Industrial communication networks - Wireless communication networks - Part 1: Wireless communication requirements and spectrum considerations

IEC 62657-1:2017 provides the wireless communication requirements dictated by the applications of wireless communication systems in industrial automation, and requirements of related context. The requirements are specified in a way that is independent of the wireless technology employed. The requirements are described in detail and in such a way as to be understood by a large audience, including readers who are not familiar with the industry applications. This first edition cancels and replaces the first edition of IEC TS 62657-1 published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC TS 62657‑1:2014: a) update of requirements for wireless industrial applications; b) addition of performance indicators and their measurement.

Industrielle Kommunikationsnetze - Funk-Kommunikationsnetze - Teil 1: Anforderungen und Überlegungen zur Frequenznutzung

Réseaux de communication industriels - Réseaux de communication sans fil - Partie 1: Exigences de communication sans fil et considérations relatives au spectre

IEC 62657-1:2017 fournit les exigences de communication sans fil dictées par les applications des systèmes de communication sans fil dans le domaine de l'automatisation industrielle, ainsi que les exigences du contexte associé. Les exigences sont spécifiées indépendamment de la technologie sans fil utilisée. Les exigences sont décrites en détail et de manière à être comprises par le plus grand nombre, y compris les lecteurs qui ne sont pas familiers des applications industrielles. Cette première édition annule et remplace la première édition de l'IEC TS 62657-1, parue en 2014. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques suivantes par rapport à l'IEC TS 62657‑1:2014: a) mise à jour des exigences relatives aux applications industrielles sans fil; b) ajout d'indicateurs de performances et leur mesurage.

Industrijska komunikacijska omrežja - Brezžična komunikacijska omrežja - 1. del: Zahteve za brezžično komunikacijo in upoštevanje spektra (IEC 62657-1:2017)

Ta del standarda IEC 62657 določa zahteve za brezžično komunikacijo, ki jih narekujejo načini uporabe brezžičnih komunikacijskih sistemov v industrijski avtomatizaciji, in s tem povezane zahteve. Zahteve so določene na način, ki je neodvisen od uporabljene brezžične tehnologije. Zahteve so podrobno opisane na način, ki je razumljiv širši javnosti, vključno z bralci, ki niso seznanjeni z industrijskimi načini uporabe.
Opisani so socialni, okoljski in zdravstveni vidiki ter tržne zahteve za brezžične komunikacijske sisteme v industrijski avtomatizaciji, ki upravičujejo zahteve glede brezžične komunikacije.
Dokument ponuja tudi utemeljitev za uspešno izražanje predlaganih kratkoročnih in dolgoročnih rešitev za zahteve brezžične komunikacije. Upravljanje soobstoja v skladu s standardom IEC 62657-2 se že uporablja za kratkoročne rešitve.
Ta dokument opisuje zahteve za uporabo pri industrijskih avtomatizaciji, ki jih je mogoče uporabiti za zahtevo po dodatnem namenskem enoličnem svetovnem spektru. Ta dodatni spekter je predviden za dodatne brezžične načine uporabe, hkrati pa se bodo sedanji pasovi za industrijske, znanstvene in medicinske (ISM) namene še naprej uporabljali.
Ta dokument podaja uporabne informacije za strokovnjake s področja avtomatizacije, ki niso seznanjeni s spektralno ali brezžično tehnologijo.
Avtomatizacija stavb na spada na področje uporabe zaradi različnih omejitev pri uporabi (pri večini neindustrijskih stavb lastnik/upravljavec običajno težko izvaja nadzor nad prisotnostjo in delovanjem radijske opreme).

