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BS EN IEC 61918:2018:2019 Edition

BS EN IEC 61918:2018:2019 Edition

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Industrial communication networks. Installation of communication networks in industrial premises

Published By Publication Date Number of Pages
BSI 2019 192
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This document specifies basic requirements for the installation of media for communication networks within and between the automation islands, of industrial sites. This document covers balanced and optical fibre cabling. It also covers the cabling infrastructure for wireless media, but not the wireless media itself. Additional media are covered in IEC 61784-5 (all parts).

This document is a companion standard to the communication networks of the industrial automation islands and especially to the communication networks specified in IEC 61158 (all parts) and IEC 61784 (all parts).

In addition, this document covers the connection between the generic telecommunications cabling specified in ISO/IEC 11801-3 and the specific communication cabling of an automation island, where an automation outlet (AO) replaces the telecommunication outlet (TO) of ISO/IEC 11801-3.

NOTE If the interface used at the AO does not conform to that specified for the TO of ISO/IEC 11801-3, the cabling no longer conforms to ISO/IEC 11801-3 although certain features, including performance, of generic cabling may be retained.

This document provides guidelines that cope with the critical aspects of the industrial automation area (safety, security and environmental aspects such as mechanical, liquid, particulate, climatic, chemicals and electromagnetic interference).

This document does not recognise implementations of power distribution with or through Ethernet balanced cabling systems.

