IEC 61784-5-2:2018
(Main)Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2
Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2
IEC 61784-5-2:2018 specifies the installation profiles for CPF 2 (CIP™ ). This contribution contains a number of related files covering the communication profiles to be used in conjunction with IEC 61918. The installation profile documents contained herewith provide the installation profiles of the communication profiles (CP) of a specific communication profile family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by supplementing, modifying, or replacing the other requirements. The installation profiles are specified in the annexes. These annexes are read in conjunction with IEC 61918. This fourth edition cancels and replaces the third edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) references to ISO/IEC 24702 have been replaced with references to ISO/IEC 11801-3 in Table B.1;
b) errors have been corrected;
c) Tables B11 and B13 have been added in support of 1,000 Mb/s 4 Pair Ethernet;
d) Clarification of dual power supplies for Annex C.
Réseaux de communication industriels - Profils - Partie 5-2: Installation des bus de terrain - Profils d’installation pour CPF 2
L‘IEC 61784-5-2:2018 spécifie les profils d'installation pour le CPF 2 (CIP™ ). La présente contribution contient un certain nombre de fichiers associés couvrant les profils de communication à utiliser conjointement avec la CEI 61918. Les documents de profil d'installation contenus ci-joint fournissent les profils d'installation des profils de communication (CP) d'une famille de profils de communication (CPF) spécifique en indiquant quelles exigences de la CEI 61918 s'appliquent pleinement et, le cas échéant, en complétant, modifiant ou remplaçant les autres exigences. Les profils d'installation sont spécifiés dans les annexes. Ces annexes sont lues conjointement avec la CEI 61918. Cette quatrième édition annule et remplace la troisième édition publiée en 2013. Cette édition constitue une révision technique.
Cette édition comprend les modifications techniques significatives suivantes par rapport à l'édition précédente :
a) les références à l'ISO/IEC 24702 ont été remplacées par des références à l'ISO/IEC 11801-3 dans le Tableau B.1 ;
b) des erreurs ont été corrigées ;
c) Les Tableaux B11 et B13 ont été ajoutés pour prendre en charge l'Ethernet à 4 paires de 1,000 Mb/s ;
d) Clarification des alimentations doubles pour l'Annexe C.
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IEC 61784-5-2
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Industrial communication networks – Profiles –
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IEC 61784-5-2
®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-5938-2
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 61784-5-2:2018 © IEC 2018
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
2 Normative references . 13
3 Terms, definitions and abbreviated terms . 13
4 CPF 2: Overview of installation profiles . 13
5 Installation profile conventions . 14
6 Conformance to installation profiles . 15
Annex A (normative) CP 2/1 (ControlNet™) specific installation profile . 16
A.1 Installation profile scope . 16
A.2 Normative references . 16
A.3 Installation profile terms, definitions, and abbreviated terms . 16
A.3.1 Terms and definitions. 16
A.3.2 Abbreviated terms . 16
A.3.3 Conventions for installation profiles . 16
A.4 Installation planning . 17
A.4.1 General . 17
A.4.2 Planning requirements . 18
A.4.3 Network capabilities . 19
A.4.4 Selection and use of cabling components . 25
A.4.5 Cabling planning documentation . 43
A.4.6 Verification of cabling planning specification . 43
A.5 Installation implementation . 43
A.5.1 General requirements . 43
A.5.2 Cable installation . 43
A.5.3 Connector installation . 45
