IEC 62386-252:2023

IEC 62386-252 ®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –
Part 252: Particular requirements – Energy reporting (device type 51)

Interface d'éclairage adressable numérique –
Partie 252: Exigences particulières – Collecte des données d'énergie (type de
dispositif 51)
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IEC 62386-252 ®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –

Part 252: Particular requirements – Energy reporting (device type 51)

Interface d'éclairage adressable numérique –

Partie 252: Exigences particulières – Collecte des données d'énergie (type de

dispositif 51)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50, 29.140.99 ISBN 978-2-8322-6784-4

– 2 – IEC 62386-252:2023  IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 General . 9
4.1 General . 9
4.2 Version number . 9
5 Electrical specification . 9
6 Bus power supply . 9
7 Transmission protocol structure . 9
8 Timing . 10
9 Method of operation . 10
9.1 General . 10
9.2 Memory banks . 10
9.2.1 General . 10
9.2.2 Accuracy of measurements . 10
9.2.3 Rounding of measurement values . 10
9.2.4 Refresh rate of memory bank values . 10
9.2.5 No overflow of counters . 10
9.2.6 Memory bank 202, active energy and power . 10
9.2.7 Memory bank 203, apparent energy and power . 12
9.2.8 Memory bank 204, load side energy and power . 13
10 Declaration of variables . 15
11 Definition of commands . 15
11.1 General . 15
11.2 Overview sheets . 15
11.3 Application extended commands . 16
11.4 Special commands . 16
11.4.1 General . 16
11.4.2 ENABLE DEVICE TYPE (data) . 16
Annex A (informative) Basic concept of energy flow . 17
A.1 General . 17
A.2 Single logical unit. 17
A.3 Multiple logical units . 18
Bibliography . 20

Figure 1 – IEC 62386 graphical overview . 6
Figure A.1 – Example of single logical unit . 17
Figure A.2 – Example of control gear with DT1 and other power supplies . 18
Figure A.3 – Example with multiple logical units, DT1 and other power supplies . 19

Table 1 – Memory bank 202, active energy and power . 11
Table 2 – Memory bank 203, apparent energy and power (optional) . 12
Table 3 – Memory bank 204, load side energy and power (optional) . 14
Table 4 – Declaration of variables . 15
Table 5 – Standard commands. 16

– 4 – IEC 62386-252:2023  IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 252: Particular requirements – Energy reporting (device type 51)

FOREWORD
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