This document deals with the roles of planner, installer, verifier, and acceptance test personnel, administration and maintenance personnel and specifies the relevant responsibilities and/or gives guidance.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
10 English
CONTENTS
19 FOREWORD
21 INTRODUCTION
22 Figures
Figure 1 – Industrial network installation life cycle
23 Figure 2 – Standards relationships
24 1 Scope
2 Normative references
27 3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
39 3.2 Abbreviated terms
40 3.3 Conventions for installation profiles
41 4 Installation planning
4.1 General
4.1.1 Objective
4.1.2 Cabling in industrial premises
Figure 3 – Automation island cabling attached to elements of generic cabling
42 Figure 4 – Automation islands
43 4.1.3 The planning process
Figure 5 – Automation island network external connections
44 4.1.4 Specific requirements for CPs
4.1.5 Specific requirements for generic cabling in accordance with ISO/IEC 11801-3
4.2 Planning requirements
4.2.1 Safety
45 4.2.2 Security
4.2.3 Environmental considerations and EMC
46 Figure 6 – How to meet environmental conditions
47 4.2.4 Specific requirements for generic cabling in accordance with ISO/IEC 11801-3
4.3 Network capabilities
4.3.1 Network topology
Figure 7 – How enhancement, isolation and separation work together
48 Figure 8 – Basic physical topologies for passive networks
Figure 9 – Basic physical topologies for active networks
Figure 10 – Example of combination of basic topologies
49 4.3.2 Network characteristics
50 Tables
Table 1 – Basic network characteristics for balanced cabling not based on Ethernet
Table 2 – Network characteristics for balanced cabling based on Ethernet
51 Table 3 – Network characteristics for optical fibre cabling
52 4.4 Selection and use of cabling components
4.4.1 Cable selection
53 Table 4 – Information relevant to copper cable: fixed cables
Table 5 – Information relevant to copper cable: cords
54 Table 6 – Information relevant to optical fibre cables
56 4.4.2 Connecting hardware selection
Table 7 – Connectors for balanced cabling CPs based on Ethernet
57 Table 8 – Connectors for copper cabling CPs not based on Ethernet
Table 9 – Optical fibre connecting hardware
Table 10 – Relationship between FOC and fibre types (CP x/y)
58 4.4.3 Connections within a channel/permanent link
59 Figure 11 – Basic reference implementation model
Table 11 – Basic reference implementation formulas
60 Figure 12 – Enhanced reference implementation model
61 Table 12 – Enhanced reference implementation formulas
Table 13 – Correction factor Z for operating temperature above 20 °C
63 4.4.4 Terminators
64 4.4.5 Device location and connection
4.4.6 Coding and labelling
65 4.4.7 Earthing and bonding of equipment and devices and shielded cabling
66 Figure 13 – Equalisation and earthing conductor cross-sectional versus maximum length
67 Figure 14 – Selection of the earthing and bonding systems
68 Table 14 – Equalisation and earthing conductor sizing and length
Table 15 – Bonding straps cross-section
Table 16 – Bonding plates surface protection
69 Figure 15 – Placement of equalisation conductors
70 Figure 16 – Impedance of the earthing conductors and equalisation conductors versus noise frequency
71 Figure 17 – Wiring for bonding and earthing in an equipotential configuration
72 Figure 18 – Wiring of the earths in a star earthing configuration
73 Figure 19 – Schematic diagram of a field device with direct earthing
Figure 20 – Schematic diagram of a field device with parallel RC circuit earthing
75 4.4.8 Storage and transportation of cables
4.4.9 Routing of cables
77 4.4.10 Separation of circuits
78 4.4.11 Mechanical protection of cabling components
Table 17 – Cable circuit types and minimum distances
79 4.4.12 Installation in special areas
4.5 Cabling planning documentation
4.5.1 Common description
4.5.2 Cabling planning documentation for CPs
80 4.5.3 Network certification documentation
4.5.4 Cabling planning documentation for generic cabling in accordance with ISO/IEC 11801-3
4.6 Verification of cabling planning specification
5 Installation implementation
5.1 General requirements
5.1.1 Common description
5.1.2 Installation of CPs
5.1.3 Installation of generic cabling in industrial premises
5.2 Cable installation
5.2.1 General requirements for all cabling types
81 Table 18 – Parameters for balanced cables
Table 19 – Parameters for silica optical fibre cables
Table 20 – Parameters for POF optical fibre cables
82 Figure 21 – Insert edge protector
Table 21 – Parameters for hard clad silica optical fibre cables
83 Figure 22 – Use an uncoiling device and avoid forming loop
Figure 23 – Avoid torsion
84 Figure 24 – Maintain minimum bending radius
Figure 25 – Do not pull by the individual wires
Figure 26 – Use cable clamps with a large (wide) surface
85 Figure 27 – Cable gland with bending protection
Figure 28 – Spiral tube
86 5.2.2 Installation and routing
88 5.2.3 Specific requirements for CPs
5.2.4 Specific requirements for wireless installation
5.2.5 Specific requirements for generic cabling in accordance with ISO/IEC 11801-3
5.3 Connector installation
5.3.1 Common description
Figure 29 – Separate cable pathways
89 5.3.2 Shielded connectors
5.3.3 Unshielded connectors
5.3.4 Specific requirements for CPs
5.3.5 Specific requirements for wireless installation
5.3.6 Specific requirements for generic cabling in accordance with ISO/IEC 11801-3
90 5.4 Terminator installation
5.4.1 Common description
5.4.2 Specific requirements for CPs
5.5 Device installation
5.5.1 Common description
5.5.2 Specific requirements for CPs
5.6 Coding and labelling
5.6.1 Common description
5.6.2 Specific requirements for CPs