General Information

Status
Published
Publication Date
26-Oct-2017
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available
Due Date
24-Jul-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrielle Kommunikationsnetze - Funk-Kommunikationsnetze - Teil 1: Anforderungen und Überlegungen zur Frequenznutzung (IEC 62657-1:2017)Réseaux de communication industriels - Réseaux de communication sans fil - Partie 1: Exigences de communication sans fil et considérations relatives au spectre (IEC 62657-1:2017)Industrial communication networks - Wireless communication networks - Part 1: Wireless communication requirements and spectrum considerations

(IEC 62657-1:2017)35.110OmreževanjeNetworking25.040.40Merjenje in krmiljenje industrijskih postopkovIndustrial process measurement and controlICS:Ta slovenski standard je istoveten z:EN 62657-1:2017SIST EN 62657-1:2018en,fr,de01-februar-2018SIST EN 62657-1:2018SLOVENSKI

STANDARD
SIST EN 62657-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 62657-1
October 2017 ICS 25.040; 33.040.40; 35.240.50
English Version
Industrial communication networks -
Wireless communication networks -
Part 1: Wireless communication requirements
and spectrum considerations (IEC 62657-1:2017)

Réseaux de communication industriels - Réseaux de communication sans fil - Partie 1: Exigences de communication sans fil et considérations relatives au spectre (IEC 62657-1:2017)

Industrielle Kommunikationsnetze - Funk-Kommunikationsnetze - Teil 1: Anforderungen und Überlegungen zur Frequenznutzung (IEC 62657-1:2017) This European Standard was approved by CENELEC on 2017-07-24. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17,

B-1000 Brussels © 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62657-1:2017 E SIST EN 62657-1:2018

EN 62657-1:2017 2 European foreword The text of document 65C/874/FDIS, future edition 1 of IEC 62657-1, 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 62657-1:2017. The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-04-27 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2020-10-27

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 62657-1:2017 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 61784-1 NOTE Harmonized as EN 61784-1. IEC 62479:2010 NOTE Harmonized as EN 62479:2010 (modified). IEC 62591 NOTE Harmonized as EN 62591. IEC 62601 NOTE Harmonized as EN 62601. IEC 62734 NOTE Harmonized as EN 62734. IEC 60079-0 NOTE Harmonized as EN 60079-0. IEC 60079-11 NOTE Harmonized as EN 60079-11. IEC 60079-25 NOTE Harmonized as EN 60079-25. ISO/IEC 80079-34:2011 NOTE Harmonized as ISO/IEC 80079-34:2011 (modified). IEC 61508 NOTE Harmonized in EN 61508 series. IEC 61804-3 NOTE Harmonized as EN 61804-3. IEC 62443 NOTE Harmonized in EN 62443 series. IEC 62453 NOTE Harmonized in EN 62453 series. SIST EN 62657-1:2018

EN 62657-1:2017 3 IEC 62714 NOTE Harmonized in EN 62714 series. IEC 62769 NOTE Harmonized in EN 62769 series. IEC 62952 NOTE Harmonized in EN 62952 series. SIST EN 62657-1:2018

EN 62657-1:2017 4 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 When 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 60079-10-1 -

Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres EN 60079-10-1 -

IEC 60079-10-2 -

Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres EN 60079-10-2 -

IEC 61511 series Functional safety - Safety instrumented systems for the process industry sector EN 61511 series IEC 61784-2 -

Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3 EN 61784-2 -

IEC 61784-3 -

Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile definitions EN 61784-3 -

IEC 62657-2 2017

Industrial communication networks - Wireless communication networks – Part 2: Coexistence management EN 62657-2 2017

ETSI TR 102 889-2 V1.1.1 (2011-08) 2011

Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference Document; Short Range Devices (SRD); Part 2: Technical characteristics for SRD equipment for wireless industrial applications using technologies different from Ultra-Wide Band (UWB) - -

SIST EN 62657-1:2018

EN 62657-1:2017 5 Publication Year Title EN/HD Year ETSI EN 300 328 V2.1.1 (2016-11) 2016

Wideband transmission systems; Data transmission equipment operating in the 2,4 GHz ISM band and using wide band modulation techniques; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU - -

SIST EN 62657-1:2018
SIST EN 62657-1:2018

IEC 62657-1 Edition 1.0 2017-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks – Wireless communication networks –

Part 1: Wireless communication requirements and spectrum considerations
Réseaux de communication industriels – Réseaux de communication sans fil –

Partie 1: Exigences de communication sans fil et considérations relatives au spectre

INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE

ICS 25.040; 33.040.40; 35.240.50
ISBN 978-2-8322-4403-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ®