A.5.4 Terminator installation . 54
A.5.5 Device installation . 54
A.5.6 Coding and labelling . 56
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 57
A.5.8 As-implemented cabling documentation . 58
A.6 Installation verification and installation acceptance test . 58
A.6.1 General . 58
A.6.2 Installation verification . 58
A.6.3 Installation acceptance test . 61
A.7 Installation administration . 63
A.8 Installation maintenance and installation troubleshooting . 63
A.8.1 General . 63
A.8.2 Maintenance . 63
A.8.3 Troubleshooting . 63
A.8.4 Specific requirements for maintenance and troubleshooting . 68
Annex B (normative) CP 2/2 (EtherNet/IP™) specific installation profile . 69
B.1 Installation profile scope . 69
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IEC 61784-5-2:2018 © IEC 2018 – 3 –
B.2 Normative references . 69
B.3 Installation profile terms, definitions, and abbreviated terms . 69
B.3.1 Terms and definitions. 69
B.3.2 Abbreviated terms . 69
B.3.3 Conventions for installation profiles . 70
B.4 Installation planning . 70
B.4.1 General . 70
B.4.2 Planning requirements . 71
B.4.3 Network capabilities . 71
B.4.4 Selection and use of cabling components . 76
B.4.5 Cabling planning documentation . 92
B.4.6 Verification of cabling planning specification . 92
B.5 Installation implementation . 92
B.5.1 General requirements . 92
B.5.2 Cable installation . 92
B.5.3 Connector installation . 93
B.5.4 Terminator installation . 94
B.5.5 Device installation . 94
B.5.6 Coding and labelling . 94
B.5.7 Earthing and bonding of equipment and devices and shield cabling . 94
B.5.8 As-implemented cabling documentation . 96
B.6 Installation verification and installation acceptance test . 96
B.6.1 General . 96
B.6.2 Installation verification . 96
B.6.3 Installation acceptance test . 98
B.7 Installation administration . 99
B.8 Installation maintenance and installation troubleshooting . 99
Annex C (normative) CP 2/3 (DeviceNet™) specific installation profile . 100
C.1 Installation profile scope . 100
C.2 Normative references . 100
C.3 Installation profile terms, definitions, and abbreviated terms . 100
C.3.1 Terms and definitions. 100
C.3.2 Abbreviated terms . 100
C.3.3 Conventions for installation profiles . 100
C.4 Installation planning . 101
C.4.1 General . 101
C.4.2 Planning requirements . 102
C.4.3 Network capabilities . 103
C.4.4 Selection and use of cabling components . 119
C.4.5 Cabling planning documentation . 129
C.4.6 Verification of cabling planning specification . 129
C.5 Installation implementation . 129
C.5.1 General requirements . 129
C.5.2 Cable installation . 129
C.5.3 Connector installation . 131
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– 4 – IEC 61784-5-2:2018 © IEC 2018
C.5.4 Terminator installation . 144
C.5.5 Device installation . 146
C.5.6 Coding and labelling . 150
C.5.7 Earthing and bonding of equipment and devices and shield cabling . 150
C.5.8 As-implemented cabling documentation . 151
C.6 Installation verification and installation acceptance test . 151
C.6.1 General . 151
C.6.2 Installation verification . 151
C.6.3 Installation acceptance test . 154
C.7 Installation administration . 155
C.8 Installation maintenance and installation troubleshooting . 155
C.8.1 General . 155
C.8.2 Maintenance . 155
C.8.3 Troubleshooting . 155
C.8.4 Specific requirements for maintenance and troubleshooting . 155
Annex D (informative) Additional information . 159
D.1 Network validation check sheet for CP 2/3 (DeviceNet) . 159
Bibliography . 163
Figure 1 – Standards relationships . 12
Figure A.1 – Interconnection of CPF 2 networks . 17
Figure A.2 – Overview of CPF 2/1 networks . 18
Figure A.3 – Drop cable requirements . 20
Figure A.4 – Placement of BNC/TNC plugs . 20
Figure A.5 – Placement of terminators . 21
Figure A.6 – Extending a network using repeaters . 21