5.7 Earthing and bonding of equipment and devices and shield cabling
5.7.1 Common description
91 5.7.2 Bonding and earthing of enclosures and pathways
Figure 30 – Impedance of the earthing circuit as a function of distance from the metallic pathway
92 Figure 31 – Use of flexible bonding straps at movable metallic pathways
93 5.7.3 Earthing methods
Figure 32 – Surface preparation for earthing and bondingelectromechanical connections
94 Figure 33 – Example of isolated bus bar
95 5.7.4 Shield earthing methods
Figure 34 – Example of isolator for mounting DIN rails
Figure 35 – Parallel RC shield earthing
96 Figure 36 – Direct shield earthing
Figure 37 – Examples for shielding application
97 5.7.5 Specific requirements for CPs
5.7.6 Specific requirements for generic cabling in accordance with ISO/IEC 11801-3
Figure 38 – Voltage offset mitigation
Figure 39 – First example of derivatives of shield earthing
Figure 40 – Second example of derivatives of shield earthing
98 5.8 As-implemented cabling documentation
6 Installation verification and installation acceptance test
6.1 General
6.2 Installation verification
6.2.1 General
99 6.2.2 Verification according to cabling planning documentation
Figure 41 – Installation verification process
100 6.2.3 Verification of earthing and bonding
Figure 42 – Test of earthing connections
101 6.2.4 Verification of shield earthing
6.2.5 Verification of cabling system
6.2.6 Cable selection verification
102 6.2.7 Connector verification
6.2.8 Connection verification
103 Figure 43 – Pin and pair grouping assignments for two eight position IEC 60603-7 subparts and four position IEC 60603 series to IEC 61076-2-101 connectors
Figure 44 – Two pair 8-way modular connector
Figure 45 – Transposed pairs, split pairs and reversed pair
104 6.2.9 Terminator verification
6.2.10 Coding and labelling verification
6.2.11 Verification report
6.3 Installation acceptance test
6.3.1 General
105 Figure 46 – Validation process
106 6.3.2 Acceptance test of Ethernet-based cabling
Figure 47 – Schematic representation of the channel
Figure 48 – Schematic representation of the permanent link
107 Figure 49 – Schematic representation of an E2E link
108 6.3.3 Acceptance test of non-Ethernet-based cabling
109 6.3.4 Specific requirements for wireless installation
6.3.5 Acceptance test report
110 7 Installation administration
7.1 General
7.2 Fields covered by the administration
7.3 Basic principles for the administration system
7.4 Working procedures
111 7.5 Device location labelling
7.6 Component cabling labelling
112 7.7 Documentation
113 7.8 Specific requirements for administration
8 Installation maintenance and installation troubleshooting
8.1 General
8.2 Maintenance
8.2.1 Scheduled maintenance
115 8.2.2 Condition-based maintenance
Figure 50 – Communication network maintenance
116 8.2.3 Corrective maintenance
8.3 Troubleshooting
8.3.1 General description
8.3.2 Evaluation of the problem
117 8.3.3 Typical problems
Table 22 – Typical problems in a network with balanced cabling
118 8.3.4 Troubleshooting procedure
Table 23 – Typical problems in a network with optical fibre cabling
119 8.3.5 Simplified troubleshooting procedure
Figure 51 – Troubleshooting procedure
120 8.4 Specific requirements for maintenance and troubleshooting
Figure 52 – Fault detection without special tools
121 Annexes
Annex A (informative)Overview of generic cabling for industrial premises
122 Annex B (informative)MICE description methodology
B.1 General
B.2 Overview of MICE
Figure B.1 – MICE classifications
123 B.3 Examples of use of the MICE concept
B.3.1 Common description
B.3.2 Examples of mitigation
Figure B.2 – Example MICE classifications within a facility
Figure B.3 – Enhancement, isolation and separation
124 Figure B.4 – Example 1 of mitigation
Table B.1 – Example 1 of targeted MICE area
Table B.2 – Example 2 of targeted MICE area
125 B.4 Determining E classification
Figure B.5 – Example 2 of mitigation
Figure B.6 – Frequency range of electromagnetic disturbancefrom common industrial devices
126 Table B.3 – Relationship between electromagneticdisturbance-generating devices and “E” classification
127 Figure B.7 – Example of a general guidance for separation versus EFT value
Table B.4 – Coupling mechanism for some interfering devices
128 B.5 The MICE table
Table B.5 – MICE definition
130 Annex C (informative)Network topologies
C.1 Common description
C.2 Total cable demand
C.3 Maximum cable segment length
C.4 Maximum network length
C.5 Fault tolerance
C.5.1 General
C.5.2 Use of redundancy
C.5.3 Failure analysis for networks with redundancy
131 C.6 Network access for diagnosis convenience
C.7 Maintainability and on-line additions
132 Annex D (informative)Connector tables
Table D.1 – Conventions for colour code used in the connector table
133 Table D.2 – Pin/pair assignment and colour scheme
134 Table D.3 – 8-way modular connector
135 Table D.4 – M12-4 A-coding connector
136 Table D.5 – M12-4 D-coding connector
137 Table D.6 – M12-5 A-coding connector
138 Table D.7 – M12-5 B-coding connector
139 Table D.8 – SubD connector
140 Table D.9 – 7/8-16 UN-2B THD / M18 connector
141 Table D.10 – Open style connector
142 Table D.11 – M12-8 X-coding connector
143 Table D.12 – BNC connector
144 Table D.13 – TNC connector
145 Annex E (informative)Power networks with respect to electromagnetic interference –TN-C and TN-S approaches
Figure E.1 – Four-wire power network (TN-C)
146 Figure E.2 – Five wire power network (TN-S)
147 Annex F (informative)Conductor sizes in electrical cables
Table F.1 – American wire gauge system and kcmil
149 Annex G (informative)Installed cabling verification checklists
G.1 General
G.2 Copper cabling verification checklist
