IEC 62657-2:2013

Industrial communication networks - Wireless communication networks - Part 2: Coexistence management

IEC 62657-2:2013 specifies the fundamental assumptions, concepts, parameters, and procedure for wireless communication coexistence; provides guidelines, requirements, and best practices for wireless communication's availability and performance in an industrial automation plant; it covers the life cycle of wireless communication coexistence and provides a common point of reference for wireless communication coexistence for industrial automation sites as a homogeneous guideline to help the users assess and gauge their plant efforts. This first edition cancels and replaces IEC/TS 62657-2, published in 2011. The main changes with respect to the TS are:
- updated the normative references, terms, definitions, symbols, abbreviations;
- corrected spelling;
- changed figures to make them consistent with the text and vice versa;
- added and modified text to make the text more readable.

Réseaux de communication industriels - Réseaux de communication sans fil - Partie 2: Gestion de coexistence

La CEI 62657-2:2013 spécifie les hypothèses, concepts, paramètres et procédures de base permettant la coexistence de communications sans fil; stipule les lignes directrices, exigences et meilleures pratiques en matière de disponibilité et de performance des communications sans fil, dans une installation d'automatisation industrielle; elle couvre tout le cycle de vie de la coexistence des communications sans fil et fournit une référence commune sur la coexistence de communications sans fil pour des sites d'automatisation industrielle sous forme de recommandation homogène aidant les utilisateurs à évaluer et mesurer les efforts de leur installation. Cette première édition annule et remplace la CEI/TS 62657-2, parue en 2011. Les changements par rapport au TS sont:
- mise à jour des références normatives, termes, définitions, symboles, abréviations;
- correction de l'orthographe;
- changement des figures pour les rendre cohérentes avec le texte et vice versa;
- addition et modification du texte pour le rendre plus lisible.

General Information

• Status: Published
• Publication Date: 19-Aug-2013
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 33.040.40 - Data communication networks
• ICS: 35.110 - Networking
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 17 - TC 65/SC 65C/WG 17
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 11-May-2017

Relations

• Replaces: IEC TS 62657-2:2011 - Industrial communication networks - Wireless communication network - Part 2: Coexistence management
• Effective Date: 05-Sep-2023
• Revised: IEC 62657-2:2017 - Industrial communication networks - Wireless communication networks - Part 2: Coexistence management
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62657-2
®

Edition 1.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Industrial communication networks – Wireless communication networks –
Part 2: Coexistence management

Réseaux de communication industriels – Réseaux de communication sans fil –
Partie 2: Gestion de coexistence

IEC 62657-2:2013

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IEC 62657-2

®


Edition 1.0 2013-08




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Industrial communication networks – Wireless communication networks –

Part 2: Coexistence management




Réseaux de communication industriels – Réseaux de communication sans fil –

Partie 2: Gestion de coexistence
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XC


ICS 25.040.40; 33.040; 35.110 ISBN 978-2-8322-1048-2



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.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 62657-2 © IEC:2013
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, abbreviated terms and conventions . 10
3.1 Terms and definitions . 10
3.2 Abbreviated terms . 15
3.3 Conventions . 16
4 Coexistence concept in industrial automation . 16
4.1 Overview . 16
4.1.1 General . 16
4.1.2 Manual coexistence management . 18
4.1.3 Automated non-collaborative metrics-based coexistence
management. 18
4.1.4 Automated collaborative metrics-based coexistence management . 18
4.2 Objective . 18
4.3 Necessity to implement a coexistence management . 20
4.4 Interference potential . 22
4.5 Ancillary conditions . 24
4.6 Best practices to achieve coexistence . 24
4.7 Coexistence conceptual model . 27
4.8 Coexistence management and selection of a wireless communication

