IEC 62386-303:2017/AMD1:2024

Amendment 1 - Digital addressable lighting interface - Part 303: Particular requirements - Input devices - Occupancy sensor

Amendement 1 - Interface d'éclairage adressable numérique - Partie 303: Exigences particulières - Dispositifs d'entrée - Capteur de présence

General Information

• Status: Published
• Publication Date: 09-Apr-2024
• 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-2024
• Completion Date: 26-Apr-2024

Relations

• Amends: IEC 62386-303:2017 - Digital addressable lighting interface - Part 303: Particular requirements - Input devices - Occupancy sensor
• Effective Date: 05-Sep-2023

Overview

IEC 62386-303:2017/AMD1:2024 is the latest amendment to the international standard defining the particular requirements for occupancy sensors as input devices within the Digital Addressable Lighting Interface (DALI) system. Developed by the International Electrotechnical Commission (IEC), this amendment updates the movement and presence sensing functionalities to ensure consistent reporting and reliable operation of occupancy sensors connected to lighting control systems. It complements IEC 62386-103:2022, which sets general input device requirements for DALI.

This standard amendment is critical for designers, manufacturers, and integrators working with smart lighting controls, focusing on enhanced performance, interoperability, and safety in occupancy sensor applications. It aligns with evolving industry needs by refining sensor behavior, event handling, and insulation requirements.

Key Topics

• Occupancy Sensor Input Signal Mapping
  The amendment details how input signals from movement and presence sensors should be interpreted and reported to the lighting control system. For movement sensors, a direct mapping of detected movement to signal input is specified, with defined minimum durations to represent occupied states. Presence sensors are required to differentiate between detection of motion and presence without unintended state transitions.

• Sensor State Diagrams and Transitions
  Updated state diagrams clarify the internal logic of occupancy and presence detection states, including "occupied and movement," "occupied and no movement," and "vacant" states. These diagrams assist in the consistent implementation of sensor firmware and ensure predictable sensor behavior in response to user presence.

• Hold Timer Functionality
  The amended standard introduces a hold timer concept for movement sensors that helps manage occupancy status persistence. The hold timer delays the transition to a "vacant" state until a defined timeout expires, improving stability in environments with intermittent movement.

• Event Filtering and Notification
  Specifications around enabling or disabling occupancy and movement events via "eventFilter" parameters provide flexibility to reduce communication load and avoid bus flooding. The "CATCH MOVEMENT" command allows applications to capture movement triggers selectively, optimizing event management in complex lighting controls.

• Safety and Insulation Requirements
  According to applicable safety standards, occupancy sensor devices must maintain at least supplementary insulation, particularly between accessible external parts and internal electronics. This addresses the electrical safety of devices integrated within building lighting infrastructures.

• Normative References
  This amendment updates references to IEC 62386-101 and IEC 62386-103, ensuring coherence with the 2022 editions of general DALI system and input device standards. It also integrates requirements related to manual control device configuration under IEC 62386-333:2018.

Applications

IEC 62386-303:2017/AMD1:2024 applies to any indoor intelligent lighting system using DALI protocols where occupancy sensors function as automated input devices. Typical applications include:

• Commercial and Office Buildings
  Enable energy savings and enhanced comfort by automatically controlling lighting based on occupancy detected by movement or presence sensors compliant with this standard.

• Smart Homes
  Improve home lighting automation by integrating occupancy sensors that meet standardized input requirements, ensuring reliable occupancy detection and seamless interaction with DALI-controlled lights.

• Industrial Facilities
  Support advanced lighting control in warehouses and manufacturing plants by implementing sensors that provide precise occupancy information, minimizing energy consumption during unoccupied periods.

• Public Spaces and Hospitality
  Facilitate adaptive lighting in areas such as hotels, hospitals, and airports, where occupancy sensors help dynamically tailor lighting conditions to occupant presence for safety and convenience.

Related Standards

• IEC 62386-101:2022 – General requirements for DALI systems and control gear
• IEC 62386-103:2022 – Particular requirements for input devices within DALI systems
• IEC 62386-333:2018 – Particular requirements for manual control devices and configuration
• ISO/IEC Directives, Parts 1 & 2 – Guidelines for the preparation and drafting of international standards

These related standards provide the foundation for interoperable, modular, and scalable DALI lighting solutions that incorporate occupancy sensors compliant with IEC 62386-303 amendments.

