IEC 62386-253:2023

IEC 62386-253
®

Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Digital addressable lighting interface –
Part 253: Particular requirements – Diagnostics and maintenance (device
type 52)

Interface d'éclairage adressable numérique –
Partie 253: Exigences particulières – Diagnostic et maintenance (type de
dispositif 52)
IEC 62386-253:2023-04(en-fr)

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IEC 62386-253

®


Edition 1.0 2023-04




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside










Digital addressable lighting interface –

Part 253: Particular requirements – Diagnostics and maintenance (device

type 52)



Interface d'éclairage adressable numérique –

Partie 253: Exigences particulières – Diagnostic et maintenance (type de


dispositif 52)












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE





ICS 29.140.50, 29.140.99 ISBN 978-2-8322-6787-5




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– 2 – IEC 62386-253:2023  IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 General . 8
4.1 General . 8
4.2 Version number . 9
4.3 Restricting device type support . 9
5 Electrical specification . 9
6 Bus power supply . 9
7 Transmission protocol structure . 9
8 Timing . 9
9 Method of operation . 9
9.1 General . 9
9.2 Memory banks . 9
9.2.1 General . 9
9.2.2 Accuracy of measurements . 9
9.2.3 Rounding of measurement values . 9
9.2.4 Refresh rate of memory bank values . 10
9.2.5 No overflow of counters . 10
9.2.6 Failure condition flags and failure condition counters related to control
gear . 10
9.2.7 Behaviour of "controlGearFailure" . 10
9.2.8 Failure condition flags and failure condition counters related to light
source . 10
9.2.9 Behaviour of "lampFailure" . 11
9.2.10 Hold-off time for failure condition flags . 11
9.2.11 Memory bank 205, control gear diagnostics and maintenance . 11
9.2.12 Memory bank 206, light source diagnostics and maintenance . 19
9.2.13 Memory bank 207, luminaire maintenance data . 23
10 Declaration of variables . 24
11 Definition of commands . 25
11.1 General . 25
11.2 Overview sheets . 25
11.3 Application extended commands . 25
11.4 Special commands . 25
11.4.1 General . 25
11.4.2 ENABLE DEVICE TYPE (data) . 25
Bibliography . 26

Figure 1 – IEC 62386 graphical overview . 6

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IEC 62386-253:2023  IEC 2023 – 3 –
Table 1 – Failure condition flags and failure condition counters related to control gear . 10
Table 2 – Failure condition flags and failure condition counters related to light source . 10
Table 3 – Memory bank 205, control gear diagnostics and maintenance . 12
Table 4 – Memory bank 206, light source diagnostics and maintenance . 19
Table 5 – Memory bank 207, luminaire maintenance data . 23
Table 6 – Declaration of variables . 25
Table 7 – Commands . 25

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– 4 – IEC 62386-253:2023  IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 253: Particular requirements –
Diagnostics and maintenance (device type 52)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62386-253 has been prepared by IEC technical committee 34: Lighting. It is an International
Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
34/1021/FDIS 34/1042/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

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IEC 62386-253:2023  IEC 2023 – 5 –
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
This Part 253 of IEC 62386 is intended to be used in conjunction with:
• Part 101, which contains general requirements for system components;
• Part 102, which contains general requirements for control gear.
A list of all parts in the IEC 62386 series, published under the general title Digital addressable
lighting interface, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

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– 6 – IEC 62386-253:2023  IEC 2023
INTRODUCTION
IEC 62386 contains several parts, referred to as series. The IEC 62386 series specifies a bus
system for control by digital signals of electronic lighting equipment. The IEC 62386-1xx series
includes the basic specifications. Part 101 contains general requirements for system
components, Part 102 extends this information with general requirements for control gear and
Part 103 extends it further with general requirements for control devices. Part 104 and Part 105
can be applied to control gear or control devices. Part 104 gives requirements for wireless and
alternative wired system components. Part 105 describes firmware transfer. Part 150 gives
requirements for an auxiliary power supply which can be stand-alone, or built into control gear
or control devices.
The IEC 62386-2xx series extends the general requirements for control gear with lamp specific
extensions (mainly for backward compatibility with Edition 1 of IEC 62386) and with control gear
specific features.
The IEC 62386-3xx series extends the general requirements for control devices with input
device specific extensions describing the instance types as well as some common features that
can be combined with multiple instance types.
This first edition of IEC 62386-253 is intended to be used in conjunction with
IEC 62386-101:2022 and IEC 62386-102:2022. The division of IEC 62386 into separately
published parts provides for ease of future amendments and revisions. Additional requirements
will be added as and when a need for them is recognized.
The setup of the standards is graphically represented in Figure 1 below.