150 Table G.1 – Copper cabling verification checklist
151 Table G.2 – Earthing and bonding measurements checklist
Table G.3 – Signatures for Table G.1 and Table G.2 checklists
152 G.3 Optical fibre cabling verification checklist
Table G.4 – Checklist for special checks for non-Ethernet base CPs
Table G.5 – Signatures for Table G.4 checklist
153 Table G.6 – Optical fibre cabling verification checklist
Table G.7 – Signatures for Table G.6 checklist
154 Annex H (normative)Cord sets
H.1 General
H.2 Constructing cord sets
H.2.1 Straight through cord sets with M12-4 D-coding connectors
Figure H.1 – Straight through cord sets with M12-4 D-coding connectors
155 H.2.2 Crossover cord sets with M12-4 D-coding connectors
H.2.3 Straight through cord sets with 8-way modular connectors
Figure H.2 – Straight through cord sets with 8-way modular connectors, 8 poles
Table H.1 – M12-4 D-coding pin/pair assignment
Table H.2 – M12-4 D-coding to M12-4 D-coding crossover pin/pair assignment
156 H.2.4 Crossover cord sets with 8-way modular connectors
Figure H.3 – Straight through cord sets with 8-way modular connectors, 4 poles
Table H.3 – 8-way modular pin/pair assignment
157 H.2.5 Straight conversion from one connector family to another
H.2.6 Crossover conversion from one connector family to another
Table H.4 – 8-way modular crossover pin/pair assignment
Table H.5 – Connectivity pin assignment
158 H.2.7 Assignment of PMA signal to MDI and MDI-X in outs
Figure H.4 –M12-8 X-coding connector
Table H.6 – M12-4 to 8-way modular crossover pin pair assignment
Table H.7 – Assignment of PMA signal to MDI and MDI-X pin outs
159 H.2.8 Signal and pin assignment for MDI and TIA568A
H.2.9 Signal and pin assignment for MDIX and TIA568B
Table H.8 – Signal and pin/pair assignment for MDI and TIA 568B
Table H.9 – Signal and pin/pair assignment for MDI and T568A
160 H.2.10 Signal and pin assignment for MDIX and TIA568A
Table H.10 – Signal and pin/pair assignment for MDIX and T568B
Table H.11 – Signal and pin/pair assignment for MDIX and T568A
161 Annex I (informative)Guidance for terminating cable ends
I.1 General
I.2 Guidance for terminating shielded twisted pair cable ends for 8-way modular plugs
Figure I.1 – Stripping the cable jacket
162 Figure I.2 – Example of wire preparation for type A cables
Figure I.3 – 8-way modular plug
163 I.3 Guidance for terminating unshielded twisted pair cable ends for 8-way modular plugs
Figure I.4 – Inserting the cable into the connector body
Figure I.5 – Crimping the connector
164 I.4 Guidance for M12-4 D-coding connector installation
Figure I.6 – Example of a cable preparation for type A wiring
165 Figure I.7 – Connector components
Figure I.8 – Cable preparation
Figure I.9 – Connector wire gland, nut and shell on the cable
Figure I.10 – Conductors preparation
Figure I.11 – Jacket removal
166 Figure I.12 – Shield preparation
Figure I.13 – Conductors preparation
Figure I.14 – Installing conductors in connector
Figure I.15 – Assembling the body of the connector
167 I.5 Guidance for terminating optical fibre cable ends
Figure I.16 – Final assembling
168 Annex J (informative)Recommendations for bulkhead connection performance and channel performance with more than 4 connections in the channel
J.1 General
J.2 Recommendations
Table J.1 – Transmission requirements for more than 4 connections in a channel
169 Annex K (informative)Fieldbus data transfer testing
K.1 Background
K.2 Allowable error rates for control systems
K.2.1 Bit errors
K.2.2 Burst errors
170 K.3 Testing channel performance
K.4 Testing cable parameters
K.4.1 General
K.4.2 Generic cable testing
K.4.3 Fieldbus cable testing
171 K.5 Testing fieldbus data rate performance
K.5.1 General
K.5.2 Fieldbus test
K.5.3 Planning for fieldbus data rate testing
172 K.5.4 Fieldbus data rate test reporting template
K.5.5 Values for acceptable fieldbus performance
173 Annex L (informative)Communication network installation work responsibility
L.1 General
L.2 Installation work responsibility
L.3 Installation work responsibility table
174 Annex M (informative)Trade names of communication profiles
175 Table M.1 – Trade names of CPFs and CPs
177 Annex N (informative)Validation measurements
N.1 General
N.2 DCR measurements
N.2.1 Purpose of test
N.2.2 Assumptions
N.2.3 Measurements
Figure N.1 – Loop resistance measurement wire to wire
178 Figure N.2 – Loop resistance measurement wire 1 to shield
Figure N.3 – Loop resistance measurement wire 2 to shield
Figure N.4 – Resistance measurement for detecting wire shorts
Figure N.5 – Resistance measurement between wire 1 and wire 2
179 N.2.4 Calculations
N.2.5 Measurement results
180 Figure N.6 – Validation of the cable DCR
181 Figure N.7 – Conclusions for cable open or shorts
182 Figure N.8 – Determination of proper cable terminator value
183 Annex O (informative)End-to-end link
O.1 General
O.2 End-to-end link
Figure O.1 – Channel according to ISO/IEC 11801
184 O.3 E2E link normative description
Figure O.2 – End-to-end link
Figure O.3 – One segment, two Connection E2E link
Figure O.4 – Two Segment, three Connection E2E link
185 Figure O.5 – Three Segment, one Connection bulkheads, four Connection E2E link
Figure O.6 – Three Segment, two Connection, six Connection E2E link
Figure O.7 – Three Segment, four Connection E2E link
Figure O.8 – Four Segment, five Connection E2E link
Figure O.9 – Five Segment, six Connection E2E link
186 O.4 E2E link measurement
187 Annex P (normative)Temperature rise of cabling with remote powering
P.1 General
P.2 Scope
P.3 Temperature de-rating calculation
188 Table P.1 – Parameters used to calculate the temperature derating
189 Bibliography

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$256.21