version: 0) . 75
5.4.5 Activity calendar (class_id: 20, version: 0) . 76

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62056-6-2 © IEC:2013 – 3 –
5.4.6 Register monitor (class_id: 21, version: 0) . 79
5.4.7 Single action schedule (class_id: 22, version: 0) . 80
5.4.8 Disconnect control (class_id: 70, version: 0) . 81
5.4.9 Limiter (class_id: 71, version: 0) . 84
5.4.10 Sensor manager interface class (class_id:67, version: 0) . 86
5.5 Interface classes for setting up data exchange via local ports and modems . 90
5.5.1 IEC local port setup (class_id: 19, version: 1) . 90
5.5.2 IEC HDLC setup (class_id: 23, version: 1) . 92
5.5.3 IEC twisted pair (1) setup (class_id: 24, version: 0) . 94
5.5.4 Modem configuration (class_id: 27, version: 1) . 95
5.5.5 Auto answer (class_id: 28, version: 0) . 96
5.5.6 Auto connect (class_id: 29, version: 1) . 98
5.6 Interface classes for setting up data exchange via M-Bus . 99
5.6.1 M-Bus slave port setup (class_id: 25, version: 0) . 99
5.6.2 M-Bus client (class_id: 72, version: 0) . 100
5.6.3 Wireless Mode Q channel (class_id: 73, version: 1) . 105
5.6.4 M-Bus master port setup (class_id: 74, version: 0) . 105
5.7 Interface classes for setting up data exchange over the Internet . 106
5.7.1 TCP-UDP setup (class_id: 41, version: 0) . 106
5.7.2 IPv4 setup (class_id: 42, version: 0) . 107
5.7.3 MAC address setup (class_id: 43, version: 0) . 111
5.7.4 PPP setup (class_id: 44, version: 0) . 111
5.7.5 GPRS modem setup (class_id: 45, version: 0) . 115
5.7.6 SMTP setup (class_id: 46, version: 0) . 116
5.8 Interface classes for setting up data exchange using S-FSK PLC . 117
5.8.1 General . 117
5.8.2 Definitions and abbreviations related to the S-FSK PLC profile . 117
5.8.3 Overview . 119
5.8.4 S-FSK Phy&MAC set-up (class_id: 50, version: 1) . 121
5.8.5 S-FSK Active initiator (class_id: 51, version: 0) . 125
5.8.6 S-FSK MAC synchronization timeouts (class_id: 52, version: 0) . 127
5.8.7 S-FSK MAC counters (class_id: 53, version: 0) . 129
5.8.8 IEC 61334-4-32 LLC setup (class_id: 55, version: 1) . 133
5.8.9 S-FSK Reporting system list (class_id: 56, version: 0) . 134
5.9 Interface classes for setting up the LLC layer for ISO/IEC 8802-2 . 135
5.9.1 General . 135
5.9.2 Definitions related to the ISO/IEC 8802-2 LLC layer . 135
5.9.3 ISO/IEC 8802-2 LLC Type 1 setup (class_id: 57, version: 0) . 135
5.9.4 ISO/IEC 8802-2 LLC Type 2 setup (class_id: 58, version: 0) . 136
5.9.5 ISO/IEC 8802-2 LLC Type 3 setup (class_id: 59, version: 0) . 137
5.10 Maintenance of the interface classes . 140
5.10.1 New versions of interface classes . 140
5.10.2 New interface classes . 140
5.10.3 Removal of interface classes . 140
6 Relation to OBIS . 140
6.1 General . 140
6.2 Abstract COSEM objects. 141
6.2.1 Use of value group C . 141
6.2.2 Data of historical billing periods . 142