Figure A.7 – Extending a network using active star topology . 21
Figure A.8 – Links . 22
Figure A.9 – Extending the network beyond 99 nodes . 22
Figure A.10 – Maximum allowable taps per segment . 31
Figure A.11 – Example of repeaters in star configuration . 32
Figure A.12 – Repeaters in parallel . 33
Figure A.13 – Repeaters in combination series and parallel . 34
Figure A.14 – Ring repeater . 34
Figure A.15 – Installing bulkheads . 35
Figure A.16 – Coaxial BNC and TNC terminators . 36
Figure A.17 – Terminator placement in a segment . 36
Figure A.18 – RC Shield Termination in Active Devices . 38
Figure A.19 – Redundant network icons . 39
Figure A.20 – Redundant coax media . 39
Figure A.21 – Redundant fibre media . 39
Figure A.22 – Repeaters in series versus length difference for coax media . 40
Figure A.23 – Repeaters in series versus length difference for fibre media . 41
Figure A.24 – Example of redundant coax network with repeaters . 41
Figure A.25 – Example of improper redundant node connection . 42
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IEC 61784-5-2:2018 © IEC 2018 – 5 –
Figure A.26 – Example tool kit for installing BNC connectors . 46
Figure A.27 – Calibration of coaxial stripper . 46
Figure A.28 – Coax PVC strip length detail (informative) . 47
Figure A.29 – Memory cartridge and blade . 48
Figure A.30 – Cable position . 48
Figure A.31 – Locking the cable . 48
Figure A.32 – Stripping the cable . 49
Figure A.33 – Install the crimp ferrule . 49
Figure A.34 – Cable preparation for PVC type cables (informative) . 50
Figure A.35 – Cable preparation for FEP type cables (informative) . 50
Figure A.36 – Strip guides . 50
Figure A.37 – Using the flare tool . 51
Figure A.38 – Expanding the shields . 51
Figure A.39 – Install the centre pin . 51
Figure A.40 – Crimping the centre pin . 52
Figure A.41 – Installing the connector body . 52
Figure A.42 – Installing the ferrule . 52
Figure A.43 – Crimp tool . 53
Figure A.44 – Sealed IP65/67 cable . 54
Figure A.45 – Terminator placement . 54
Figure A.46 – Mounting the taps . 55
Figure A.47 – Mounting the tap assembly using the universal mounting bracket . 56
Figure A.48 – Mounting the tap using tie wraps or screws . 56
Figure A.49 – Redundant network icons . 57
Figure A.50 – Network test tool . 59
Figure A.51 – Shorting the cable to test for continuity . 60
Figure A.52 – Testing fibre segments . 62
Figure A.53 – Multi-fibre backbone cable housing . 64
Figure A.54 – Repeater adapter module . 64
Figure A.55 – Short and medium distance fibre module LEDs . 66
Figure A.56 – Long and extra long repeater module LEDs . 67
Figure B.1 – Interconnection of CPF 2 networks . 70
Figure B.2 – Redundant linear bus . 72
Figure B.3 – Peer-to-peer connections . 72
Figure B.4 – Mated connections . 75
Figure B.5 – The 8-way modular sealed jack & plug (plastic housing) . 82
Figure B.6 – The 8-way modular sealed jack & plug (metal housing) . 82
Figure B.7 – M12-4 connectors . 83
Figure B.8 – Example of a metallic shell M12-8 X-coding connectors . 84
Figure B.9 – Simplex LC connector . 85
Figure B.10 – Duplex LC connector . 85
Figure B.11 – IP65/67 sealed duplex LC connector . 85
Figure B.12 – IP65/67 sealed duplex SC-RJ connector . 86
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– 6 – IEC 61784-5-2:2018 © IEC 2018
Figure B.13 – M12-4 to 8-way modular bulkhead . 88
Figure B.14 – The 8-way modular sealed jack & plug (plastic housing) . 93
Figure B.15 – The 8-way modular sealed jack & plug (metal housing) . 93
Figure B.16 – M12-4 connectors . 94
Figure B.17 – Earthing of cable shield . 96
Figure C.1 – Interconnection of CPF 2 networks . 101
Figure C.2 – Connection to generic cabling . 102
Figure C.3 – DeviceNet cable system uses a trunk/drop line topology . 104
Figure C.4 – Measuring the trunk length . 106
Figure C.5 – Measuring the trunk and drop length . 106
