EN IEC 61784-5-21:2018/A1:2024

Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses - Installation profiles for CPF 21

Industrielle Kommunikationsnetze - Profile - Teil 5-21: Feldbusinstallation - Installationsprofile für die Kommunikationsprofilfamilie 21

Réseaux de communication industriels - Profils - Partie 5-21: Installation des bus de terrain - Profils d’installation pour CPF 21

Industrijska komunikacijska omrežja - Profili - 5-21. del: Inštalacija procesnih vodil - Inštalacijski profili za CPF 21 - Dopolnilo A1 (IEC 61784-5-21:2018/AMD1:2024)

General Information

• Status: Published
• Publication Date: 09-May-2024
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.40 - Transport layer
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65C - IEC_SC_65C
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-May-2024
• Due Date: 27-Oct-2023
• Completion Date: 10-May-2024
• Ref Project: SIST EN IEC 61784-5-21:2019/A1:2024 - Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses - Installation profiles for CPF 21 (IEC 61784-5-21:2018/AMD1:2024)

Relations

• Amends: EN IEC 61784-5-21:2018 - Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses - Installation profiles for CPF 21
• Effective Date: 23-Apr-2024
• Revises: EN IEC 61784-5-2:2018 - Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2
• Effective Date: 08-Feb-2022

Overview

The EN IEC 61784-5-21:2018/A1:2024 is a vital European standard published by CLC that addresses the installation profiles for fieldbuses within industrial communication networks. This document serves as an amendment to the 2018 edition and introduces significant updates for the installation of process control fieldbuses categorized under CPF 21. It complements and should be used alongside IEC 61918:2018 and its amendments (A1:2022 and A2:2024), ensuring consistent practices for industrial network installations.

This standard supports the efficient and reliable deployment of industrial fieldbus networks, which are crucial for process measurement and control in automated environments. By specifying detailed network installation profiles, including cable categories, data rates, connection limits, and hardware requirements, it offers practical guidelines for fieldbus installers, system integrators, and automation engineers.

Key Topics

• Installation Profiles for CPF 21: EN IEC 61784-5-21:2018/A1:2024 defines installation profiles tailored to the Communication Profile Family 21 (CPF 21), addressing balanced Ethernet cabling and optical fibre cabling parameters.

• Supported Data Rates and Cabling Requirements:

  • Balanced cabling now includes 100 Mbps and 1,000 Mbps data rates, with addition of Category 5e as a minimum cable category per ISO/IEC 11801-3.
  • Detailed specifications for patch cord length, maximum channel length, and number of connections support design optimization.

• Optical Fibre Updates:

  • Revision of single mode silica characteristics to a bandwidth of 120 MHz and wavelength of 1500 nm.
  • Increased maximum channel insertion loss/optical power budget to 10.5 dB enhances flexibility in fibre installations.

• Normative References: Updated to incorporate the latest editions and amendments of IEC 61918, ensuring harmonized industrial communication network installation standards.

• Compliance and Conformance: Clear guidance on how to demonstrate adherence to this amendment combined with the original 2018 document, relevant for certification and quality assurance purposes.

Applications

• Industrial Process Control Networks:
  The standard is applied in the design, installation, and commissioning of fieldbus systems for measuring and controlling industrial processes including manufacturing plants, chemical processing, and utilities.

• Automation and Control Systems:
  Ensures reliable communication infrastructure for programmable logic controllers (PLCs), distributed control systems (DCS), and supervisory control and data acquisition (SCADA) setups.

• Ethernet and Optical Fieldbus Installations:
  Provides guidance on cabling infrastructure using copper twisted-pair and fiber optic mediums, enabling high-speed, long-distance, and robust communication links in harsh industrial environments.

• Network Upgrade and Maintenance:
  Assists engineers in upgrading existing industrial fieldbus networks to current best practices and maintaining network performance by adhering to standardized installation criteria.

Related Standards

• IEC 61784 Series: Covers profiles for industrial communication networks including fieldbus protocols, essential to understanding complete industrial communication setups.