---

Keywords: IEC 62386-303 amendment, occupancy sensor standard, digital addressable lighting interface, DALI input devices, movement sensor mapping, presence sensor requirements, lighting control systems, hold timer, event filter, sensor insulation requirements, smart lighting standards, automated lighting control.

Standards Content (Sample)

IEC 62386-303 ®
Edition 1.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Digital addressable lighting interface –
Part 303: Particular requirements – Input devices – Occupancy sensor

Interface d'éclairage adressable numérique –
Partie 303: Exigences particulières – Dispositifs d'entrée – Capteur de présence
IEC 62386-303:2017-05/AMD1 :2024-04(en-fr)

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC -  IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications, symboles
en utilisant différents critères (numéro de référence, texte, graphiques et le glossaire. Avec un abonnement, vous aurez
comité d’études, …). Elle donne aussi des informations sur les toujours accès à un contenu à jour adapté à vos besoins.
projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 500 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 25 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 62386-303 ®
Edition 1.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Digital addressable lighting interface –

Part 303: Particular requirements – Input devices – Occupancy sensor

Interface d'éclairage adressable numérique –

Partie 303: Exigences particulières – Dispositifs d'entrée – Capteur de présence

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50, 29.140.99 ISBN 978-2-8322-8607-4

– 2 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 303: Particular requirements – Input devices –
Occupancy sensor
AMENDMENT 1
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,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
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
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 62386-303:2017 has been prepared by IEC technical committee 34:
Lighting.
The text of this Amendment is based on the following documents:
Draft Report on voting
34/1013/CDV 34/1078A/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
© IEC 2024
The language used for the development of this Amendment is English.
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/publications/.
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, or
• revised.
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.

___________
Throughout the document:
Delete all references to IEC 62386-101:2014/AMD1:—, including the footnote where applicable.
Delete all references to IEC 62386-103:2014/AMD1:—, including the footnote where applicable.
Replace all dated references to IEC 62386-101:2014 with IEC 62386-101:2022.
Replace all dated references to IEC 62386-103:2014 with IEC 62386-103:2022.

– 4 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
INTRODUCTION
Replace the existing Figure 1 with the following new Figure 1.

Figure 1 – IEC 62386 graphical overview

1 Scope
Replace the existing text, including the Note, with the following new text:
This part of IEC 62386 is applicable to input devices that provide occupancy information to the
lighting control system through movement or presence sensing.
This document is only applicable to input devices complying with IEC 62386-103:2022.

2 Normative references
Replace the existing reference to IEC 62386-333:—, including the footnote, with the following
reference:
IEC 62386-333:2018, Digital addressable lighting interface – Part 333: Particular requirements
for control devices – Manual configuration (feature type 33)

4.3 Insulation
Replace the first paragraph, excluding the Note, with the following new paragraph:
According to applicable safety standards, it can be required that the input device has at least
supplementary insulation to accessible parts. This depends on the connected components. In
this case special attention should be paid with respect to the sensor(s) being used.

© IEC 2024
9.3.2 Input signal mapping for movement sensors
Replace the first and second paragraphs with the following new paragraphs and Note 1,
renumbering the existing Note 1 and Note 2, after Figure 2, as Note 2 and Note 3:
For movement sensors, the input signal shall directly map onto movement (only). Depending
on the type of sensor used, it is possible that a very short pulse can be produced only when
movement is first detected, or a longer signal can be produced whilst movement continues to
be detected. In any case, the instance shall change "inputValue" to 0xFF immediately if
movement is detected, remaining in this state for at least 1 s, thus reporting an occupied area
state as well. See Figure 2.
NOTE 1 This means that an instance receiving a rapid succession of movement signals which are less than 1 s
apart, will remain in the occupied and movement state, and will create a movement event only at the time it entered
this state.
A movement sensor shall support a hold timer, with timeout value T . A transition of
hold
"inputValue" to 0x00 shall only take place at the moment the hold timer expires or is cancelled.
In such a case the "vacant" trigger shall be generated. (Re)starting the hold timer means:
"discard any remaining hold time and start timing a new hold time period".