solution . 29
4.9 Coexistence management system . 31
5 Coexistence management parameters . 31
5.1 General . 31
5.2 Explanation of coexistence parameters . 31
5.2.1 Adjacent channel selectivity . 31
5.2.2 Antenna gain . 31
5.2.3 Antenna radiation pattern . 32
5.2.4 Bandwidth . 32
5.2.5 Bit rate of physical link . 32
5.2.6 Centre frequency . 32
5.2.7 Characteristic of the area of operation . 32
5.2.8 Communication load . 32
5.2.9 Cut-off frequency . 33
5.2.10 Data throughput . 34
5.2.11 Duty cycle . 34
5.2.12 Effective radiated power (EIRP, ERP) . 35
5.2.13 Frequency hopping procedure . 36
5.2.14 Future expansion plan . 36
5.2.15 Geographical dimension of the plant . 36
5.2.16 Infrastructure components . 36
5.2.17 Initiation of data transmission . 36
5.2.18 Length of user data per transmission interval . 36
5.2.19 Limitation from neighbors of the plant . 36
5.2.20 Maximum dwell time . 37

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62657-2 © IEC:2013 – 3 –
5.2.21 Maximum number of retransmissions . 37
5.2.22 Maximum transmitter sequence . 37
5.2.23 Mechanisms for adaptivity . 38
5.2.24 Medium access control mechanism. 39
5.2.25 Modulation . 39
5.2.26 Natural environmental conditions . 39
5.2.27 Device characterization parameters . 39
5.2.28 Other frequency users . 39
5.2.29 Packet loss rate (PLR) . 39
5.2.30 Physical links . 40
5.2.31 Positions of wireless devices and distances between them . 40
5.2.32 Power spectral density (PSD) . 40
5.2.33 Purpose of the automation application . 41
5.2.34 Radio channel . 41
5.2.35 Radio propagation conditions . 41
5.2.36 Receiver blocking . 42
5.2.37 Receiver maximum input level . 42
5.2.38 Receiver sensitivity. 42
5.2.39 Regional radio regulations . 42
5.2.40 Relative movement . 42
5.2.41 Reliability required . 42
5.2.42 Response time . 43
5.2.43 Security level required . 43
5.2.44 Spatial coverage of the wireless communication network . 43
5.2.45 Spurious response . 43
5.2.46 Topology . 44
5.2.47 Total radiated power (TRP). 44
5.2.48 Transmission gap . 44
5.2.49 Transmission interval . 45
5.2.50 Transmission time . 45
5.2.51 Transmitter spectral mask . 47
5.2.52 Type of antenna . 48
5.2.53 Update time . 48
5.2.54 Used frequency bands . 49
5.2.55 Wireless devices . 49
5.2.56 Wireless communication networks . 49
5.2.57 Wireless technology or standard . 50
6 Coexistence management information structures . 50
6.1 General . 50
6.2 General plant characteristic . 51
6.3 Application communication requirements . 52
6.3.1 Overview . 52
6.3.2 Requirements influencing the characteristic of wireless solutions . 52
6.3.3 Performance requirements . 53
6.4 Characteristic of wireless system type and wireless device type . 53
6.4.1 Overview . 53
6.4.2 Characteristic of wireless system type . 54
6.4.3 Characteristic of wireless devices type . 55
6.5 Characteristic of wireless communication solution . 57

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– 4 – 62657-2 © IEC:2013
6.5.1 Overview . 57
6.5.2 Characteristic of a wireless network solution . 58
6.5.3 Characteristic of wireless devices solution . 58
7 Coexistence management process . 59
7.1 General . 59
7.1.1 Overview . 59
7.1.2 Documentation . 60
7.1.3 Suitable documentation method . 62
7.1.4 Application of tools . 63
7.2 Establishment of a coexistence management system . 63
7.2.1 Nomination of a coexistence manager . 63
7.2.2 Responsibility of a coexistence manager . 64
7.2.3 Support by radio experts. 64
7.2.4 Training . 64
7.3 Maintaining coexistence management system . 65
7.4 Phases of a coexistence management process . 65
7.4.1 Investigation phase . 65
7.4.2 Planning phase . 68
7.4.3 Implementation phase . 70
7.4.4 Operation phase . 71
8 Coexistence parameter templates. 73
Bibliography . 77