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. SIST EN 62657-1:2018 colourinside

– 2 – IEC 62657-1:2017 © IEC 2017

CONTENTS FOREWORD ........................................................................................................................... 4 INTRODUCTION ..................................................................................................................... 6 1 Scope .............................................................................................................................. 7 2 Normative references ...................................................................................................... 7 3 Terms, definitions abbreviated terms and acronyms ........................................................ 8 3.1 Terms and definitions .............................................................................................. 8 3.2 Abbreviated terms and acronyms .......................................................................... 11 4 Wireless communication requirements of industrial automation – considerations for regulators ................................................................................................................. 12 4.1 Worldwide harmonized frequency use ................................................................... 12 4.2 Coexistence management process (see IEC 62657-2) .......................................... 12 4.3 Concepts for using spectrum in wireless industrial applications ............................. 13 4.3.1 General ......................................................................................................... 13 4.3.2 Suitable available spectrum for wireless industrial applications ...................... 14 4.3.3 Dedicated spectrum ....................................................................................... 15 4.3.4 Other concepts .............................................................................................. 16 4.4 Market relevance and requirements ...................................................................... 18 4.4.1 General ......................................................................................................... 18 4.4.2 Enabling position of industry equipment ......................................................... 19 4.4.3 Cost-benefit aspects and benefits in the application ...................................... 20 4.5 Social, health and environmental aspects ............................................................. 21 4.5.1 General ......................................................................................................... 21 4.5.2 Social, health and environmental considerations ............................................ 21 4.5.3 Health concerns ............................................................................................. 24 4.5.4 Other concerns .............................................................................................. 25 5 Wireless communication requirements of industrial automation – considerations for automation experts ................................................................................................... 25 5.1 Use of wireless communication networks in industrial automation ......................... 25 5.1.1 General ......................................................................................................... 25 5.1.2 Essential differences between wireless and wired communication networks ........................................................................................................ 26 5.1.3 Communication networks in industrial automation .......................................... 28 5.1.4 Application fields ........................................................................................... 30 5.2 Industrial automation application requirements (use cases) .................................. 31 5.2.1 General ......................................................................................................... 31 5.2.2 Use case 1 – Safety of workers around transporting machines ...................... 31 5.2.3 Use case 2 – Level monitoring and alarming in a tank farm ........................... 32 5.2.4 Use case 3 – Field worker support with mobile wireless equipment................ 33 5.2.5 Use case 4 – Vibration monitoring and analysis of rotating machines ............ 34 5.2.6 Use case 5 – Oil wellhead monitoring and control .......................................... 34 5.2.7 Use case 6 – Some applications for factory automation, with a large number of nodes ............................................................................................ 35 5.3 Wireless communication network requirements ..................................................... 35 5.3.1 Timing and real-time ...................................................................................... 35 5.3.2 Bandwidth and bit rate ................................................................................... 45 5.3.3 Radio propagation conditions, geographic coverage and scale of the network.......................................................................................................... 46 SIST EN 62657-1:2018

IEC 62657-1:2017 © IEC 2017 – 3 –

5.3.4 Power consumption ....................................................................................... 48 5.3.5 Electromagnetic compatibility (EMC) ............................................................. 49 5.3.6 Functional safety ........................................................................................... 50 5.3.7 Intrinsic safety ............................................................................................... 50 5.3.8 Security ......................................................................................................... 52 5.3.9 Availability, reliability ..................................................................................... 53 5.4 Life-cycle requirements ......................................................................................... 55 5.5 Integration of wireless communication systems into automation applications ......... 55 5.6 Network information and statistics ......................................................................... 55 Bibliography .......................................................................................................................... 56