Figure 1 – IEC 62386 graphical overview
When this part of IEC 62386 refers to any of the clauses of the IEC 62386-1xx series, the extent
to which such a clause is applicable is specified. The other parts also include additional
requirements, as necessary.
All numbers used in this document are decimal numbers unless otherwise noted. Hexadecimal
numbers are given in the format 0xVV, where VV is the value. Binary numbers are given in the
format XXXXXXXXb or in the format XXXX XXXX, where X is 0 or 1; "x" in binary numbers
means "don't care".

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IEC 62386-253:2023  IEC 2023 – 7 –
The following typographic expressions are used:
Variables: "variableName" or "variableName[3:0]", giving only bits 3 to 0 of "variableName".
Range of values: [lowest, highest];
Command: "COMMAND NAME".

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– 8 – IEC 62386-253:2023  IEC 2023
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 253: Particular requirements –
Diagnostics and maintenance (device type 52)



1 Scope
This part of IEC 62386 specifies the information related to diagnostics and maintenance
information accessible through memory banks. This document builds on the digital addressable
lighting interface as specified in the IEC 62386 series, by adding specific requirements for data
exchange. The information given for light sources in this document is specific to LED light
sources.
This document is only applicable to control gear complying with IEC 62386-102.
2 Normative references
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.
IEC 62386-101:2022, Digital addressable lighting interface – Part 101: General requirements –
System components
IEC 62386-102:2022, Digital addressable lighting interface – Part 102: General requirements –
Control gear
IEC 62722-2-1:2023, Luminaire performance – Part 2-1: Particular requirements – LED
luminaires
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62386-102 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General
4.1 General
The requirements of IEC 62386-102:2022, Clause 4 apply, with the restrictions, changes and
additions identified below.

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IEC 62386-253:2023  IEC 2023 – 9 –
4.2 Version number
In IEC 62386-102:2022, 4.2, "102" shall be replaced by "253", "version number" shall be
replaced by "extended version number" and "versionNumber" shall be replaced by
"extendedVersionNumber".
4.3 Restricting device type support
It is recommended that a control gear supporting device type 52 according to this document,
should not support device type 16 (see IEC 62386-217) or device type 21 (see IEC 62386-222).
NOTE This document includes thermal gear information, similar to that given in IEC 62386-217, and thermal lamp
information, similar to that given in IEC 62386-222. This document also contains additional information not contained
in IEC 62386-217 or IEC 62386-222.
5 Electrical specification
The requirements of IEC 62386-102:2022, Clause 5 apply.
6 Bus power supply
The requirements of IEC 62386-102:2022, Clause 6 apply.
7 Transmission protocol structure
The requirements of IEC 62386-102:2022, Clause 7 apply.
8 Timing
The requirements of IEC 62386-102:2022, Clause 8 apply.
9 Method of operation
9.1 General
The requirements of IEC 62386-102:2022, Clause 9 apply with the following additions.
9.2 Memory banks
9.2.1 General
The requirements of IEC62386-102:2022, 9.10 apply with the following additions and changes.
9.2.2 Accuracy of measurements
The accuracy of measurements for the values in the memory banks is determined by the
manufacturer and is not specified in this document.
9.2.3 Rounding of measurement values
Measurement values shall be rounded to the nearest integer, with values ending in 0,5 rounded
up.

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– 10 – IEC 62386-253:2023  IEC 2023
9.2.4 Refresh rate of memory bank values
The minimum refresh rate of all memory bank values shall be one refresh cycle in 30 s. The
minimum refresh rate shall be valid if the control gear is powered regardless of the status of
"lampOn".
9.2.5 No overflow of counters
Counters shall not overflow. Their maximum value shall be MASK – 2, representing the given
value or more.
9.2.6 Failure condition flags and failure condition counters related to control gear
Table 1 shows the failure condition flags and failure condition counters that are related to
control gear failure conditions. These flags and counters are stored in memory bank 205
(Table 3).
Table 1 – Failure condition flags and failure condition counters related to control gear
Index of Name of failure condition flag Name of related failure condition counter
failure
condition
flag
0 ControlGearOverallFailureCondition ControlGearOverallFailureConditionCounter
1 ControlGearExternalSupplyUnderVoltage ControlGearExternalSupplyUnderVoltageCounter
2 ControlGearExternalSupplyOverVoltage ControlGearExternalSupplyOverVoltageCounter
3 ControlGearOutputPowerLimitation ControlGearOutputPowerLimitationCounter
4 ControlGearThermalDerating ControlGearThermalDeratingCounter
5 ControlGearThermalShutdown ControlGearThermalShutdownCounter

