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.

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11	English CONTENTS
20	FOREWORD
22	INTRODUCTION
23	Figures Figure 1 – Industrial network installation life cycle
24	Figure 2 – Standards relationships
25	1 Scope 2 Normative references
28	3 Terms, definitions, and abbreviated terms 3.1 Terms and definitions
40	3.2 Abbreviated terms
41	3.3 Conventions for installation profiles
42	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
43	Figure 4 – Automation islands
44	4.1.3 The planning process Figure 5 – Automation island network external connections
45	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
46	4.2.2 Security 4.2.3 Environmental considerations and EMC
47	Figure 6 – How to meet environmental conditions
48	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
49	Figure 8 – Basic physical topologies for passive networks Figure 9 – Basic physical topologies for active networks Figure 10 – Example of combination of basic topologies
50	4.3.2 Network characteristics
51	Tables Table 1 – Basic network characteristics for balanced cabling not based on Ethernet Table 2 – Network characteristics for balanced cabling based on Ethernet
52	Table 3 – Network characteristics for optical fibre cabling
53	4.4 Selection and use of cabling components 4.4.1 Cable selection
54	Table 4 – Information relevant to copper cable: fixed cables Table 5 – Information relevant to copper cable: cords
55	Table 6 – Information relevant to optical fibre cables
57	4.4.2 Connecting hardware selection Table 7 – Connectors for balanced cabling CPs based on Ethernet
58	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)
59	4.4.3 Connections within a channel/permanent link
60	Figure 11 – Basic reference implementation model Table 11 – Basic reference implementation formulas
61	Figure 12 – Enhanced reference implementation model
62	Table 12 – Enhanced reference implementation formulas Table 13 – Correction factor Z for operating temperature above 20 °C
64	4.4.4 Terminators
65	4.4.5 Device location and connection 4.4.6 Coding and labelling
66	4.4.7 Earthing and bonding of equipment and devices and shielded cabling
67	Figure 13 – Equalisation and earthing conductor cross-sectional versus maximum length
68	Figure 14 – Selection of the earthing and bonding systems
69	Table 14 – Equalisation and earthing conductor sizing and length Table 15 – Bonding straps cross-section Table 16 – Bonding plates surface protection
70	Figure 15 – Placement of equalisation conductors
71	Figure 16 – Impedance of the earthing conductors and equalisation conductors versus noise frequency
72	Figure 17 – Wiring for bonding and earthing in an equipotential configuration
73	Figure 18 – Wiring of the earths in a star earthing configuration
74	Figure 19 – Schematic diagram of a field device with direct earthing Figure 20 – Schematic diagram of a field device with parallel RC circuit earthing
76	4.4.8 Storage and transportation of cables 4.4.9 Routing of cables
78	4.4.10 Separation of circuits
79	4.4.11 Mechanical protection of cabling components Table 17 – Cable circuit types and minimum distances
80	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
81	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
82	Table 18 – Parameters for balanced cables Table 19 – Parameters for silica optical fibre cables Table 20 – Parameters for POF optical fibre cables
83	Figure 21 – Insert edge protector Table 21 – Parameters for hard clad silica optical fibre cables
84	Figure 22 – Use an uncoiling device and avoid forming loop Figure 23 – Avoid torsion
85	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
86	Figure 27 – Cable gland with bending protection Figure 28 – Spiral tube
87	5.2.2 Installation and routing
89	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
90	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
91	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
92	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
93	Figure 31 – Use of flexible bonding straps at movable metallic pathways
94	5.7.3 Earthing methods Figure 32 – Surface preparation for earthing and bondingelectromechanical connections
95	Figure 33 – Example of isolated bus bar
96	5.7.4 Shield earthing methods Figure 34 – Example of isolator for mounting DIN rails Figure 35 – Parallel RC shield earthing
97	Figure 36 – Direct shield earthing Figure 37 – Examples for shielding application
98	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
99	5.8 As-implemented cabling documentation 6 Installation verification and installation acceptance test 6.1 General 6.2 Installation verification 6.2.1 General
100	6.2.2 Verification according to cabling planning documentation Figure 41 – Installation verification process
101	6.2.3 Verification of earthing and bonding Figure 42 – Test of earthing connections
102	6.2.4 Verification of shield earthing 6.2.5 Verification of cabling system 6.2.6 Cable selection verification
103	6.2.7 Connector verification 6.2.8 Connection verification
104	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
105	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
106	Figure 46 – Validation process
107	6.3.2 Acceptance test of Ethernet-based cabling Figure 47 – Schematic representation of the channel Figure 48 – Schematic representation of the permanent link
108	Figure 49 – Schematic representation of an E2E link
109	6.3.3 Acceptance test of non-Ethernet-based cabling
110	6.3.4 Specific requirements for wireless installation 6.3.5 Acceptance test report
111	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
112	7.5 Device location labelling 7.6 Component cabling labelling
113	7.7 Documentation
114	7.8 Specific requirements for administration 8 Installation maintenance and installation troubleshooting 8.1 General 8.2 Maintenance 8.2.1 Scheduled maintenance
116	8.2.2 Condition-based maintenance Figure 50 – Communication network maintenance
117	8.2.3 Corrective maintenance 8.3 Troubleshooting 8.3.1 General description 8.3.2 Evaluation of the problem
