EN IEC 62386-251:2023

Digital addressable lighting interface - Part 251: Particular requirements - Memory bank 1 extension (device type 50)

IEC 62386-251:2023 specifies an extension to memory bank 1 to enable asset management functionality. This document builds on the digital addressable lighting interface as specified in the IEC 62386 series. This document is only applicable to control gear complying with IEC 62386-102.

Digital adressierbare Schnittstelle für die Beleuchtung - Teil 251: Besondere Anforderungen - Erweiterung der Speicherbank 1 (Gerätetyp 50)

Interface d'éclairage adressable numérique - Partie 251: Exigences particulières - Extension du bloc de mémoire 1 (type de dispositif 50)

L'IEC 62386-251:2023 spécifie une extension du bloc de mémoire 1 pour activer la fonctionnalité de gestion des ressources. Le présent document enrichit l'interface d'éclairage adressable numérique spécifiée dans la série IEC 62386. Ce document ne s'applique qu'aux appareillages de commande conformes à la norme IEC 62386-102.

Digitalni naslovljivi vmesnik za razsvetljavo - 251. del: Posebne zahteve - Razširitev 1 pomnilniške banke (naprava tipa 50) (IEC 62386-251:2023)

Standard IEC 62386-251:2023 določa razširitev 1 pomnilniške banke za omogočanje funkcije upravljanja sredstev. Ta dokument temelji na digitalno naslovljivem vmesniku za razsvetljavo, kot je določeno v skupini standardov IEC 62386.
Uporablja se samo za krmilno opremo, ki je skladna s standardom IEC 62386-102.

General Information

• Status: Published
• Publication Date: 18-May-2023
• ICS: 29.140.50 - Lighting installation systems
• ICS: 29.140.99 - Other standards related to lamps
• Technical Committee: CLC/TC 34 - 'Lamps and related equipment
• Drafting Committee: IEC/TC 34 - IEC_TC_34
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 19-May-2023
• Completion Date: 19-May-2023
• Ref Project: SIST EN IEC 62386-251:2023 - Digital addressable lighting interface - Part 251: Particular requirements - Memory bank 1 extension (Device Type 50) (IEC 62386-251:2023)

Overview

EN IEC 62386-251:2023 (IEC 62386-251:2023) specifies a Memory Bank 1 extension (Device Type 50) for the Digital Addressable Lighting Interface (DALI). This part extends the IEC 62386 series to enable asset management functionality for compatible lighting control gear. It is intended to be used in conjunction with IEC 62386-101 and IEC 62386-102, and applies only to control gear complying with IEC 62386-102.

Key topics and technical requirements

• Memory bank extension: Defines additional fields in Memory Bank 1 to store luminaire and asset data (see “Memory bank 1, luminaire information” in the standard).
• Method of operation: Specifies how the extended memory bank is accessed, written and managed in runtime.
• Transmission protocol structure and timing: Aligns with IEC 62386 bus messaging and timing rules for reliable communication over the lighting control bus.
• Declaration of variables and commands: Formalizes variables and command sets (including special commands such as ENABLE DEVICE TYPE) required to implement the extension.
• Electrical and bus power requirements: References electrical specification and bus power behaviour compatible with existing IEC 62386 control gear.
• Memory bank writing rules: Describes constraints and behaviours for updating memory bank content to support secure and predictable asset management.

Practical applications

• Asset management for lighting installations: Enables tracking of luminaire data (model, serial, commissioning info) stored directly on control gear for inventory, maintenance and lifecycle management.
• Smart building and facility management: Facilitates integration of lighting assets into building management systems and CMMS (computerized maintenance management systems).
• Manufacturers and OEMs: Use the standard to implement standardized memory structures and commands for interoperable control gear (Device Type 50).
• System integrators and specifiers: Rely on the extension to specify devices capable of holding and reporting asset information on the DALI bus.
• Certification and test labs: Validate compliance with memory bank behavior, command implementation and bus interoperability.