Figure C.6 – Measuring drop cable in a network with multiports . 107
Figure C.7 – Removable device using open-style connectors . 107
Figure C.8 – Fixed connection using open-style connector . 108
Figure C.9 – Open-style connector pin out . 108
Figure C.10 – Open-style connector pin out 10 position . 108
Figure C.11 – Power Bus Current derate as a function of temperature differential . 111
Figure C.12 – Power supply sizing example . 112
Figure C.13 – Current limit for thick cable for one power supply . 113
Figure C.14 – Example of a continuous power bus . 114
Figure C.15 – Current limit for thick cable and two power supplies common V+ . 115
Figure C.16 – Worst-case scenario . 116
Figure C.17 – Example using the lookup method . 116
Figure C.18 – One power supply end connected . 118
Figure C.19 – Segmenting power in the power bus . 119
Figure C.20 – Segmenting the power bus using power taps . 119
Figure C.21 – Thick cable construction . 130
Figure C.22 – Cable Type I construction . 130
Figure C.23 – Thin cable construction . 131
Figure C.24 – Flat cable construction . 131
Figure C.25 – Cable preparation . 132
Figure C.26 – Connector assembly . 132
Figure C.28 – M12 connector pin assignment . 133
Figure C.29 – Mini connector pin assignment . 133
Figure C.30 – Preparation of cable end . 134
Figure C.31 – Shrink wrap installation . 134
Figure C.32 – Wire preparation . 134
Figure C.33 – Open-style connector (female) . 135
Figure C.34 – Open-style (male plug) . 135
Figure C.35 – Flat cable.
...
IEC 61784-5-2
®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2
Réseaux de communication industriels – Profils –
Partie 5-2: Installation des bus de terrain – Profils d’installation pour CPF 2
IEC 61784-5-2:2018-08(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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International Standards for all electrical, electronic and related technologies.
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IEC 61784-5-2
®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2
Réseaux de communication industriels – Profils –
Partie 5-2: Installation des bus de terrain – Profils d’installation pour CPF 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-1006-0
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
---------------------- Page: 3 ----------------------
– 2 – IEC 61784-5-2:2018 © IEC 2018
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
2 Normative references . 13
3 Terms, definitions and abbreviated terms . 13
4 CPF 2: Overview of installation profiles . 13
5 Installation profile conventions . 14
6 Conformance to installation profiles . 15
Annex A (normative) CP 2/1 (ControlNet™) specific installation profile . 16
A.1 Installation profile scope . 16
A.2 Normative references . 16
A.3 Installation profile terms, definitions, and abbreviated terms . 16
A.3.1 Terms and definitions. 16
A.3.2 Abbreviated terms . 16
A.3.3 Conventions for installation profiles . 16
A.4 Installation planning . 17
A.4.1 General . 17
A.4.2 Planning requirements . 18
A.4.3 Network capabilities . 19
A.4.4 Selection and use of cabling components . 25
A.4.5 Cabling planning documentation . 43
A.4.6 Verification of cabling planning specification . 43
A.5 Installation implementation . 43
A.5.1 General requirements . 43
A.5.2 Cable installation . 43
A.5.3 Connector installation . 45
A.5.4 Terminator installation . 54
A.5.5 Device installation . 54
A.5.6 Coding and labelling . 56
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 57
A.5.8 As-implemented cabling documentation . 58
A.6 Installation verification and installation acceptance test . 58
A.6.1 General . 58
A.6.2 Installation verification . 58
A.6.3 Installation acceptance test . 61
A.7 Installation administration . 63
A.8 Installation maintenance and installation troubleshooting . 63
A.8.1 General . 63