118	8.3.3 Typical problems Table 22 – Typical problems in a network with balanced cabling
119	8.3.4 Troubleshooting procedure Table 23 – Typical problems in a network with optical fibre cabling
120	8.3.5 Simplified troubleshooting procedure Figure 51 – Troubleshooting procedure
121	8.4 Specific requirements for maintenance and troubleshooting Figure 52 – Fault detection without special tools
122	Annexes Annex A (informative)Overview of generic cabling for industrial premises
123	Annex B (informative)MICE description methodology B.1 General B.2 Overview of MICE Figure B.1 – MICE classifications
124	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
125	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
126	B.4 Determining E classification Figure B.5 – Example 2 of mitigation Figure B.6 – Frequency range of electromagnetic disturbancefrom common industrial devices
127	Table B.3 – Relationship between electromagneticdisturbance-generating devices and “E” classification
128	Figure B.7 – Example of a general guidance for separation versus EFT value Table B.4 – Coupling mechanism for some interfering devices
129	B.5 The MICE table Table B.5 – MICE definition
131	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
132	C.6 Network access for diagnosis convenience C.7 Maintainability and on-line additions
133	Annex D (informative)Connector tables Table D.1 – Conventions for colour code used in the connector table
134	Table D.2 – Pin/pair assignment and colour scheme
135	Table D.3 – 8-way modular connector
136	Table D.4 – M12-4 A-coding connector
137	Table D.5 – M12-4 D-coding connector
138	Table D.6 – M12-5 A-coding connector
139	Table D.7 – M12-5 B-coding connector
140	Table D.8 – SubD connector
141	Table D.9 – 7/8-16 UN-2B THD / M18 connector
142	Table D.10 – Open style connector
143	Table D.11 – M12-8 X-coding connector
144	Table D.12 – BNC connector
145	Table D.13 – TNC connector
146	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)
147	Figure E.2 – Five wire power network (TN-S)
148	Annex F (informative)Conductor sizes in electrical cables Table F.1 – American wire gauge system and kcmil
150	Annex G (informative)Installed cabling verification checklists G.1 General G.2 Copper cabling verification checklist
151	Table G.1 – Copper cabling verification checklist
152	Table G.2 – Earthing and bonding measurements checklist Table G.3 – Signatures for Table G.1 and Table G.2 checklists
153	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
154	Table G.6 – Optical fibre cabling verification checklist Table G.7 – Signatures for Table G.6 checklist
155	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
156	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
157	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
158	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
159	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
160	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
161	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
162	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
163	Figure I.2 – Example of wire preparation for type A cables Figure I.3 – 8-way modular plug
164	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
165	I.4 Guidance for M12-4 D-coding connector installation Figure I.6 – Example of a cable preparation for type A wiring
166	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
167	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
168	I.5 Guidance for terminating optical fibre cable ends Figure I.16 – Final assembling
169	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
170	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
171	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
172	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
173	K.5.4 Fieldbus data rate test reporting template K.5.5 Values for acceptable fieldbus performance
174	Annex L (informative)Communication network installation work responsibility L.1 General L.2 Installation work responsibility L.3 Installation work responsibility table
175	Annex M (informative)Trade names of communication profiles
176	Table M.1 – Trade names of CPFs and CPs
178	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
179	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
180	N.2.4 Calculations N.2.5 Measurement results
181	Figure N.6 – Validation of the cable DCR
182	Figure N.7 – Conclusions for cable open or shorts
183	Figure N.8 – Determination of proper cable terminator value
184	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
185	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
186	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
187	O.4 E2E link measurement
188	Annex P (normative)Temperature rise of cabling with remote powering P.1 General P.2 Scope P.3 Temperature de-rating calculation
189	Table P.1 – Parameters used to calculate the temperature derating
190	Bibliography

Published By	Publication Date	Number of Pages
BSI	2019	194


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Status	Revision Underway
Title	Industrial communication networks. Installation of communication networks in industrial premises
Replaces	BS EN IEC 61918:2018
Publisher	BSI
Committee	GEL/65/3
Pages	194
Publication Date	2019-11-04
ISBN	978 0 539 02872 0
Standard Number	BS EN IEC 61918:2018+A11:2019
Identical National Standard Of	EN IEC 61918:2018/A11:2019
Descriptors	Data processing, Automatic control systems, Planning, Computer networks, Telecommunication systems, Documents, Industrial, Approval testing, Communication cables, Process control, Verification, Electric connectors, Industrial facilities, Electric cables, Electrical installations, Fibre optic connectors, Communication networks, Telecommunication, Data transmission, Installation, Interfaces (data processing), Fibre optic cables, Fieldbus
Modified National Standard Of	IEC 61918:2018
Amends	BS EN IEC 61918:2018
ICS Codes	25.040.40 - Industrial process measurement and control

BS EN IEC 61918:2018+A11:2019

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BS EN IEC 61918:2018+A11:2019

BS EN IEC 61918:2018+A11:2019