EN IEC 62026-1:2019

Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 1: General rules

IEC 62026-1:2019 is available as IEC 62026-1:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62026-1:2019 applies to interfaces between low-voltage switchgear, controlgear, and controllers (e.g. programmable controllers, personal computers, etc.). This document does not apply to higher level industrial communication networks that have become known as fieldbuses and are considered by IEC subcommittee 65C. This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) additional requirements for safety information and instructions, including the measures to be taken, if any, for achieving EMC compliance; b) EMC immunity requirements aligned with current IEC 61000-6 series of standards. Radiated radio-frequency electromagnetic fields test level increased to 6 GHz; c) EMC emissions requirements aligned with current CISPR 11 publication.

Niederspannungsschaltgeräte - Steuerung-Geräte-Netzwerke (CDIs) - Teil 1: Allgemeine Festlegungen

Appareillage à basse tension - Interfaces appareil de commande-appareil (CDI) - Partie 1: Règles générales

IEC 62026-1:2019 est disponible sous forme de IEC 62026-1:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 62026-1:2019 s’applique aux interfaces entre l’appareillage à basse tension et des appareils de commande (par exemple automates programmables, ordinateurs personnels, etc.). Le présent document ne s’applique pas aux réseaux de communication industriels de plus haut niveau connus sous le nom de bus de terrain et qui relèvent du sous-comité 65C de l’IEC. Cette troisième édition annule et remplace la deuxième édition parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) exigences supplémentaires pour les informations et les instructions relatives à la sécurité, notamment les mesures à prendre, s’il y a lieu, pour parvenir à la conformité CEM; b) alignement des exigences CEM concernant l’immunité sur celles de la série de normes IEC 61000-6. Niveau d’essai des champs électromagnétiques rayonnés aux fréquences radioélectriques porté à 6 GHz; c) alignement des exigences CEM concernant les émissions sur celles de la publication CISPR 11 actuelle.

Nizkonapetostne stikalne in krmilne naprave - Vmesniki krmilnikov (CDIs) - 1. del: Splošna pravila (IEC 62026-1:2019)

Ta del standarda IEC 62026 se uporablja za vmesnike med nizkonapetostnimi stikalnimi in krmilnimi napravami ter krmilniki (npr. programirljive krmilnike, osebne računalnike itd.).
Ta dokument se ne uporablja za visokonivojska industrijska komunikacijska omrežja, ki so bila poimenovana »vodila« in jih obravnava pododbor IEC 65C.
Namen tega dokumenta je uskladiti in določiti pravila, komponente ter splošne zahteve, ki se uporabljajo za industrijske vmesnike krmilnikov. Te značilnosti različnih standardov za vmesnike krmilnikov, ki jih je mogoče obravnavati kot splošne, so tako združene v tem dokumentu.
Za vsak vmesnik krmilnika sta potrebna dva glavna dokumenta, ki določata vse zahteve in preskuse:
a) ta dokument, imenovan »IEC 62026-1« v zadevnih delih o vmesnikih krmilnikov, ki zajemajo različne vrste vmesnikov krmilnikov;
b) poseben del o vmesnikih krmilnikov iz skupine standardov IEC 62026.
Poseben del o vmesnikih krmilnikov lahko izpušča splošno zahtevo, če se ne uporablja, ali pa jo dopolnjuje, če je neustrezna v določenem primeru.
OPOMBA: Posebne zahteve za izdelke, ki vključujejo vmesnik krmilnika, so podane v ustreznih standardih za izdelek.
Te zahteve se uporabljajo poleg zahtev, podanih v tem dokumentu.

General Information

• Status: Published
• Publication Date: 11-Jul-2019
• Withdrawal Date: 12-Jun-2022
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: CLC/TC 121A - Low-voltage switchgear and controlgear
• Drafting Committee: IEC/SC 121A - Low-voltage switchgear and controlgear
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 12-Jul-2019
• Completion Date: 12-Jul-2019
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: SIST EN IEC 62026-1:2019 - Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 1: General rules (IEC 62026-1:2019)

Relations

• Replaces: EN 62026-1:2007 - Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 1: General rules
• Effective Date: 07-Jun-2022

Overview

EN IEC 62026-1:2019 (IEC 62026-1:2019) defines general rules for controller‑device interfaces (CDIs) between low‑voltage switchgear and controlgear and controllers (for example programmable controllers, personal computers). This third edition supersedes EN 62026‑1:2007 and is a technical revision that brings CDI requirements up to date with modern electromagnetic compatibility (EMC) and safety expectations. The standard does not cover higher‑level fieldbus networks (addressed by IEC SC65C).

