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eLibrary > BS EN IEC 62657-2:2025 Industrial networks. Coexistence of wireless systems - Coexistence management >

BS EN IEC 62657-2:2025 Industrial networks. Coexistence of wireless systems - Coexistence management, 2025

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BS EN IEC 62657-2:2025 Industrial networks. Coexistence of wireless systems - Coexistence management, 2025

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European foreword
Endorsement notice
Annex ZA (normative) Normative references to international publications with their corresponding European publications [Go to Page]
English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and conventions [Go to Page]
3.1 Terms and definitions
3.2 Abbreviated terms
3.3 Conventions
4 Coexistence concept in industrial automation [Go to Page]
4.1 Overview
4.2 Objective
Tables [Go to Page]
Table 1 – Example of a classification of application communication requirements
Figures [Go to Page]
Figure 1 – Issues of consideration
Figure 2 – Applications using frequency spectrum
4.3 Necessity to implement a coexistence management
4.4 Interference potential
4.5 Ancillary conditions
4.6 Requirements to wireless devices for support of coexistence management
4.7 Concepts [Go to Page]
4.7.1 Manual coexistence management
Figure 3 – Progression of expense to achieve coexistence corresponding to the application classes [Go to Page]
4.7.2 Automated non-collaborative coexistence management
4.7.3 Automated collaborative coexistence management
4.8 Best practices to achieve coexistence
Figure 4 – Separation of wireless systems according to frequency and time
4.9 Coexistence conceptual model
Figure 5 – Coexistence conceptual model
4.10 Coexistence management and selection of a wireless solution
Figure 6 – Flow chart of the coexistence conceptual model
Figure 7 – Selection of a wireless systemin the coexistence management process
4.11 Coexistence management system
5 Coexistence management parameters [Go to Page]
5.1 General [Go to Page]
5.1.1 Definition and usage of parameters
5.1.2 Physical link
5.2 Adjacent channel selectivity
5.3 Antenna gain
5.4 Antenna radiation pattern
5.5 Antenna type
5.6 Communication availability
5.7 Communication reliability
5.8 Bit rate of physical link
5.9 Blocked frequency list
5.10 Centre frequency
5.11 Area of operation
5.12 Communication load
Figure 8 – Communication load in case of two wireless devices
5.13 Cut-off frequency
Figure 9 – Communication load in the case of several wireless devices
5.14 Data throughput
5.15 Distance between wireless devices
Figure 10 – Cut-off frequencies derived from maximum power level
5.16 Duty cycle
Figure 11 – Distance of the wireless devices
Figure 12 – Duty cycle
Table 2 – Application profile dependent observation time values
5.17 Dwell time
Figure 13 – Maximum dwell time
5.18 Equivalent isotropic radiated power
5.19 Equivalent radiated power
5.20 Frequency band
5.21 Frequency bandwidth
5.22 Frequency channel
5.23 Frequency hopping sequence
Table 3 – Parameter options for frequency channel
5.24 Future expansion plan
5.25 Geographical dimension of the plant
5.26 Infrastructure device
5.27 Initiation of data transmission
5.28 Interference type
5.29 Intervisibility
5.30 ISM application
5.31 Length of user data per transfer interval
5.32 Limitation from neighbours of the plant
5.33 Maximum number of retransmissions
5.34 Mechanism for adaptivity
5.35 Medium access control mechanism
5.36 Medium utilization factor
5.37 Message
5.38 Modulation
5.39 Natural environmental condition
5.40 Network topology
5.41 Number of consecutive lost messages
5.42 Object movement
5.43 Operating time between failures
5.44 Message loss ratio
5.45 Position of wireless devices
5.46 Power spectral density
Figure 14 – Power spectral density of an IEEE Std.802.15.4 system
5.47 Purpose of the automation application
5.48 Receiver blocking
5.49 Receiver maximum input level
5.50 Receiver sensitivity
5.51 Regional radio regulations
5.52 Relative movement
5.53 Response time
5.54 Security level
5.55 Spatial coverage of the wireless communication system
5.56 Spatial extent of the application
5.57 Spurious response
5.58 Survival time
5.59 Total radiated power
5.60 Transfer interval
5.61 Transmission gap
Figure 15 – Communication cycle, application event interval and machine cycle
5.62 Transmission time
Figure 16 – Transmission gap
Figure 17 – Example of the density functions of transmission time
Figure 18 – Example of the distribution functions of transmission time
5.63 Transmitter output power
5.64 Transmitter sequence
Figure 19 – Transmitter sequence
5.65 Transmitter spectral mask
5.66 Update time
Figure 20 – Transmitter spectral mask of an IEEE Std.802.15.4 system
5.67 Wireless device density
5.68 Wireless device type information
Figure 21 – Example of distribution functions of the update time
