Industrial communication networks - Coexistence of wireless systems - Part 2: Coexistence management

IEC 62657-2:2022 this part:
• specifies the fundamental assumptions, concepts, parameters, and procedures for wireless communication coexistence;
• specifies coexistence parameters and how they are used in an application requiring wireless 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;
• helps the work of all persons involved with the relevant responsibilities to cope with the critical aspects at each phase of life-cycle of the wireless communication coexistence management in an industrial automation plant. Life-cycle aspects include: planning, design, installation, implementation, operation, maintenance, administration and training;
• 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;
• deals with the operational aspects of wireless communication coexistence regarding both the static human/tool-organization and the dynamic network self-organization.
This document provides a major contribution to national and regional regulations. It does not exempt devices from conforming to all requirements of national and regional regulations.

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

l'IEC 62657-2:2022 la présente partie:
spécifie les hypothèses, concepts, paramètres et procédures de base qui permettent la coexistence de communications sans fil;
spécifie les paramètres de coexistence et comment ils sont utilisés dans une application qui exige une coexistence sans fil;
fournit 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 le cycle de vie de la coexistence de communications sans fil;
facilite la tâche des personnes appelées à faire face aux aspects fondamentaux à chaque phase du cycle de vie de la gestion de coexistence de communications sans fil dans une installation d'automatisation industrielle. Les aspects du cycle de vie incluent: la planification, la conception, l'installation, la mise en œuvre, le fonctionnement, la maintenance, l'administration et la formation;
fournit une référence commune sur la coexistence de communications sans fil pour des sites d'automatisation industrielle sous forme de ligne directrice homogène aidant les utilisateurs à évaluer et mesurer les efforts de leur installation;
traite des aspects fonctionnels de la coexistence de communications sans fil concernant tant l'organisation statique homme-outil que l'auto-organisation dynamique du réseau.  Le présent document apporte une contribution majeure aux règlements nationaux et régionaux. Il ne dispense pas les appareils de se conformer à toutes les exigences de ces règlements.

General Information

Status
Published
Publication Date
08-Jun-2022
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
09-Jun-2022
Ref Project

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IEC 62657-2
Edition 3.0 2022-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks – Coexistence of wireless systems –
Part 2: Coexistence management
Réseaux industriels – Coexistence des systèmes sans fil –
Partie 2: Gestion de coexistence
IEC 62657-2:2022-06(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62657-2
Edition 3.0 2022-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks – Coexistence of wireless systems –
Part 2: Coexistence management
Réseaux industriels – Coexistence des systèmes sans fil –
Partie 2: Gestion de coexistence
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 33.040; 35.100 ISBN 978-2-8322-0973-8

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

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62657-2:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 7

INTRODUCTION ..................................................................................................................... 9

1 Scope ............................................................................................................................ 11

2 Normative references .................................................................................................... 11

3 Terms, definitions, abbreviated terms and conventions .................................................. 12

3.1 Terms and definitions ............................................................................................ 12

3.2 Abbreviated terms ................................................................................................. 27

3.3 Conventions .......................................................................................................... 28

4 Coexistence concept in industrial automation ................................................................ 28

4.1 Overview............................................................................................................... 28

4.2 Objective .............................................................................................................. 30

4.3 Necessity to implement a coexistence management .............................................. 32

4.4 Interference potential ............................................................................................ 33

4.5 Ancillary conditions ............................................................................................... 35

4.6 Requirements to wireless devices for support of coexistence management ........... 36

4.7 Concepts .............................................................................................................. 36

4.7.1 Manual coexistence management .................................................................. 36

4.7.2 Automated non-collaborative coexistence management ................................. 37

4.7.3 Automated collaborative coexistence management ........................................ 37

4.8 Best practices to achieve coexistence ................................................................... 38

4.9 Coexistence conceptual model .............................................................................. 40

4.10 Coexistence management and selection of a wireless solution .............................. 42

4.11 Coexistence management system ......................................................................... 44

5 Coexistence management parameters ........................................................................... 44

5.1 General ................................................................................................................. 44

5.1.1 Definition and usage of parameters ............................................................... 44

5.1.2 Physical link .................................................................................................. 44

5.2 Adjacent channel selectivity .................................................................................. 45

5.3 Antenna gain ........................................................................................................ 45

5.4 Antenna radiation pattern ...................................................................................... 45

5.5 Antenna type ........................................................................................................ 45

5.6 Communication availability .................................................................................... 46

5.7 Communication reliability ...................................................................................... 46

5.8 Bit rate of physical link .......................................................................................... 46

5.9 Blocked frequency list ........................................................................................... 46

5.10 Centre frequency .................................................................................................. 46

5.11 Area of operation .................................................................................................. 47

5.12 Communication load ............................................................................................. 47

5.13 Cut-off frequency .................................................................................................. 49

5.14 Data throughput .................................................................................................... 50

5.15 Distance between wireless devices ....................................................................... 50

5.16 Duty cycle ............................................................................................................. 51