Related standards

• EN IEC 62386-101:2022 - General requirements for system components (required reference)
• EN IEC 62386-102:2022 - General requirements for control gear (mandatory applicability)
• Other IEC 62386 parts (e.g., firmware transfer and wireless components) provide complementary system-level requirements.

By standardizing Memory Bank 1 extension (Device Type 50), EN IEC 62386-251:2023 improves interoperability and enables consistent asset management features across compliant lighting control gear-beneficial for manufacturers, integrators and facility operators implementing digital lighting control systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2023
Digitalni naslovljivi vmesnik za razsvetljavo - 251. del: Posebne zahteve -
Razširitev 1 pomnilniške banke (naprava tipa 50) (IEC 62386-251:2023)
Digital addressable lighting interface - Part 251: Particular requirements - Memory bank
1 extension (Device Type 50) (IEC 62386-251:2023)
Digital adressierbare Schnittstelle für die Beleuchtung - Teil 251: Besondere
Anforderungen - Erweiterung der Speicherbank 1 (Gerätetyp 50) (IEC 62386-251:2023)
Interface d'éclairage adressable numérique - Partie 251: Exigences particulières -
Extension du bloc de mémoire 1 (type de dispositif 50) (IEC 62386-251:2023)
Ta slovenski standard je istoveten z: EN IEC 62386-251:2023
ICS:
29.140.50 Instalacijski sistemi za Lighting installation systems
razsvetljavo
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62386-251

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2023
ICS 29.140.50; 29.140.99
English Version
Digital addressable lighting interface - Part 251: Particular
requirements - Memory bank 1 extension (device type 50)
(IEC 62386-251:2023)
Interface d'éclairage adressable numérique - Partie 251: Digital adressierbare Schnittstelle für die Beleuchtung - Teil
Exigences particulières - Extension du bloc de mémoire 1 251: Besondere Anforderungen - Erweiterung der
(type de dispositif 50) Speicherbank 1 (Gerätetyp 50)
(IEC 62386-251:2023) (IEC 62386-251:2023)
This European Standard was approved by CENELEC on 2023-05-17. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62386-251:2023 E

European foreword
The text of document 34/1019/FDIS, future edition 1 of IEC 62386-251, prepared by IEC/TC 34
"Lighting" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-02-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-05-17
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document is read in conjunction with EN IEC 62386-101 and EN IEC 62386-102.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62386-251:2023 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 62386-101 2022 Digital addressable lighting interface - Part EN IEC 62386-101 2022
101: General requirements - System
components
IEC 62386-102 2022 Digital addressable lighting interface - Part EN IEC 62386-102 2022
102: General requirements - Control gear
ANSI/IEC RP-8-18 2018 American National Standard - -
Recommended Practice for Design and
Maintenance of Roadway and Parking
Facility Lighting
IEC 62386-251 ®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –

Part 251: Particular requirements – Memory bank 1 extension (device type 50)

Interface d'éclairage adressable numérique –

Partie 251: Exigences particulières – Extension du bloc de mémoire 1 (type de

dispositif 50)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50, 29.140.99 ISBN 978-2-8322-6783-7

– 2 – IEC 62386-251:2023  IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 7
4.1 General . 7
4.2 Version number . 7
5 Electrical specification . 8
6 Bus power supply . 8
7 Transmission protocol structure . 8
8 Timing . 8
9 Method of operation . 8
9.1 General . 8
9.2 Memory banks . 8
9.2.1 General . 8
9.2.2 Memory bank writing . 8
9.2.3 Memory bank 1 . 8
10 Declaration of variables . 10
11 Definition of commands . 11
11.1 General . 11
11.2 Overview sheets . 11
11.3 Application extended commands . 11
11.4 Special commands . 11
11.4.1 General . 11
11.4.2 ENABLE DEVICE TYPE (data) . 11

Figure 1 – IEC 62386 graphical overview . 5

Table 1 – Memory bank 1, luminaire information . 9
Table 2 – Declaration of variables . 10
Table 3 – Definition of commands . 11

IEC 62386-251:2023  IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 251: Particular requirements –
Memory bank 1 extension (device type 50)

FOREWORD
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