SIST EN ISO 16484-2:2025

Building automation and control systems (BACS) - Part 2: Hardware (ISO 16484-2:2025)

ISO 16484-2:2004 specifies the requirements for the hardware to perform the tasks within a building automation and control system (BACS). It provides the terms, definitions and abbreviations for the understanding of ISO 16484-2 and ISO 16484-3. ISO 16484-2:2004 relates only to physical items/devices, i.e. devices for management functions, operator stations and other human system interface devices; controllers, automation stations and application specific controllers; field devices and their interfaces; cabling and interconnection of devices; engineering and commissioning tools.
ISO 16484-2:2004 shows a generic system model to which all different types of BACS and their interconnections (BACS network) can fit. A graphical concept of the BACS network in terms of LAN topology will be provided in ISO 16484-5.

Systeme der Gebäudeautomation - Teil 2: Hardware (ISO 16484-2:2025)

Dieses Dokument legt die Anforderungen an die Hardware fest, die für die Ausführung von Aufgaben der Gebäudeautomation erforderlich ist.
Dieses Dokument bezieht sich auf physikalische Geräte, d. h.:
-   Geräte für die menschliche Interaktion wie Management-Stationen oder Bediengeräte;
-   Geräte zur Datenspeicherung und -analyse wie Edge- oder Cloud-Server;
-   Geräte für Automationsanwendungen wie Automationsstationen;
-   Geräte zur Erfassung physischer Größen wie Sensoren und Stellgeräte.
Dieses Dokument bietet eine allgemeine Systemtopologie, die auf einer Gebäudenetzwerkinfrastruktur basiert, die sowohl die Geräte innerhalb als auch außerhalb der Gebäudehülle umfasst.

Systèmes d’automatisation et de contrôle des bâtiments (BACS) - Partie 2: Matériel (ISO 16484-2:2025)

Ce document spécifie la configuration matérielle requise pour effectuer les tâches d'automatisation des bâtiments. Cette partie de la norme concerne les appareils physiques, c’est-à-dire :
—     les appareils pour l’interaction humaine, tels que les postes de gestion ou les consoles opérateurs ;
—     les appareils pour le stockage et l’analyse de données, tels que les serveurs périphériques ou dans le Cloud ;
—     les appareils pour les applications de régulation, tels que les stations d’automatisation locales ;
—     les appareils pour l’acquisition de grandeurs physiques, tels que les capteurs et actionneurs.
Le présent document inclut une topologie de système générique basée sur une infrastructure de réseau du bâtiment qui comprend à la fois les appareils dans l’enveloppe du bâtiment et ceux hors de l’enveloppe du bâtiment.

Sistemi za avtomatizacijo in nadzor stavb - 2. del: Strojna oprema (ISO 16484-2:2025)

General Information

• Status: Published
• Public Enquiry End Date: 30-Nov-2023
• Publication Date: 13-Feb-2025
• ICS: 35.240.67 - IT applications in building and construction industry
• ICS: 35.240.99 - IT applications in other fields
• ICS: 91.040.01 - Buildings in general
• ICS: 91.140.01 - Installations in buildings in general
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: OGS - Heating for buildings
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Feb-2025
• Due Date: 19-Apr-2025
• Completion Date: 14-Feb-2025
• Ref Project: EN ISO 16484-2:2025 - Building automation and control systems (BACS) - Part 2: Hardware (ISO 16484-2:2025)

Relations

• Revises: SIST EN ISO 16484-2:2004 - Building automation and control systems (BACS) - Part 2: Hardware (ISO 16484-2:2004)
• Effective Date: 20-Feb-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2025
Sistemi za avtomatizacijo in nadzor stavb - 2. del: Strojna oprema (ISO 16484-
2:2025)
Building automation and control systems (BACS) - Part 2: Hardware (ISO 16484-2:2025)
Systeme der Gebäudeautomation - Teil 2: Hardware (ISO 16484-2:2025)
Systèmes d’automatisation et de contrôle des bâtiments (BACS) - Partie 2: Matériel (ISO
16484-2:2025)
Ta slovenski standard je istoveten z: EN ISO 16484-2:2025
ICS:
91.140.01 Napeljave v stavbah na Installations in buildings in
splošno general
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16484-2
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2025
EUROPÄISCHE NORM
ICS 91.040.01; 35.240.67 Supersedes EN ISO 16484-2:2004
English Version
Building automation and control systems (BACS) - Part 2:
Hardware (ISO 16484-2:2025)
Systèmes d'automatisation et de contrôle des Systeme der Gebäudeautomation - Teil 2: Hardware
bâtiments (BACS) - Partie 2: Matériel (ISO 16484- (ISO 16484-2:2025)
2:2025)
This European Standard was approved by CEN on 20 January 2025.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16484-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 16484-2:2025) has been prepared by Technical Committee ISO/TC 205
"Building environment design" in collaboration with Technical Committee CEN/TC 247 “Building
Automation, Controls and Building Management” the secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2025, and conflicting national standards shall
be withdrawn at the latest by August 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 16484-2:2004.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 16484-2:2025 has been approved by CEN as EN ISO 16484-2:2025 without any
modification.
International
Standard
ISO 16484-2
Second edition
Building automation and control
2025-01
systems (BACS) —
Part 2:
Hardware
Systèmes d’automatisation et de contrôle des bâtiments
(BACS) —
Partie 2: Matériel
Reference number
ISO 16484-2:2025(en) © ISO 2025

ISO 16484-2:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 16484-2:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 6
5 BACS features catalogue . 7
5.1 BACS components .7
5.1.1 Hardware components .7
5.1.2 System configuration .7
5.1.3 Basic hardware performance criteria .7
5.2 Building management .8
5.2.1 General .8
5.2.2 Devices for data processing, storage and archiving .8
5.2.3 Management stations and operating units .9
5.2.4 Data interface unit (DIU) .9
5.3 Control devices .9
5.3.1 General .9
5.3.2 Edge device — Tasks.9
5.3.3 Automation station.10
5.4 Sensors and actuators .11
5.5 Local override/indication device — Task and use . 12
5.6 Room control device . 12
6 Topology . .12
6.1 Topology . 12
6.2 System communication . 12
6.2.1 General . 12
6.2.2 Cyber security . 13
6.2.3 Data security . 13
6.2.4 Human interaction . 13
6.2.5 Storage and analysis of data. 13
6.2.6 Cloud to cloud communication .14
6.2.7 Wireless networks .14
Bibliography .15

iii
ISO 16484-2:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
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in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO 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, ISO 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
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformi
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