5.17 Dwell time ............................................................................................................. 53

5.18 Equivalent isotropic radiated power....................................................................... 54

5.19 Equivalent radiated power ..................................................................................... 54

5.20 Frequency band .................................................................................................... 54

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IEC 62657-2:2022 © IEC 2022 – 3 –

5.21 Frequency bandwidth ............................................................................................ 54

5.22 Frequency channel ............................................................................................... 55

5.23 Frequency hopping sequence ............................................................................... 55

5.24 Future expansion plan .......................................................................................... 56

5.25 Geographical dimension of the plant ..................................................................... 56

5.26 Infrastructure device ............................................................................................. 56

5.27 Initiation of data transmission ............................................................................... 56

5.28 Interference type ................................................................................................... 56

5.29 Intervisibility.......................................................................................................... 57

5.30 ISM application ..................................................................................................... 57

5.31 Length of user data per transfer interval................................................................ 57

5.32 Limitation from neighbours of the plant ................................................................. 57

5.33 Maximum number of retransmissions .................................................................... 57

5.34 Mechanism for adaptivity ...................................................................................... 58

5.35 Medium access control mechanism ....................................................................... 58

5.36 Medium utilization factor ....................................................................................... 58

5.37 Message ............................................................................................................... 59

5.38 Modulation ............................................................................................................ 59

5.39 Natural environmental condition ............................................................................ 59

5.40 Network topology .................................................................................................. 59

5.41 Number of consecutive lost messages .................................................................. 60

5.42 Object movement .................................................................................................. 60

5.43 Operating time between failures ............................................................................ 60

5.44 Message loss ratio ................................................................................................ 60

5.45 Position of wireless devices .................................................................................. 61

5.46 Power spectral density .......................................................................................... 61

5.47 Purpose of the automation application .................................................................. 62

5.48 Receiver blocking ................................................................................................. 62

5.49 Receiver maximum input level ............................................................................... 62

5.50 Receiver sensitivity ............................................................................................... 62

5.51 Regional radio regulations .................................................................................... 62

5.52 Relative movement ............................................................................................... 63

5.53 Response time ...................................................................................................... 63

5.54 Security level ........................................................................................................ 63

5.55 Spatial coverage of the wireless communication system ....................................... 64

5.56 Spatial extent of the application ............................................................................ 64

5.57 Spurious response ................................................................................................ 64

5.58 Survival time ......................................................................................................... 64

5.59 Total radiated power ............................................................................................. 64

5.60 Transfer interval .................................................................................................... 64

5.61 Transmission gap .................................................................................................. 65

5.62 Transmission time ................................................................................................. 66

5.63 Transmitter output power ...................................................................................... 69

5.64 Transmitter sequence ........................................................................................... 69

5.65 Transmitter spectral mask ..................................................................................... 71

5.66 Update time .......................................................................................................... 71

5.67 Wireless device density ........................................................................................ 72

5.68 Wireless device type information ........................................................................... 72

5.69 Wireless communication solution density .............................................................. 73

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– 4 – IEC 62657-2:2022 © IEC 2022

5.70 Wireless technology or standard ........................................................................... 73

6 Coexistence management information structures ........................................................... 73

6.1 General ................................................................................................................. 73

6.2 General plant characteristic .................................................................................. 75

6.2.1 General ......................................................................................................... 75

6.2.2 General plant characteristic ........................................................................... 75

6.2.3 Passive environmental influences .................................................................. 76

6.2.4 Active environmental influences ..................................................................... 76

6.3 Application communication requirements .............................................................. 77

6.3.1 Overview ....................................................................................................... 77

6.3.2 Requirements influencing the characteristic of wireless solutions .................. 78

6.3.3 Performance requirements ............................................................................. 79

6.4 Wireless system type and wireless device type ..................................................... 79

6.4.1 Overview ....................................................................................................... 79

6.4.2 Wireless system type ..................................................................................... 80

6.4.3 Wireless device type ...................................................................................... 80

6.5 Wireless solution .................................................................................................. 83

6.5.1 Overview ....................................................................................................... 83

6.5.2 Wireless system solution ............................................................................... 83

6.5.3 Wireless device solution ................................................................................ 84

6.6 Application related characteristic parameters ........................................................ 85

7 Coexistence management process ................................................................................ 87

7.1 General ................................................................................................................. 87

7.1.1 Overview ....................................................................................................... 87

7.1.2 Documentation .............................................................................................. 87

7.1.3 Suitable documentation method ..................................................................... 89

7.1.4 Application of tools ........................................................................................ 89

7.2 Establishment of a coexistence management system ............................................ 89

7.2.1 Nomination of a coexistence manager ........................................................... 89

7.2.2 Responsibility of a coexistence manager ....................................................... 90

7.2.3 Support by wireless experts ........................................................................... 90

7.2.4 Training ......................................................................................................... 91