A.8.2 Maintenance . 63
A.8.3 Troubleshooting . 63
A.8.4 Specific requirements for maintenance and troubleshooting . 68
Annex B (normative) CP 2/2 (EtherNet/IP™) specific installation profile . 69
B.1 Installation profile scope . 69
---------------------- Page: 4 ----------------------
IEC 61784-5-2:2018 © IEC 2018 – 3 –
B.2 Normative references . 69
B.3 Installation profile terms, definitions, and abbreviated terms . 69
B.3.1 Terms and definitions. 69
B.3.2 Abbreviated terms . 69
B.3.3 Conventions for installation profiles . 70
B.4 Installation planning . 70
B.4.1 General . 70
B.4.2 Planning requirements . 71
B.4.3 Network capabilities . 71
B.4.4 Selection and use of cabling components . 76
B.4.5 Cabling planning documentation . 92
B.4.6 Verification of cabling planning specification . 92
B.5 Installation implementation . 92
B.5.1 General requirements . 92
B.5.2 Cable installation . 92
B.5.3 Connector installation . 93
B.5.4 Terminator installation . 94
B.5.5 Device installation . 94
B.5.6 Coding and labelling . 94
B.5.7 Earthing and bonding of equipment and devices and shield cabling . 94
B.5.8 As-implemented cabling documentation . 96
B.6 Installation verification and installation acceptance test . 96
B.6.1 General . 96
B.6.2 Installation verification . 96
B.6.3 Installation acceptance test . 98
B.7 Installation administration . 99
B.8 Installation maintenance and installation troubleshooting . 99
Annex C (normative) CP 2/3 (DeviceNet™) specific installation profile . 100
C.1 Installation profile scope . 100
C.2 Normative references . 100
C.3 Installation profile terms, definitions, and abbreviated terms . 100
C.3.1 Terms and definitions. 100
C.3.2 Abbreviated terms . 100
C.3.3 Conventions for installation profiles . 100
C.4 Installation planning . 101
C.4.1 General . 101
C.4.2 Planning requirements . 102
C.4.3 Network capabilities . 103
C.4.4 Selection and use of cabling components . 119
C.4.5 Cabling planning documentation . 129
C.4.6 Verification of cabling planning specification . 129
C.5 Installation implementation . 129
C.5.1 General requirements . 129
C.5.2 Cable installation . 129
C.5.3 Connector installation . 131
---------------------- Page: 5 ----------------------
– 4 – IEC 61784-5-2:2018 © IEC 2018
C.5.4 Terminator installation . 144
C.5.5 Device installation . 146
C.5.6 Coding and labelling . 150
C.5.7 Earthing and bonding of equipment and devices and shield cabling . 150
C.5.8 As-implemented cabling documentation . 151
C.6 Installation verification and installation acceptance test . 151
C.6.1 General . 151
C.6.2 Installation verification . 151
C.6.3 Installation acceptance test . 154
C.7 Installation administration . 155
C.8 Installation maintenance and installation troubleshooting . 155
C.8.1 General . 155
C.8.2 Maintenance . 155
C.8.3 Troubleshooting . 155
C.8.4 Specific requirements for maintenance and troubleshooting . 155
Annex D (informative) Additional information . 159
D.1 Network validation check sheet for CP 2/3 (DeviceNet) . 159
Bibliography . 163
Figure 1 – Standards relationships . 12
Figure A.1 – Interconnection of CPF 2 networks . 17
Figure A.2 – Overview of CPF 2/1 networks . 18
Figure A.3 – Drop cable requirements . 20
Figure A.4 – Placement of BNC/TNC plugs . 20
Figure A.5 – Placement of terminators . 21
Figure A.6 – Extending a network using repeaters . 21
Figure A.7 – Extending a network using active star topology . 21
Figure A.8 – Links . 22
Figure A.9 – Extending the network beyond 99 nodes . 22
Figure A.10 – Maximum allowable taps per segment . 31
Figure A.11 – Example of repeaters in star configuration . 32
Figure A.12 – Repeaters in parallel . 33
Figure A.13 – Repeaters in combination series and parallel . 34
Figure A.14 – Ring repeater . 34
Figure A.15 – Installing bulkheads . 35
Figure A.16 – Coaxial BNC and TNC terminators . 36