Figure 1 – End producer revenue .......................................................................................... 19 Figure 2 – Typical risk reduction methods found in process plants ........................................ 22 Figure 3 – Wireless communication system interrelated with the automation pyramid ........... 29 Figure 4 – Example of graphical representation of consistent indicators ................................ 37 Figure 5 – General system model for defining application

communication performance requirements ......................................................................................................................... 37 Figure 6 – Wireless automation device model for defining application

communication performance requirements .................................................................................................... 38 Figure 7 – Communication link with wireless automation

devices with fieldbus interfaces .............................................................................................................................. 39 Figure 8 – Communication link with a wireless automation device with I/O

process interface and a wireless automation device with fieldbus interfaces ...................................... 39 Figure 9 – Time fragments of transmission time .................................................................... 40 Figure 10 – Example of the density functions of transmission time ........................................ 41 Figure 11 – Time fragments of update time ........................................................................... 42 Figure 12 – Example of the density functions of update time ................................................. 43

Table 1 – Example of a classification of application communication requirements ................. 19 Table 2 – Structure of the communication networks used in the application fields ................. 26 Table 3 – Benefits of using wireless systems ........................................................................ 27 Table 4 – Examples of application grace time ....................................................................... 53

SIST EN 62657-1:2018

– 4 – IEC 62657-1:2017 © IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________

INDUSTRIAL COMMUNICATION NETWORKS –
WIRELESS COMMUNICATION NETWORKS –
Part 1: Wireless communication requirements
and spectrum considerations

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 62657-1 has been prepared by subcommittee 65C: Industrial networks, of IEC technical committee 65: Industrial-process measurement, control and automation. This first edition cancels and replaces the first edition of IEC TS 62657-1 published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC TS 62657-1:2014: a) update of requirements for wireless industrial applications; b) addition of performance indicators and their measurement.

SIST EN 62657-1:2018
IEC 62657-1:2017 © IEC 2017 – 5 –

The text of this International Standard is based on the following documents: FDIS Report on voting 65C/874/FDIS 65C/878/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 62657 series, under the general title Industrial communication networks – Wireless communication networks, 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.

SIST EN 62657-1:2018

– 6 – IEC 62657-1:2017 © IEC 2017 INTRODUCTION This document provides general requirements of industrial automation and spectrum considerations that are the basis for industrial communication solutions. This document is intended to facilitate harmonization of future adjustments to international, national, regional and local regulations. IEC 62657-2 provides the coexistence management concept and process. Based on the coexistence management process, a predictable assuredness of coexistence can be achieved for a given spectrum with certain application requirements.

SIST EN 62657-1:2018
IEC 62657-1:2017 © IEC 2017 – 7 –
INDUSTRIAL COMMUNICATION NETWORKS –
WIRELESS COMMUNICATION NETWORKS –
Part 1: Wireless communication requirements
and spectrum considerations

1 Scope This part of IEC 62657 provides the wireless communication requirements dictated by the applications of wireless communication systems in industrial automation, and requirements of related context. The requirements are specified in a way that is independent of the wireless technology employed. The requirements are described in detail and in such a way as to be understood by a large audience, including readers who are not familiar with the industry applications. Social aspects, environmental aspects, health aspects and market requirements for wireless communication systems in industrial automation are described to justify the wireless communication requirements. This document also provides a rationale to successfully articulate the solutions of the wireless communication requirements proposed for the short-term and long-term. Coexistence management according to IEC 62657-2 is already applied in the short-term.

This document describes requirements of the industrial automation applications that can be used to ask for additional dedicated, worldwide unique spectrum. This additional spectrum is intended to be used for additional wireless applications while continuing using the current industrial, scientific and medical (ISM) bands. This document provides useful information for the automation field professionals who are not familiar with the spectrum and wireless technologies. Building automation is excluded from the scope because of the different usage constraints (for most non-industrial buildings it is normally difficult for the owner/operator to impose control over the presence and operation of radio equipment). 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 60079-10-1, Explosive atmospheres – Part 10-1: Classification of areas – Explosive gas atmospheres IEC 60079-10-2, Explosive atmospheres – Part 10-2: Classification of areas – Explosive dust atmospheres IEC 61511 (all parts), Functional safety – Safety instrumented systems for the process industry sector IEC 61784-2, Industrial communication networks – Profiles – Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3 SIST EN 62657-1:2018