7.3 Maintaining coexistence management system ....................................................... 91

7.4 Phases of a coexistence management process ..................................................... 91

7.4.1 Investigation phase ........................................................................................ 91

7.4.2 Planning phase .............................................................................................. 94

7.4.3 Implementation phase.................................................................................... 96

7.4.4 Operation phase ............................................................................................ 97

8 Coexistence parameter templates .................................................................................. 99

Bibliography ........................................................................................................................ 106

Figure 1 – Issues of consideration ........................................................................................ 31

Figure 2 – Applications using frequency spectrum ................................................................ 31

Figure 3 – Progression of expense to achieve coexistence corresponding to the

application classes ............................................................................................................... 36

Figure 4 – Separation of wireless systems according to frequency and time ......................... 39

Figure 5 – Coexistence conceptual model ............................................................................. 41

Figure 6 – Flow chart of the coexistence conceptual model ................................................... 42

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IEC 62657-2:2022 © IEC 2022 – 5 –

Figure 7 – Selection of a wireless system in the coexistence management process .............. 43

Figure 8 – Communication load in case of two wireless devices ............................................ 48

Figure 9 – Communication load in the case of several wireless devices ................................ 49

Figure 10 – Cut-off frequencies derived from maximum power level ...................................... 50

Figure 11 – Distance of the wireless devices ........................................................................ 51

Figure 12 – Duty cycle .......................................................................................................... 52

Figure 13 – Maximum dwell time ........................................................................................... 53

Figure 14 – Power spectral density of an IEEE 802.15.4 system ........................................... 61

Figure 15 – Communication cycle, application event interval and machine cycle ................... 65

Figure 16 – Transmission gap ............................................................................................... 66

Figure 17 – Example of the density functions of transmission time ........................................ 67

Figure 18 – Example of the distribution functions of transmission time .................................. 68

Figure 19 – Transmitter sequence ......................................................................................... 70

Figure 20 – Transmitter spectral mask of an IEEE 802.15.4 system ...................................... 71

Figure 21 – Example of distribution functions of the update time ........................................... 72

Figure 22 – Principle for use of coexistence parameters ....................................................... 75

Figure 23 – Parameters to describe the general plant characteristic ..................................... 75

Figure 24 – Parameters to describe application communication requirements ...................... 78

Figure 25 – Parameters to describe wireless system type and device type ............................ 79

Figure 26 – Example of power spectral density and transmitter spectral mask ...................... 81

Figure 27 – Example of medium utilization in time and frequency .......................................... 82

Figure 28 – Parameters to describe a wireless communication solution ................................ 83

Figure 29 – Planning of a wireless system in the coexistence management process ............. 95

Figure 30 – Implementation and operation of a wireless system in the coexistence

management process ............................................................................................................ 98

Table 1 – Example of a classification of application communication requirements ................. 30

Table 2 – Application profile dependent observation time values ........................................... 52

Table 3 – Parameter options for frequency channel .............................................................. 55

Table 4 – Hierarchy of the characteristics ............................................................................. 74

Table 5 – List of parameters used to describe the general plant characteristic ...................... 76

Table 6 – List of parameters used to describe the passive environmental influences ............. 76

Table 7 – List of parameters used to describe the active environmental influences ............... 76

Table 8 – List of parameters used to describe the interference type ...................................... 77

Table 9 – List of parameters used to describe the requirements influencing the

characteristic of wireless solutions ........................................................................................ 78

Table 10 – List of characteristic parameters .......................................................................... 79

Table 11 – List of parameters used to describe the wireless system type .............................. 80

Table 12 – List of parameters used to describe the transmitter of a wireless device type ...... 82

Table 13 – List of parameters used to describe the receiver of a wireless device type .......... 83

Table 14 – List of parameters used to describe a wireless solution ....................................... 84

Table 15 – List of general parameters used to describe the wireless device solution ............. 84

Table 16 – List of parameters used to describe the transmitter of a wireless device

solution ................................................................................................................................. 85

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– 6 – IEC 62657-2:2022 © IEC 2022
Table 17 – List of parameters used to describe the receiver of a wireless device

solution ................................................................................................................................. 85

Table 18 – List of relevant characteristic parameters of wireless solutions ............................ 86

Table 19 – List of relevant statistical values of characteristic parameters .............................. 86

Table 20 – Template used to describe the general plant characteristic ................................ 100

Table 21 – Template used to describe the application communication requirements ........... 101

Table 22 – Template used to describe the wireless system type ......................................... 102

Table 23 – Template used to describe a wireless device type ............................................. 102

Table 24 – Template used to describe the wireless system solution .................................... 103

Table 25 – Template used to describe a wireless device solution ........................................ 104

Table 26 – Template used to describe the relevant characteristic parameters of

wireless solutions ............................................................................................................... 104

Table 27 – Template used to describe the relevant statistical values of characteristic

parameters ......................................................................................................................... 105

Table 28 – Template used to describe an interference type ................................................ 105

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IEC 62657-2:2022 © IEC 2022 – 7 –
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