IEC 62386-105:2020

Digital addressable lighting interface - Part 105: Particular requirements for control gear and control devices - Firmware Transfer

IEC 62386-105:2020 applies to control gear and control devices.
Typically, a bus unit according to IEC 62386 (all parts) contains firmware. There are circumstances where it might be necessary to change the firmware after production or shipping of the product. For example if the bus unit does not operate as intended. In such a case, a firmware update of a bus unit via the interface is beneficial.
This firmware update process is primarily designed to be a bug fix process, not a feature extension process. Nevertheless the firmware update process can be used for feature extensions. But it is important that the risk of negative effects to the complete system is considered in detail.

Interface d'éclairage adressable numérique - Partie 105: Exigences particulières pour appareillages et dispositifs de commande - Transfert du microprogramme

L’IEC 62386-105:2020 s’applique aux appareillages et dispositifs de commande.
Un appareillage de bus conforme à l'IEC 62386 (toutes les parties) contient généralement un microprogramme. Il peut être nécessaire dans certaines circonstances de modifier ce microprogramme après la production ou l’expédition du produit, par exemple lorsque l’appareillage de bus ne fonctionne pas comme prévu. Dans ce cas, il est bénéfique de mettre à jour le microprogramme de l’appareillage de bus par l’intermédiaire de l’interface.
Ce processus de mise à jour du microprogramme est principalement conçu comme un processus de correction des bogues et non comme un processus d'extension de caractéristiques. Le processus de mise à jour du microprogramme peut néanmoins être utilisé pour l’extension des caractéristiques. Il est important cependant d'étudier en détail le risque d’effets négatifs sur le système entier.

General Information

• Status: Published
• Publication Date: 25-Mar-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.140.50 - Lighting installation systems
• ICS: 29.140.99 - Other standards related to lamps
• Technical Committee: TC 34 - Lighting
• Drafting Committee: WG 11 - TC 34/WG 11
• Current Stage: PPUB - Publication issued
• Start Date: 10-Apr-2020
• Completion Date: 26-Mar-2020

Standards Content (Sample)

IEC 62386-105 ®
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –
Part 105: Particular requirements for control gear and control devices –
Firmware transfer
Interface d’éclairage adressable numérique –
Partie 105: Exigences particulières pour appareillages et dispositifs de
commande – Transfert du microprogramme

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IEC 62386-105 ®
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface – –

Part 105: Particular requirements for control gear and control devices –

Firmware transfer
Interface d’éclairage adressable numérique – –

Partie 105: Exigences particulières pour appareillages et dispositifs de

commande – Transfert du microprogramme

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50; 29.140.99 ISBN 978-2-8322-8020-1

– 2 – IEC 62386-105:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 8
4.1 General . 8
4.2 Transmitters and receivers in bus units . 8
4.3 Logical units in a bus unit . 8
5 Electrical specification . 8
6 Interface power supply . 8
7 Transmission protocol structure . 8
7.1 General . 8
7.2 32 bit forward frame encoding . 9
8 Timing . 9
9 Method of operation . 9
9.1 General . 9
9.2 Data transmission . 9
9.3 Duration . 9
9.4 Security . 10
9.5 Firmware update features . 10
9.6 Update process . 10
9.6.1 Start firmware update . 10
9.6.2 Data transfer . 10
9.6.3 Persistent variables during firmware update . 12
9.6.4 Firmware version number . 13
9.6.5 Firmware update in a system . 13
9.6.6 Error recovery. 13
10 Declaration of variables . 13
11 Definition of commands . 14
11.1 General . 14
11.2 Overview sheets . 14
11.3 Commands . 16
11.3.1 General . 16
11.3.2 Standard commands . 16
11.3.3 Data transfer commands . 17
Annex A (normative) Update file description . 19
Annex B (normative) CRC16 Calculation . 20
Annex C (informative) Firmware update process example . 21
Annex D (informative) Firmware update management check sheet . 23

Figure 1 – IEC 62386 graphical overview . 6
Figure C.1 – Example of a firmware update process . 21

Table 1 – 32-bit command frame encoding . 9
Table 2 – Firmware update features . 10
Table 3 – Block 0 definitions . 11
Table 4 – Block 1.n definitions . 12
Table 5 – Declaration of additional variables . 14
Table 6 – Standard commands for bus units with firmware update capability . 15
Table 7 – Data transfer commands for bus units with firmware update capability . 15

– 4 – IEC 62386-105:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 105: Particular requirements for control gear and control devices –
Firmware transfer
FOREWORD
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