Key topics and requirements

• Scope and classifications: Defines the range of industrial CDIs used in factory and process automation and provides a consistent structure to compare CDI technologies.
• CDI components and interfaces: Specifies common components, interface types, topology and information‑exchange models to help manufacturers and users select appropriate CDI solutions.
• Product information and documentation:
  • Requirements for installation, operation and maintenance instructions.
  • Marking, profiles and degree of protection information required on products.
  • Additional requirements for safety information and instructions, including measures (if any) for achieving EMC compliance.
• Environmental and service conditions: Normal service, mounting, transport and storage conditions (ambient temperature, altitude, climatic conditions).
• Constructional and performance requirements:
  • EMC immunity aligned with the IEC 61000‑6 series; radiated RF immunity test level extended up to 6 GHz.
  • EMC emissions aligned with current CISPR 11 publication.
• Tests and conformity: Type test requirements and EMC test procedures for CDI components and interfaces.

Practical applications and users

EN IEC 62026‑1:2019 is intended for:

• Manufacturers of low‑voltage switchgear and controlgear who design CDI hardware and document interfaces.
• System integrators and automation engineers specifying controller-to-device interfaces in factory and process automation.
• EMC and safety engineers ensuring products meet immunity and emissions requirements.
• Standards writers and test laboratories developing or verifying CDI‑specific IEC standards and performing conformity testing.

Typical applications include control panels, PLC-to-I/O device interfaces, industrial controllers communicating with protection and monitoring devices, and CDI profiles used in industrial control systems.

Related standards

• IEC 61000‑6 series (EMC immunity for industrial environments)
• CISPR 11 (EMC emissions for industrial, scientific and medical equipment)
• IEC 60947‑1 (Low‑voltage switchgear and controlgear - General rules)

Keywords: EN IEC 62026-1:2019, controller-device interfaces, CDIs, low-voltage switchgear, controlgear, EMC, CISPR 11, IEC 61000-6, industrial automation, CDI testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2019
Nadomešča:
SIST EN 62026-1:2007
Nizkonapetostne stikalne in krmilne naprave - Vmesniki krmilnikov (CDIs) - 1. del:
Splošna pravila (IEC 62026-1:2019)
Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 1:
General rules (IEC 62026-1:2019)
Niederspannungsschaltgeräte - Steuerung-Geräte-Netzwerke (CDIs) - Teil 1: Allgemeine
Festlegungen (IEC 62026-1:2019)
Appareillage à basse tension - Interfaces appareil de commande-appareil (CDI) - Partie
1: Règles générales (IEC 62026-1:2019)
Ta slovenski standard je istoveten z: EN IEC 62026-1:2019
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62026-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 29.130.20 Supersedes EN 62026-1:2007 and all of its amendments
and corrigenda (if any)
English Version
Low-voltage switchgear and controlgear - Controller-device
interfaces (CDIs) - Part 1: General rules
(IEC 62026-1:2019)
Appareillage à basse tension - Interfaces appareil de Niederspannungsschaltgeräte - Steuerung-Geräte-
commande-appareil (CDI) - Partie 1: Règles générales Netzwerke (CDIs) - Teil 1: Allgemeine Festlegungen
(IEC 62026-1:2019) (IEC 62026-1:2019)
This European Standard was approved by CENELEC on 2019-06-13. 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,
Turkey 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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62026-1:2019 E

European foreword
The text of document 121A/280/FDIS, future edition 3 of IEC 62026-1, prepared by SC 121A "Low-
voltage switchgear and controlgear" of IEC/TC 121 "Switchgear and controlgear and their assemblies
for low voltage" 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) 2020-03-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-06-13
document have to be withdrawn
This document supersedes EN 62026-1:2007 and all of its amendments and corrigenda (if any).
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.