5.69 Wireless communication solution density
5.70 Wireless technology or standard
6 Coexistence management information structures [Go to Page]
6.1 General
Table 4 – Hierarchy of the characteristic parameters
6.2 General plant characteristic [Go to Page]
6.2.1 General
6.2.2 General plant characteristic
Figure 22 – Principle for use of coexistence parameters
Figure 23 – Parameters to describe the general plant characteristic [Go to Page]
6.2.3 Passive environmental influences
6.2.4 Active environmental influences
Table 5 – List of parameters used to describe the general plant characteristic
Table 6 – List of parameters used to describe the passive environmental influences
Table 7 – List of parameters used to describe the active environmental influences
6.3 Application communication requirements [Go to Page]
6.3.1 Overview
Table 8 – List of parameters used to describe the interference type [Go to Page]
6.3.2 Requirements influencing the characteristic of wireless solutions
Figure 24 – Parameters to describe application communication requirements
Table 9 – List of parameters used to describe the requirements influencing the characteristic of wireless solutions [Go to Page]
6.3.3 Performance requirements
6.4 Wireless system type and wireless device type [Go to Page]
6.4.1 Overview
Figure 25 – Parameters to describe wireless system type and device type
Table 10 – List of characteristic parameters [Go to Page]
6.4.2 Wireless system type
6.4.3 Wireless device type
Table 11 – List of parameters used to describe the wireless system type
Figure 26 – Example of power spectral density and transmitter spectral mask
Figure 27 – Example of medium utilization in time and frequency
Table 12 – List of parameters used to describe the transmitter of a wireless device type
6.5 Wireless solution [Go to Page]
6.5.1 Overview
6.5.2 Wireless system solution
Figure 28 – Parameters to describe a wireless communication solution
Table 13 – List of parameters used to describe the receiver of a wireless device type [Go to Page]
6.5.3 Wireless device solution
Table 14 – List of parameters used to describe a wireless solution
Table 15 – List of general parameters used to describe the wireless device solution
6.6 Application related characteristic parameters
Table 16 – List of parameters used to describe the transmitterof a wireless device solution
Table 17 – List of parameters used to describe the receiver of a wireless device solution
6.7 Radio environment related performance parameters
Table 18 – List of relevant characteristic parameters of wireless solutions
Table 19 – List of relevant statistical values of characteristic parameters
6.8 Wireless communication solution related performance parameters
Table 20 – List of radio environment related performance parameters
7 Coexistence management process [Go to Page]
7.1 General [Go to Page]
7.1.1 Overview
Table 21 – List of wireless communication solution related performance parameters [Go to Page]
7.1.2 Documentation
7.1.3 Suitable documentation method
7.1.4 Application of tools
7.2 Establishment of a coexistence management system [Go to Page]
7.2.1 Nomination of a coexistence manager
7.2.2 Responsibility of a coexistence manager
7.2.3 Support by wireless experts
7.2.4 Training
7.3 Maintaining coexistence management system
7.4 Phases of a coexistence management process [Go to Page]
7.4.1 Investigation phase
7.4.2 Planning phase
Figure 29 – Planning of a wireless system inthe coexistence management process [Go to Page]
7.4.3 Implementation phase
7.4.4 Operation phase
Figure 30 – Implementation and operation of a wireless system in the coexistence management process
8 Coexistence parameter templates [Go to Page]
Table 22 – Template used to describe the general plant characteristic
Table 23 – Template used to describe the application communication requirements
Table 24 – Template used to describe the wireless system type
Table 25 – Template used to describe a wireless device type
Table 26 – Template used to describe the wireless system solution
Table 27 – Template used to describe a wireless device solution
Table 28 – Template used to describe the relevant characteristic parameters of wireless solutions
Table 29 – Template used to describe the relevant statistical values of characteristic parameters
Table 30 – Template used to describe an interference type
Annex A (normative) Parameter usage in the IEC 62657 series [Go to Page]
A.1 General
A.2 Outline of the IEC 62657 series
A.3 Parameter usage in coexistence management process in IEC 62657-2
Figure A.1 – Usage of parameters in IEC 62657-2
Table A.1 – Example for parameters usage in coexistence management process
A.4 Parameters usage among the IEC 62657 series
Figure A.2 – Parameter usage among the IEC 62657 series
Bibliography [Go to Page]

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