Each failure condition counter shall increment each time a 0 (FALSE) to 1 (TRUE) transition of
the corresponding failure condition flag occurs.
Read Protection shall always be activated or de-activated for the bundle of related failure
condition flag and failure condition counter.
9.2.7 Behaviour of "controlGearFailure"
The behaviour of "controlGearFailure" shall be as specified in IEC 62386-102 with the following
extensions:
"controlGearFailure" shall also be set to TRUE if any of the failure condition flags shown in
Table 1 with index > 0 is TRUE.
9.2.8 Failure condition flags and failure condition counters related to light source
Table 2 shows the failure condition flags and failure condition counters that are related to light
source failure conditions. These flags and counters are stored in memory bank 206 (Table 4).
Table 2 – Failure condition flags and failure condition counters related to light source
Index of Name of failure condition flag Name of related failure condition counter
failure
condition
flag
0 LightSourceOverallFailureCondition LightSourceOverallFailureConditionCounter

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IEC 62386-253:2023  IEC 2023 – 11 –
1 LightSourceOpenCircuit LightSourceOpenCircuitCounter
2 LightSourceShortCircuit LightSourceShortCircuitCounter
3 LightSourceThermalDerating LightSourceThermalDeratingCounter
4 LightSourceThermalShutdown LightSourceThermalShutdownCounter

Each failure condition counter shall increment each time a 0 (FALSE) to 1 (TRUE) transition of
the corresponding failure condition flag occurs.
Read Protection shall always be activated or de-activated for the bundle of related failure
condition flag and failure condition counter.
9.2.9 Behaviour of "lampFailure"
The behaviour of "lampFailure" shall be as specified in IEC 62386-102 with the following
extensions:
"lampFailure" shall also be set to TRUE if any of the failure condition flags shown in Table 2
with index > 0 is TRUE.
9.2.10 Hold-off time for failure condition flags
To avoid a high frequency fluctuation of failure condition flags, the set and reset mechanism for
the flag shall include a hold-off time of at least 1 s starting from every change of the flag. During
the hold-off time the state of the flag shall be stable.
EXAMPLE If ControlGearThermalShutdown was set to 1 by high temperature it can stay at this level even 20 min
after the temperature is reduced to the normal range due to the implemented hold-off time. Such long hold-off times
can be mentioned in the data sheet.
NOTE The hold-off time can be realized by using a hysteretic behaviour of the flag.
9.2.11 Memory bank 205, control gear diagnostics and maintenance
Memory bank 205 provides diagnostics and maintenance information related to the control gear,
as shown in Table 3.

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– 12 – IEC 62386-253:2023  IEC 2023

Table 3 – Memory bank 205, control gear diagnostics and maintenance
a
Address Description Default value Memory type Multi-output
Reset value
f
(factory)
requirement
g
0x00 Address of last accessible memory location 0x1C No change ROM
Ind
g
0x01 Indicator byte Manufacturer- specific Manufacturer- specific Manufacturer- specific
Ind
b g
0x02 Lock byte 0xFF RAM-RW
0xFF Ind
Lockable bytes in the memory bank shall be read-only while the lock
byte has a value different from 0x55.
Latching of the complete memory bank can be achieved by writing a
value of 0xAA to this location. See IEC 62386-102:2022, 9.10.5.5.
g
0x03 Version of the memory bank 0x01 No change ROM
Ind
g
0x04 ControlGearOperatingTime (MSB) 0x00 No change NVM-RO
Ind
g
0x05 ControlGearOperatingTime 0x00 No change NVM-RO
Ind
g
0x06 ControlGearOperatingTime 0x00 No change NVM-RO
Ind
g
0x07 ControlGearOperatingTime (LSB) 0x00 No change NVM-RO
Ind
Range of validity: [0,0xFF FF FF FE]
Scaling factor and unit: 1 s
Counts the control gear operating time in seconds if the control gear is
powered, regardless of the status of "lampOn" bit.
g
0x08 0x00 No change NVM-RO
ControlGearStartCounter (MSB) Ind
g
0x09 0x00 No change NVM-RO
ControlGearStartCounter Ind
g
0x0A ControlGearStartCounter (LSB) 0x00 No change NVM-RO
Ind
Range of validity: [0,0xFF FF FE]
Counts the number of control gear starts that are induced by a power
cycle of the external supply. A power cycle shall be counted if the
power on time is at least 600 ms.
c g
0x0B ControlGearExternalSupplyVoltage (MSB) No change RAM-RO
Ind

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IEC 62386-253:2023  IEC 2023 – 13 –

a
Address Description Default value Memory type Multi-output
Reset value
f
(factory)
requirement
c g
0x0C ControlGearExternalSupplyVoltage (LSB) No change RAM-RO
Ind
d
Range of validity: [0,0xFF FD], TMASK, MASK
(protectable)
Scaling factor and unit: 0,1 V RMS
RMS value of external supply voltage
c g
0x0D ControlGearExternalSupplyVoltageFrequency No change RAM-RO
Ind
d
Range
...