Figure 2
Replace the existing Figure 2 with the following new Figure 2, which includes the following
modifications:
• In state 0xFF, the entry actions "(Re-)trigger report timer, (Re-)trigger hold timer" are
replaced with "Stop hold timer".
• In state 0x00, the entry action "(Re-)trigger report timer" is deleted.
• In state 0xAA, the entry action "(Re-)trigger report timer" is replaced with "(Re-)start hold
timer".
– 6 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
Figure 2 – State diagram for movement based sensor
Add, after the existing Note 2, renumbered as Note 3, the following new Note 4:
NOTE 4 "Stop hold timer" means the hold timer is frozen. "(Re-)start hold timer" means the hold timer is re-started
with the full hold time T .
hold
© IEC 2024
9.3.3 Input signal mapping for presence sensors
Replace the second sentence of the first paragraph with:
If a presence sensor is not able to detect motion, it shall report no movement and shall not
enter states 0x55 or 0xFF.
After the note, add the following paragraph and example:
If a presence sensor is not able to detect motion without this also causing occupancy, then the
presence sensor shall not enter state 0x55.
EXAMPLE For a presence sensor that is not able to detect motion without this also causing occupancy, example
state transitions are as follows: Starting in state 0x00, a person moving into the area is detected, causing
simultaneous movement and occupancy triggers and entry to state 0xFF. Without the movement stopping, the person
exits the area causing movement and presence to simultaneously end, causing a return to state 0x00. If, instead, the
person entering the area then pauses (ceases movement) for a while, this would cause a state change to 0xAA. From
this state, a return to 0x00 or 0xFF are both possible.

Figure 3
Replace the existing Figure 3 with the following new Figure 3:

Figure 3 – State diagram for presence sensor

Add, after Figure 3, the following new paragraph and new Table 11:
Table 11 shows the state transitions with the conditions for exiting each state, and the action
upon exit.
– 8 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
Table 11 – Presence sensor state transitions
Initial state Exit condition Action on exit New state
Movement detected "Movement" trigger 0x55: Vacant and movement
0xAA: Occupied and no
Occupancy detected "Occupied" trigger
0x00: Vacant and no
movement
movement
Occupancy and movement "Occupied" and 0xFF: Occupied and
detected "movement" triggers movement
No movement detected "No movement" trigger 0x00: Vacant and no
movement
0x55: Vacant and Occupancy detected "Occupied" trigger 0xFF: Occupied and
movement movement
Occupancy and no "Occupied" and "no 0xAA: Occupied and no
movement detected movement" triggers movement
Movement detected "Movement" trigger 0xFF: Occupied and
movement
0xAA: Occupied and no Vacancy detected "Vacant" trigger 0x00: Vacant and no
movement movement
Vacancy and movement "Vacant" and "movement" 0x55: Vacant and movement
detected triggers
No movement detected "No movement" trigger 0xAA: Occupied and no
movement
0xFF: Occupied and
Vacancy detected "Vacant" trigger 0x55: Vacant and movement
movement
Vacancy and no movement "Vacant" and "no 0x00: Vacant and no
detected movement" triggers movement

9.4.4 Event configuration
Replace the first paragraph, excluding the Note, with the following new paragraph:
Events shall be enabled or disabled according to the value of "eventFilter". For this document,
"eventFilter" shall be reduced to one byte.
In the last paragraph of 9.4.4, replace "v still occupied" with "still occupied".
Add, at the end of 9.4.4, the following new paragraph:
Disabling an event shall not cancel transmission of an event that has already occurred and is
waiting to be sent due to the deadtime timer or bus unavailability.

9.4.5 Event generation
In the first sentence of the second paragraph, delete the word "being":

9.4.6 Movement trigger and catching
Replace the existing text of 9.4.6 with the following new text:
The event filter can be adjusted to enable or disable the "movement" event.
NOTE 1 Application controllers can consider the need to enable the "movement" event as this can result in flooding
the bus.
© IEC 2024
If the movement event is disabled, and the variable "catching" is TRUE, then a movement trigger
shall cause an "INPUT NOTIFICATION" event to be sent. "catching" is set using the command
"CATCH MOVEMENT". Each "INPUT NOTIFICATION" that was triggered by movement, shall
clear "catching", which implies that "CATCH MOVEMENT" is a single-notification request. The
instruction shall not change the event filter.
If the "movement" event is disabled and the "CATCH MOVEMENT" command is executed whilst
in the "occupied and movement" state, "catching" shall be set to TRUE but an "INPUT
NOTIFICIATION" shall not be triggered until the next change from a "no movement" to a
"movement" state.
If the movement event is enabled the "CATCH MOVEMENT" instruction shall be discarded and
"catching" shall be set to FALSE.
NOTE 2 Another "CATCH MOVEMENT" has no effect if a command has not (yet) led to a notification.
NOTE 3 "catching" does not affect event generation due to the "no movement" trigger.
The query "QUERY CATCHING" can be used to verify that no "movement" notification has been
sent yet ("catching" has been set).

