IEC 61784-5-19:2024

Industrial networks - Profiles - Part 5-19: Installation of fieldbuses - Installation profiles for CPF 19

IEC 61784-5-19:2024 specifies the installation profile for CPF 19 (MECHATROLINKTM[1]). The installation profiles are specified in the annexes. These annexes are read in conjunction with IEC 61918:2018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024.
[1] MECHATROLINKTM and Σ-LINKTM II are trade names of YASKAWA ELECTRIC CORPORATION. This information is given for the convenience of users of this document and does not constitute an endorsement by IEC of the trade names holder or any of its products. Compliance to this profile does not require use of the trade names. Use of the trade name requires permission of the trade name holder.

Réseaux industriels - Profils - Partie 5-19: Installation des bus de terrain - Profils d'installation pour CPF 19

L’IEC 61784-5-19:2024 définit les profils d’installation pour la CPF 19 (MECHATROLINKTM[1]). Les profils d’installation sont spécifiés dans les annexes. Ces annexes doivent être utilisées conjointement avec l’IEC 61918:2018, l’IEC 61918:2018/AMD1:2022 et l’IEC 61918:2018/AMD2:2024.
[1] MECHATROLINKTM et Σ-LINKTM II sont des appellations commerciales de YASKAWA ELECTRIC CORPORATION. Cette information est donnée à l’intention des utilisateurs du présent document et ne signifie nullement que l’IEC approuve ou recommande l’organisation détentrice de l’appellation commerciale, ni un quelconque de ses produits. La conformité n’exige pas l’utilisation des appellations commerciales. L’utilisation de l’appellation commerciale exige l’autorisation du détenteur de celle-ci.

General Information

• Status: Published
• Publication Date: 02-Apr-2024
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.40 - Transport layer
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: JWG 10 - TC 65/SC 65C/JWG 10
• Current Stage: PPUB - Publication issued
• Start Date: 03-Apr-2024
• Completion Date: 22-Mar-2024

Relations

• Revises: IEC 61784-5-19:2013 - Industrial communication networks - Profiles - Part 5-19: Installation of fieldbuses - Installation profiles for CPF 19
• Effective Date: 05-Sep-2023

Overview - IEC 61784-5-19:2024 (CPF 19 | MECHATROLINK)

IEC 61784-5-19:2024 specifies installation profiles for CPF 19, covering fieldbus installation requirements for MECHATROLINK™ technologies (CPF 19). The standard organizes detailed guidance in normative annexes and is to be read in conjunction with IEC 61918:2018 and its amendments (AMD1:2022, AMD2:2024). It focuses on practical, on‑site topics such as cabling selection, connector and terminator installation, earthing, verification and acceptance testing, and ongoing maintenance.

Note: MECHATROLINK™ and Σ‑LINK™ II are trade names of YASKAWA ELECTRIC CORPORATION; use of the trade name requires permission from the trade name holder. Compliance to this profile does not require use of those trade names.

Key topics and technical requirements

• Installation planning: network topology options (including repeaters), planning requirements and documentation needed for CPF 19 deployments.
• Cabling and components: selection and use of cable types, cable structure considerations, shielded cabling, and recommended cabling practices.
• Connectors and terminators: installation requirements for single‑ and dual‑port device connectors, cable connectors with/without inductors, and correct terminator placement.
• Device installation: mechanical and electrical installation guidance for field devices and ports.
• Earthing and bonding: grounding practices for equipment, devices and cable shields to minimize interference and ensure reliable communications.
• Verification and acceptance testing: procedures for installation verification and installation acceptance tests to validate cabling, connectivity and network capability.
• Documentation and administration: requirements for cabling planning records, “as‑implemented” documentation, coding/labeling and installation administration.
• Maintenance and troubleshooting: recommended maintenance practices and specific troubleshooting steps for CPF 19 networks.

Practical applications - who uses this standard

• System integrators and automation engineers deploying MECHATROLINK fieldbus networks.
• OEMs and machine builders specifying reliable fieldbus installations and acceptance criteria.
• Installation technicians and electrical contractors implementing cabling, connectors and terminators.
• Maintenance teams and technical support staff performing verification, diagnostics and long‑term upkeep.
• Procurement and compliance teams referencing installation profiles for conformance and quality assurance.

Related standards

• IEC 61918:2018 (and AMD1:2022, AMD2:2024) - normative references providing protocol and electrical details for CPF 19 implementations.
• Other parts of the IEC 61784 series - for additional industrial network profiles and communication-system requirements.

By following IEC 61784-5-19:2024, organizations ensure consistent, tested installation practices for CPF 19 fieldbuses, improving network reliability, ease of maintenance and interoperability across industrial automation systems.