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6.2.3 Billing period values / reset counter entries . 143
6.2.4 Clock objects (class_id: 8) . 144
6.2.5 Modem configuration and related objects . 144
6.2.6 Script table objects (class_id: 9) . 144
6.2.7 Special days table objects (class_id: 11) . 145
6.2.8 Schedule objects (class_id: 10) . 145
6.2.9 Activity calendar objects (class_id: 20) . 145
6.2.10 Register activation objects (class_id: 6) . 146
6.2.11 Single action schedule objects (class_id: 22) . 146
6.2.12 Register monitor objects (class_id: 21) . 146
6.2.13 Limiter objects (class_id: 71) . 146
6.2.14 IEC local port setup objects (class_id: 19) . 146
6.2.15 Standard readout profile objects (class_id: 7) . 146
6.2.16 IEC HDLC setup objects (class_id: 23) . 147
6.2.17 IEC twisted pair (1) setup objects (class_id: 24) . 147
6.2.18 Objects related to data exchange over M-Bus . 147
6.2.19 Objects to set up data exchange over the Internet . 148
6.2.20 Objects for setting up data exchange using S-FSK PLC . 149
6.2.21 Objects for setting up the ISO/IEC 8802-2 LLC layer . 149
6.2.22 Association objects (class_id: 12, 15) . 150
6.2.23 SAP assignment object (class_id: 17) . 150
6.2.24 COSEM logical device name object . 150
6.2.25 Security setup and frame counter objects (class_id: 64) . 150
6.2.26 Image transfer objects (class_id: 18) . 151
6.2.27 Utility table objects (class_id: 26) . 151
6.2.28 Device ID objects . 152
6.2.29 Metering point ID objects . 152
6.2.30 Parameter changes and calibration objects . 152
6.2.31 I/O control signal objects . 152
6.2.32 Disconnect control objects (class_id: 70) . 153
6.2.33 Status of internal control signals objects . 153
6.2.34 Internal operating status objects . 153
6.2.35 Battery entries objects . 154
6.2.36 Power failure monitoring objects . 154
6.2.37 Operating time objects . 155
6.2.38 Environment related parameters objects . 155
6.2.39 Status register objects . 155
6.2.40 Event code objects . 155
6.2.41 Communication port log parameter objects . 156
6.2.42 Consumer message objects . 156
6.2.43 Currently active tariff objects . 156
6.2.44 Event counter objects . 156
6.2.45 Error register objects . 156
6.2.46 Alarm registers and alarm filters objects . 157
6.2.47 General list objects (class_id: 7) . 157
6.2.48 Event log objects . 158
6.2.49 Inactive objects . 158
6.3 Electricity related COSEM objects . 158
6.3.1 Value group D definitions . 158

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62056-6-2 © IEC:2013 – 5 –
6.3.2 Electricity ID numbers . 159
6.3.3 Billing period values / reset counter entries . 159
6.3.4 Other electricity related general purpose objects . 159
6.3.5 Measurement algorithm . 160
6.3.6 Metering point ID (electricity related) . 161
6.3.7 Electricity related status objects . 162
6.3.8 Electricity related list objects (class_id: 7) . 162
6.3.9 Threshold values . 162
6.3.10 Register monitor objects (class_id: 21) . 163
6.4 Coding of OBIS identifications . 163
7 Previous versions of interface classes . 164
7.1 General . 164
7.2 Profile generic (class_id: 7, version: 0) . 164
7.3 Association SN (class_id: 12, version: 0) . 168
7.4 Association SN (class_id: 12, version: 1) . 170
7.5 Association LN (class_id: 15, version: 0) . 173
7.6 IEC local port setup (class_id: 19, version: 0) . 178
7.7 IEC HDLC setup, (class_id: 23, version: 0) . 179
7.8 PSTN modem configuration (class_id: 27, version: 0) . 181
7.9 PSTN auto dial (class_id: 29, version: 0) . 182
7.10 S-FSK Phy&MAC setup (class_id: 50, version: 0) . 184
7.11 S-FSK IEC 61334-4-32 LLC setup (class_id: 55, version: 0) . 188
Annex A (informative) Significant technical changes with respect to IEC 62056-62 . 190
Bibliography . 193
Index . 195

Figure 1 – An interface class and its instances . 14
Figure 2 – The COSEM server model . 23
Figure 3 – Combined metering device . 23
Figure 4 – Overview of the interface classes – Part 1. 26
Figure 5 – Overview of the interface classes – Part 2. 27
Figure 6 – The time attributes when measuring sliding demand . 33
Figure 7 – The attributes in the case of block demand . 33
Figure 8 – The attributes in the case of sliding demand (number of periods = 3) . 34
Figure 9 – The meaning of the definitions concerning the Image . 60
Figure 10 – The Image Read and the Image Transfer services . 60
Figure 11 – Image transfer process flow chart . 64
Figure 12 – The generalized time concept . 69
Figure 13 – State diagram of the Disconnect control IC . 82
Figure 14 – Definition of upper and lower thresholds . 90
Figure 15 – Object model of DLMS/COSEM servers . 119
Figure 16 – Data of historical billing periods – example with module 12, VZ = 5 . 143

Table 1 – Reserved base_names for SN referencing . 15
Table 2 – Common data types . 18
Table 3 – Enumerated values for physical units . 30

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Table 4 – Examples for scaler_unit. 32
Table 5 – Schedule . 72
Table 6 – Special days table . 73
Table 7 – Disconnect control IC – states and state transitions . 83
Table 8 – Explicit presentation of threshold value arrays . 90
Table 9 – Explicit presentation of action_sets . 90
Table 10 – Mapping IEC 61334-5-512 MIB variables to COSEM IC attributes / methods . 120
Table 11 – MAC addresses in the S-FSK profile . 125
Table 12 – Use of value group C for abstract objects in the COSEM context . 142
Table 13 – Representation of various values by appropriate ICs . 158
Table 14 – Measuring algorithms – enumerated values . 160
Table 15 – Threshold objects, electricity . 163
Table 16 – Register monitor objects, electricity . 163

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRICITY METERING DATA EXCHANGE –
THE DLMS/COSEM SUITE –

Part 6-2: COSEM interface classes


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