Endorsement notice
The text of the International Standard IEC 62026-1:2019 was approved by CENELEC as a European
Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61000-6 (series) NOTE Harmonized as EN 61000-6 (series)
IEC 62026 (series) NOTE Harmonized as EN 62026 (series)

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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60947-1 2007 Low-voltage switchgear and controlgear - Part 1: EN 60947-1 2007
General rules
+ A1 2010  + A1 2011
+ A2 2014  + A2 2014
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - Part 4-2: EN 61000-4-2 2009
Testing and measurement techniques -
Electrostatic discharge immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - Part 4-3 : EN 61000-4-3 2006
Testing and measurement techniques - Radiated,
radio-frequency, electromagnetic field immunity
test
+ A1 2007  + A1 2008
+ A2 2010  + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) - Part 4-4: EN 61000-4-4 2012
Testing and measurement techniques - Electrical
fast transient/burst immunity test
IEC 61000-4-5 2014 Electromagnetic compatibility (EMC) - Part 4-5: EN 61000-4-5 2014
Testing and measurement techniques - Surge
immunity test
+ A1 2017  + A1 2017
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) - Part 4-6: EN 61000-4-6 2014
Testing and measurement techniques - Immunity
to conducted disturbances, induced by radio-
frequency fields
IEC 61000-6-2 2016 Electromagnetic compatibility (EMC) - Part 6-2: EN IEC 61000-6-2 2019
Generic standards - Immunity standard for
industrial environments
CISPR 11 (mod) 2015 Industrial, scientific and medical equipment - EN 55011 2016
Radio-frequency disturbance characteristics -
Limits and methods of measurement
+ A1 2016  + A1 2017
IEC 62026-1 ®
Edition 3.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear – Controller-device interfaces (CDIs) –

Part 1: General rules
Appareillage à basse tension – Interfaces appareil de commande-appareil (CDI) –

Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.20 ISBN 978-2-8322-6868-1

– 2 – IEC 62026-1:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Classifications . 8
5 Characteristics . 8
5.1 CDI components . 8
5.2 Interfaces . 9
5.3 Topology . 9
5.4 Information exchanges . 9
5.5 Attributes . 9
6 Product information . 9
6.1 Instructions for installation, operation and maintenance . 9
6.2 Profiles . 9
6.3 Marking . 10
6.4 Degree of protection . 10
7 Normal service, mounting and transport conditions . 10
7.1 General . 10
7.2 Normal service conditions . 10
7.2.1 General . 10
7.2.2 Ambient air temperature . 10
7.2.3 Altitude . 10
7.2.4 Climatic conditions . 10
7.3 Conditions during transport and storage . 11
7.4 Mounting . 11
8 Constructional and performance requirements . 11
8.1 General . 11
8.2 Electromagnetic compatibility (EMC) . 11
8.2.1 Immunity . 11
8.2.2 Emission . 12
8.2.3 EMC tests . 12
9 Tests . 12
9.1 General . 12
9.2 Type tests . 13
9.3 Electromagnetic compatibility . 13
Bibliography . 14

Table 1 – Immunity requirements . 12

IEC 62026-1:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
CONTROLLER-DEVICE INTERFACES (CDIs) –

Part 1: General rules
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) 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.
International Standard IEC 62026-1 has been prepared by subcommittee 121A: Low-voltage
switchgear and controlgear, of IEC technical committee 121: Switchgear and controlgear and
their assemblies for low voltage.
This third edition cancels and replaces the second edition published in 2007. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) additional requirements for safety information and instructions, including the measures to
be taken, if any, for achieving EMC compliance;
b) EMC immunity requirements aligned with current IEC 61000-6 series of standards.
Radiated radio-frequency electromagnetic fields test level increased to 6 GHz;
c) EMC emissions requirements aligned with current CISPR 11 publication.

– 4 – IEC 62026-1:2019 © IEC 2019
The text of this International Standard is based on the following documents:
FDIS Report on voting
121A/280/FDIS 121A/295/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62026, under the general title Low-voltage switchgear and
controlgear – Controller-device interfaces (CDIs), 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 "http://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.
...