Figure 1 – Area of consideration . 20
Figure 2 – Examples of wireless equipment in industrial environments . 21
Figure 3 – Progression of expense to achieve coexistence corresponding to the
application classes . 24
Figure 4 – Separation of wireless communication systems according to frequency and
time . 25
Figure 5 – Coexistence conceptual model . 28
Figure 6 – Flow chart of the coexistence conceptual model . 29
Figure 7 – Selection of a wireless communication system in the coexistence
management process . 30
Figure 8 – Communication load in case of two wireless devices . 33
Figure 9 – Communication load in the case of several wireless devices . 33
Figure 10 – Cut-off frequencies derived from maximum power level . 34
Figure 11 – Duty cycle . 35
Figure 12 – Maximum dwell time . 37
Figure 13 – Maximum transmitter sequence . 38
Figure 14 – Distance of the radio components . 40
Figure 15 – Power spectral density of an IEEE 802.15.4 system . 41
Figure 16 – Minimum transmission gap . 44
Figure 17 – Communication cycle, application event interval and machine cycle . 45
Figure 18 – Example of the density functions of transmission time . 46
Figure 19 – Example of the distribution functions of transmission time . 47
Figure 20 – Transmitter spectral mask of an IEEE 802.15.4 system . 48

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62657-2 © IEC:2013 – 5 –
Figure 21 – Example of distribution functions of the update time . 49
Figure 22 – Principle for use of coexistence parameters . 50
Figure 23 – Parameters to describe the general plant characteristic . 51
Figure 24 – Parameters to describe application communication requirements . 52
Figure 25 – Parameters to describe wireless network type and device type . 54
Figure 26 – Power spectral density and transmitter spectral mask of a DECT system . 56
Figure 27 – Medium utilization in time and frequency of a DECT system . 56
Figure 28 – Parameters to describe a wireless communication solution . 58
Figure 29 – Relations of the documents in a coexistence management system
specification . 62
Figure 30 – Planning of a wireless communication system in the coexistence
management process . 69
Figure 31 – Implementation and operation of a wireless communication system in the
coexistence management process . 72

Table 1 – Classification of application communication requirements . 19
Table 2 – Application profile dependent observation time values . 35
Table 3 – List of parameters used to describe the general plant characteristic . 51
Table 4 – List of parameters used to describe the requirements influencing the
characteristic of wireless solutions . 53
Table 5 – List of parameters used to describe performance requirements . 53
Table 6 – List of parameters used to describe the wireless system type . 55
Table 7 – List of parameters used to describe the transmitter of a wireless device type . 57
Table 8 – List of parameters used to describe the receiver of a wireless device type . 57
Table 9 – List of parameters used to describe a wireless network solution . 58
Table 10 – List of parameters used to describe the transmitter of a wireless device
solution . 59
Table 11 – List of parameters used to describe the receiver of a wireless device
solution . 59
Table 12 – Template used to describe the general plant characteristic . 73
Table 13 – Template used to describe the application communication requirements . 74
Table 14 – Template used to describe the wireless system type . 74
Table 15 – Template used to describe a wireless device type . 75
Table 16 – Template used to describe the wireless network solution . 75
Table 17 – Template used to describe a wireless device solution . 76

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
WIRELESS COMMUNICATION NETWORKS –

Part 2: Coexistence management


FOREWORD
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International Standard IEC 62657-2 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/736/FDIS 65C/740/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This first edition cancels and replaces IEC/TS 62657-2, published in 2011.

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62657-2 © IEC:2013 – 7 –
The main changes with respect to the TS are:
a) updated the normative references, terms, definitions, symbols, abbreviations;
b) corrected spelling;
c) changed figures to make them consistent with the text and vice versa;
d) added and modified text to make the text more readable.
This publication has been dra
...