Figure A.17 – Terminator placement in a segment . 36
Figure A.18 – RC Shield Termination in Active Devices . 38
Figure A.19 – Redundant network icons . 39
Figure A.20 – Redundant coax media . 39
Figure A.21 – Redundant fibre media . 39
Figure A.22 – Repeaters in series versus length difference for coax media . 40
Figure A.23 – Repeaters in series versus length difference for fibre media . 41
Figure A.24 – Example of redundant coax network with repeaters . 41
Figure A.25 – Example of improper redundant node connection . 42
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Figure A.26 – Example tool kit for installing BNC connectors . 46
Figure A.27 – Calibration of coaxial stripper . 46
Figure A.28 – Coax PVC strip length detail (informative) . 47
Figure A.29 – Memory cartridge and blade . 48
Figure A.30 – Cable position . 48
Figure A.31 – Locking the cable . 48
Figure A.32 – Stripping the cable . 49
Figure A.33 – Install the crimp ferrule . 49
Figure A.34 – Cable preparation for PVC type cables (informative) . 50
Figure A.35 – Cable preparation for FEP type cables (informative) . 50
Figure A.36 – Strip guides . 50
Figure A.37 – Using the flare tool . 51
Figure A.38 – Expanding the shields . 51
Figure A.39 – Install the centre pin . 51
Figure A.40 – Crimping the centre pin . 52
Figure A.41 – Installing the connector body . 52
Figure A.42 – Installing the ferrule . 52
Figure A.43 – Crimp tool . 53
Figure A.44 – Sealed IP65/67 cable . 54
Figure A.45 – Terminator placement . 54
Figure A.46 – Mounting the taps . 55
Figure A.47 – Mounting the tap assembly using the universal mounting bracket . 56
Figure A.48 – Mounting the tap using tie wraps or screws . 56
Figure A.49 – Redundant network icons . 57
Figure A.50 – Network test tool . 59
Figure A.51 – Shorting the cable to test for continuity . 60
Figure A.52 – Testing fibre segments . 62
Figure A.53 – Multi-fibre backbone cable housing . 64
Figure A.54 – Repeater adapter module . 64
Figure A.55 – Short and medium distance fibre module LEDs . 66
Figure A.56 – Long and extra long repeater module LEDs . 67
Figure B.1 – Interconnection of CPF 2 networks . 70
Figure B.2 – Redundant linear bus . 72
Figure B.3 – Peer-to-peer connections . 72
Figure B.4 – Mated connections . 75
Figure B.5 – The 8-way modular sealed jack & plug (plastic housing) . 82
Figure B.6 – The 8-way modular sealed jack & plug (metal housing) . 82
Figure B.7 – M12-4 connectors . 83
Figure B.8 – Example of a metallic shell M12-8 X-coding connectors . 84
Figure B.9 – Simplex LC connector . 85
Figure B.10 – Duplex LC connector . 85
Figure B.11 – IP65/67 sealed duplex LC connector . 85
Figure B.12 – IP65/67 sealed duplex SC-RJ connector . 86
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Figure B.13 – M12-4 to 8-way modular bulkhead . 88
Figure B.14 – The 8-way modular sealed jack & plug (plastic housing) . 93
Figure B.15 – The 8-way modular sealed jack & plug (metal housing) . 93
Figure B.16 – M12-4 connectors . 94
Figure B.17 – Earthing of cable shield . 96
Figure C.1 – Interconnection of CPF 2 networks . 101
Figure C.2 – Connection to generic cabling . 102
Figure C.3 – DeviceNet cable system uses a trunk/drop line topology . 104
Figure C.4 – Measuring the trunk length . 106
Figure C.5 – Measuring the trunk and drop length . 106
Figure C.6 – Measuring drop cable in a network with multiports . 107
Figure C.7 – Removable device using open-style connectors . 107
Figure C.8 – Fixed connection using open-style connector . 108
Figure C.9 – Open-style connector pin out . 108
Figure C.10 – Open-style connector pin out 10 position . 108
Figure C.11 – Power Bus Current derate as a function of temperature differential . 111
Figure C.12 – Power supply sizing example . 112
Figure C.13 – Current limit for thick cable for one power supply .
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