• IEC 61918:2018 and Amendments: Specifies the general installation requirements of communication networks in industrial premises, serving as the foundational document to which EN IEC 61784-5-21:2018/A1:2024 is closely related.

• ISO/IEC 11801-3: Provides guidance on cabling categories and classes, referenced for cable selection and performance classification.

• IEC 60793-2-50: Pertains to optical fibre specifications referenced in the amendment for cable types and performance parameters.

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By following EN IEC 61784-5-21:2018/A1:2024, industrial organizations can enhance the integrity and interoperability of their communication networks, supporting digitalization and automation initiatives while meeting international compliance standards. This amendment advances the technical foundation for efficient and future-proof industrial fieldbus installations.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2024
Industrijska komunikacijska omrežja - Profili - 5-21. del: Inštalacija procesnih vodil
- Inštalacijski profili za CPF 21 - Dopolnilo A1 (IEC 61784-5-21:2018/AMD1:2024)
Industrial communication networks - Profiles - Part 5-21: Installation of fieldbuses -
Installation profiles for CPF 21 (IEC 61784-5-21:2018/AMD1:2024)
Industrielle Kommunikationsnetze - Profile - Teil 5-21: Feldbusinstallation -
Installationsprofile für die Kommunikationsprofilfamilie 21 (IEC 61784-5-
21:2018/AMD1:2024)
Réseaux de communication industriels - Profils - Partie 5- 21: Installation des bus de
terrain - Profils d'installation pour CPF 21 (IEC 61784-5-21:2018/AMD1:2024)
Ta slovenski standard je istoveten z: EN IEC 61784-5-21:2018/A1:2024
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.40 Transportni sloj Transport layer
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61784-5-21:2018/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2024
ICS 25.040.40; 35.100.40
English Version
Industrial communication networks - Profiles - Part 5-21:
Installation of fieldbuses - Installation profiles for CPF 21
(IEC 61784-5-21:2018/AMD1:2024)
Réseaux de communication industriels - Profils - Partie 5- Industrielle Kommunikationsnetze - Profile - Teil 5-21:
21: Installation des bus de terrain - Profils d'installation pour Feldbusinstallation - Installationsprofile für die
CPF 21 Kommunikationsprofilfamilie 21
(IEC 61784-5-21:2018/AMD1:2024) (IEC 61784-5-21:2018/AMD1:2024)
This amendment A1 modifies the European Standard EN IEC 61784-5-21:2018; it was approved by CENELEC on 2024-04-26. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61784-5-21:2018/A1:2024 E

European foreword
The text of document 65C/1283/FDIS, future IEC 61784-5-21/AMD1, prepared by SC 65C "Industrial
networks" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61784-5-21:2018/A1:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-01-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-04-26
document have to be withdrawn
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61784-5-21:2018/AMD1:2024 was approved by CENELEC
as a European Standard without any modification.
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.cencenelec.eu.
Replace EN IEC 61918 with the following references:
Publication Year Title EN/HD Year
IEC 61918 2018 Industrial communication networks - EN IEC 61918 2018
Installation of communication networks in
industrial premises
- - + A11 2019
- - + A12 2023
- - + AC 2019-03
+ AMD1 2022 + A1 2022
+ AMD2 2024 + A2 2024
The normative references of EN IEC 61918:2018, EN IEC 61918:2018/A11:2019,
EN IEC 61918:2018/A12:2023, EN IEC 61918:2018/AC:2019-03, EN IEC 61918:2018/A1:2022, and
EN IEC 61918:2018/A2:2024 apply.
IEC 61784-5-21 ®
Edition 1.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Industrial communication networks – Profiles –

Part 5-21: Installation of fieldbuses – Installation profiles for CPF 21

Réseaux de communication industriels – Profils –

Partie 5-21: Installation des bus de terrain – Profils d’installation pour CPF 21

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40, 35.100.40 ISBN 978-2-8322-8403-2

– 2 – IEC 61784-5-21:2018/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES −
Part 5-21: Installation of fieldbuses –
Installation profiles for CPF 21

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 Publicat
...