– 8 – IEC 62657-1:2017 © IEC 2017 IEC 61784-3, Industrial communication networks – Profiles – Part 3: Functional safety fieldbuses – General rules and profile definitions IEC 62657-2:—1, Industrial communication networks – Wireless communication networks – Part 2: Coexistence management ETSI TR 102 889-2 V.1.1.1 (2011), Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference Document; Short Range Devices (SRD); Part 2: Technical characteristics for SRD equipment for wireless industrial applications using technologies different from Ultra-Wide Band (UWB) ETSI EN 300 328 V2.1.1 (2016), Wideband transmission systems; Data transmission equipment operating in the 2,4 GHz ISM band and using wide band modulation techniques; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU 3 Terms, definitions abbreviated terms and acronyms 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 62657-2:— and the following apply. 3.1.1

automation application application of measurement and automatic control in the industrial automation domains 3.1.2

availability, ability of an item to be in a state to perform a required function under given conditions at a given instant of time or over a given time interval, assuming that the required external resources are provided Note 1 to entry This ability depends on the combined aspects of the reliability performance, the maintainability performance, and the maintenance support performance. Note 2 to entry Required external resources, other than maintenance resources, do not affect the availability performance of the item. [SOURCE: IEC 60050-191:1990, 191-02-05] 3.1.3

coexistence wireless communication coexistence state in which all wireless communication solutions of a plant using shared medium fulfil all their application communication requirements Note 1 to entry: In IEEE 802.15.2-2003 [17]2 the coexistence is defined as a characteristic of a device. [SOURCE: IEC 62657-2:—, 3.1.13] 3.1.4

coexistence management process to establish and to maintain coexistence that includes technical and organizational measures ___________ 1 Under preparation. Stage at the time of publication: IEC FDIS 62657-2:2017. 2 Numbers in square brackets refer to the Bibliography. SIST EN 62657-1:2018

IEC 62657-1:2017 © IEC 2017 – 9 –
[SOURCE: IEC 62657-2: —, 3.1.15] 3.1.5

cognitive radio system radio system employing technology that allows the system to obtain knowledge of its operational and geographical environment, established policies and its internal state; to dynamically and autonomously adjust its operational parameters and protocols according to its obtained knowledge in order to achieve predefined objectives; and to learn from the results obtained [SOURCE: ITU-R SM.2152:2009] [8] 3.1.6

conduit logical grouping of communication assets that protects the security of the channels it contains Note 1 to entry This is analogous to the way that a physical conduit protects cables from physical damage [see IEC 62443 (all parts)]. Note 2 to entry A USB port is considered a conduit, but a USB device (e.g. memory stick) is considered an asset. 3.1.7

Ethernet communication system according to ISO/IEC/IEEE 8802-3 and IEEE 802.1D 3.1.8

factory automation automation application in industrial automation branches typically with discrete characteristics of the application to be automated with specific requirements for determinism, low latency, reliability, redundancy, cyber security, and functional safety Note 1 to entry Low latency typically means below 10 ms delivery time. 3.1.9

plant managed facility, typically with a physically protected perimeter, hosting the physical process, operation, personnel, equipment [SOURCE: IEC 62657-2:—, 3.1.58] 3.1.10

process automation automation application in industrial automation branches typically with continuous characteristics of the application to be automated with specific requirements for determinism, reliability, redundancy, cyber security, and functional safety 3.1.11

reconfigurable radio system RRS radio system encompassing software defined radio and/or cognitive radio system [SOURCE: ETSI TR 102 945 V1.1.1 (2013-06)] 3.1.12

reliability ability of an item to perform a required function under given conditions for a given time interval Note 1 to entry It is generally assumed that the item is in a state to perform this required function at the beginning of the time interval. SIST EN 62657-1:2018

– 10 – IEC 62657-1:2017 © IEC 2017 Note 2 to entry The term “reliability” is also used as a measure of reliability performance (see IEC 60050-191:1990, 191-12-01). [SOURCE: IEC 60050-191:1990, 191-02-06, modified – Note 2 to entry has been modified.] 3.1.13

shared medium resource of frequency band in particular area shared by several wireless applications Note 1 to entry In the industrial, scientific and medical (ISM)-bands many wireless applications are used.

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