9.5.1 Using the hold timer
Replace the second paragraph with the following new paragraph:
If the hold timer is running, then "CANCEL HOLD TIMER" shall cancel the hold timer and force
a transition to the "vacant" state.

9.5.2 Using the report timer
Add, after the first paragraph, the following new paragraphs:
The report timer shall be started,
• at power-on: if enabled, immediately after the receiver has started up, with the time to the
first trigger recommended to be shortened to a random time between 0 s and T s;
report
• otherwise immediately after enablement.
This implies that the first "INPUT NOTIFICATION" message due to the report timer is sent at a
maximum time of T after starting. This may be delayed by other "INPUT NOTIFICATION"
report
messages, or by bus availability.
Replace the existing last paragraph with the following new Note:
NOTE If multiple devices have the report timer enabled, they might send out conflicting data used by application
controllers to control the same control gear. Application controllers can avoid this problem by enabling only the
required report timer(s).
– 10 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
9.5.3 Using the deadtime timer
Replace the existing paragraph and Note with the following new paragraph and Note 1 and
Note 2:
If the deadtime timer is set, the instance shall not send out an event until the deadtime timer
has expired. If an event was suppressed due to the deadtime timer, then the latest event shall
be sent on expiry of the deadtime timer. The deadtime timer shall be restarted every time an
event is sent.
NOTE 1 The following example demonstrates this: The event filter is configured with only the movement event
enabled. The deadtime timer is currently running due to a previous INPUT NOTIFICATION from this instance. A new
movement trigger occurs. The transmission of a new INPUT NOTIFICATION is supressed because the deadtime
timer is still running. Next, the "occupied and movement" state ends, with the instance changing to the "occupied and
no-movement" state. Next, the deadtime timer expires. Owing to the supressed event during the deadtime, a new
INPUT NOTIFICATION is now sent. This will indicate "no movement" and "occupied" because these are the current
states.
NOTE 2 The purpose of the deadtime timer is to increase the effective bus bandwidth availability. It is not intended
to be used as a hold timer.
9.5.4 Setting the timers
Replace, in the first sentence of the first paragraph, "Event timers" with "Deadtime, hold and
report timers".
Replace the existing last four paragraphs with the following new paragraphs and Note:
If the hold timer is implemented, "SET HOLD TIMER (DTR0)" shall set "tHold" to "DTR0" unless
"DTR0" equals MASK in which case the command shall be discarded. The minimum time in
case "tHold" equals 0 shall be 1 s.
"SET REPORT TIMER (DTR0)" shall set "tReport" depending on "DTR0". If "tReport" is set to 0,
the report timer shall be disabled immediately.
"SET DEADTIME TIMER (DTR0)" shall set "tDeadtime" depending on "DTR0". If "tDeadtime" is
set to 0, the deadtime timer shall be disabled immediately, but shall not affect T until the
report
report timer is (re-)started. Disabling of the deadtime timer shall not cause previously supressed
events to be sent.
If T < T , T shall be T (independent of the value of "tReport"). This does
report deadtime report deadtime
not affect the value of "tReport".
NOTE If an application controller intends to change a running hold timer, it can wait for it to expire, or it can first
force it to expire using "CANCEL HOLD TIMER".

© IEC 2024
9.5.5 Manual configuration
Table 5
Replace rows "bit 3" and "bit 4" in Table 5, with the following two new rows:
Table 5 – "manualCapabilityInstance3xx" values
… … …
3 Manual configuration of "detectionRange" supported "1" = "Yes"
4 Manual configuration of "detectionSensitivity" supported "1" = "Yes"
… … …
Add, after 9.5.5, the following two new Subclauses 9.5.6 and 9.5.7:
9.5.6 Occupancy sensor capabilities
The supported occupancy capabilities are given in "occupancyCapabilities" which can be queried.
The encoding of "occupancyCapabilities" shall be as shown in Table 12.
Table 12 – "occupancyCapabilities" values
Bit Description Value
0 Configuration and querying of "detectionRange" supported. "1" = "Yes"
1 Configuration and querying of "detectionSensitivity" supported. "1" = "Yes"
2 Reserved "0"
3 Reserved "0"
4 Reserved "0"
5 Reserved "0"
6 Reserved "0"
7 Reserved "0"
9.5.7 Configuring the sensitivity and range
Depending on the value of "occupancyCapabilities", the input device instance may allow
adjustment of the sensor’s detection sensitivity and detection range. If the corresponding
capability is present, the input device instance shall implement the following SET instructions
to set the corresponding variables, with the corresponding QUERY commands always
implemented:
• adjustable detection range: "SET DETECTION RANGE (DTR0)", "QUERY DETECTION
RANGE" to set or query "detectionRange";
• adjustable detection sensitivity: "SET SENSITIVITY (DTR0)", "QUERY SENSITIVITY" to set
or query "detectionSensitivity".
Values of "detectionRange" and "detectionSensitivity" shall have the following meaning:
• [0,100]: 0 % to 100 %. 0 is the lowest detection range or detection sensitivity. 100 is the
highest.
• 255: Adjustment not supported.

– 12 – IEC 62386-303:2017/AMD1:2024
© IEC 2024
10 Declaration of variables
Table 7
Replace the existing Table 7 with the following new Table 7:
Table 7 – Declaration of device variables
Variable Default value Reset value Power on value Range of Memory type
(factory) validity
"extendedVersion 2.1 no change no change 00001001b ROM
Number"
Table 8
Replace the existing title of Table 8 and insert, between the last row "eventPriority" and the
existing table footnotes, the following new row and add, after table footnote "b", a new table
footnote "c", as shown:
Table 8 – Restrictions to instance variables defined
in IEC 62386-103:2022
… … … … … …
c
reserved reserved reserved reserved reserved
"instanceConfiguration[x]"
…
c
Where x is in the range [0,190].

Table 9
Insert, between the last row "catching" of Table 9 and the existing table footnotes, the following
three new rows and add, after table footnote "c", a new table footnote "d", as shown:
Table 9 – Declaration of instance variables
… … … … … …
d d
"detectionRange" factory burn-in factory burn-in no change
[0,100], MASK NVM
d d
"detectionSensitivity" factory burn-in factory burn-in no change
[0,100], MASK NVM
"occupancyCapabilities" factory burn-in no change no change [0,3] ROM
…
d
If feature is not implemented, value is MASK, memory type is ROM.

© IEC 2024
11.2.2 Standard commands
Table 10
Replace the empty row after the row "CANCEL HOLD TIMER" with the following five new rows:
Table 10 – Standard commands
… … … … … … … … … … …
SET DETECTION RANGE Device Instance 0x25    9.5.7 11.8.6
(DTR0)
SET SENSITIVITY (DTR0) Device Instance 0x26    9.5.7 11.8.7
QUERY INSTANCE Device Instance 0x29   9.5.6 11.9.7
CAPABILITIES
QUERY DETECTION RANGE Device Instance 0x2A   9.5.7 11.9.8

QUERY SENSITIVITY Device Instance 0x2B   9.5.7 11.9.9
… … … … … … … … … … …
11.7.2 CATCH MOVEMENT
In the first paragraph, replace "ignored" with "discarded".

11.7.3 CANCEL HOLD TIMER
In the first paragraph, replace "ignored" with "discarded".

11.8.2 SET EVENT FILTER (DTR0)
In the second sentence of the paragraph, replace "ignored" with "discarded".

11.8.3 SET HOLD TIMER (DTR0)
In the first paragraph, replace "ignored" with "discarded".

11.8.5 SET DEADTIME TIMER (DTR0)
Add, after 11.8.5, the following two new Subclauses 11.8.6 and 11.8.7:
11.8.6 SET DETECTION RANGE (DTR0)
If "detection range" is not supported (see "occupancyCapabilities"), this command shall be
discarded, otherwise "detectionRange" sh
...