Standards Content (Sample)

IEC 61784-5-19 ®
Edition 2.0 2024-04
REDLINE VERSION
INTERNATIONAL
STANDARD
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Industrial communication networks – Profiles –
Part 5-19: Installation of fieldbuses – Installation profiles for CPF 19

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IEC 61784-5-19 ®
Edition 2.0 2024-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-19: Installation of fieldbuses – Installation profiles for CPF 19
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.40 ISBN 978-2-8322-8697-5
– 2 – IEC 61784-5-19:2024 RLV © IEC 2024
CONTENTS
FOREWORD . 7
INTRODUCTION . 2
1 Scope . 11
2 Normative references . 11
3 Terms, definitions and abbreviated terms . 11
4 CPF19: Overview of installation profiles . 12
5 Installation profile conventions. 12
6 Conformance to installation profiles . 13
Annex A (normative) CP 19/1 (MECHATROLINK™-II) specific installation profile . 14
A.1 Installation profile scope . 14
A.2 Normative references . 14
A.3 Installation profile terms, definitions, and abbreviated terms . 14
A.3.1 Terms and definitions . 14
A.3.2 Abbreviated terms . 14
A.3.3 Conventions for installation profiles . 14
A.4 Installation planning . 15
A.4.1 General . 15
A.4.2 Planning requirements . 15
A.4.3 Network capabilities . 15
A.4.4 Selection and use of cabling components . 17
4.4.3.3.1Common description . 22
A.4.5 Cabling planning documentation . 25
A.4.6 Verification of cabling planning specification . 25
A.5 Installation implementation. 25
A.5.1 General requirements . 25
A.5.2 Cable installation . 25
A.5.3 Connector installation . 27
A.5.4 Terminator installation . 28
A.5.5 Device installation . 28
A.5.6 Coding and labelling . 28
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 28
A.5.8 As-implemented cabling documentation . 28
A.6 Installation verification and installation acceptance test . 29
A.6.1 General . 29
A.6.2 Installation verification . 29
A.6.3 Installation acceptance test . 30
A.7 Installation administration . 30
A.8 Installation maintenance and installation troubleshooting . 31
A.8.1 General . 31
A.8.2 Maintenance . 31
A.8.3 Troubleshooting . 31
A.8.4 Specific requirements for maintenance and troubleshooting . 31
Annex B (normative) CP 19/2 (MECHATROLINK™-III) specific installation profile . 33
B.1 Installation profile scope . 33
B.2 Normative references . 33
B.3 Installation profile terms, definitions, and abbreviated terms . 33

B.3.1 Terms and definitions . 33
B.3.2 Abbreviated terms . 33
B.3.3 Conventions for installation profiles . 33
B.4 Installation planning . 33
B.4.1 General . 33
B.4.2 Planning requirements . 33
B.4.3 Network capabilities . 34
B.4.4 Selection and use of cabling components . 35
B.4.5 Cabling planning documentation . 41
B.4.6 Verification of cabling planning specification . 42
B.5 Installation implementation. 42
B.5.1 General requirements . 42
B.5.2 Cable installation . 42
B.5.3 Connector installation . 43
B.5.4 Terminator installation . 44
B.5.5 Device installation . 44
B.5.6 Coding and labelling . 44
B.5.7 Earthing and bonding of equipment and devices and shield cabling . 44
B.5.8 As-implemented cabling documentation . 44
B.6 Installation verification and installation acceptance test . 44
B.6.1 General . 44
B.6.2 Installation verification . 44
B.6.3 Installation acceptance test . 45
B.7 Installation administration . 46
B.8 Installation maintenance and installation troubleshooting . 46
Annex C (normative) CP19/3 (Σ-LINK™ II) specific installation profile . 47
C.1 Installation profile scope . 47
C.2 Normative references . 47
C.3 Installation profile terms, definitions, and abbreviated terms . 47
C.3.1 Terms and definitions . 47
C.3.2 Abbreviated terms . 47
C.3.3 Conventions for installation profiles . 47
C.4 Installation planning . 47
C.4.1 General . 47
C.4.2 Planning requirements . 47
C.4.3 Network capabilities . 48
C.4.4 Selection and use of cabling components . 49
C.4.5 Cabling planning documentation . 61
C.4.6 Verification of cabling planning specification . 61
C.5 Installation implementation. 61
C.5.1 General requirements . 61
C.5.2 Cable installation . 62
C.5.3 Connector installation . 63
C.5.4 Terminator installation . 64
C.5.5 Device installation . 64
C.5.6 Coding and labelling . 64
C.5.7 Earthing and bonding of equipment and devices and shield cabling . 64
C.5.8 As-implemented cabling documentation . 64
C.6 Installation verification and installation acceptance test . 64

– 4 – IEC 61784-5-19:2024 RLV © IEC 2024
C.6.1 General . 64
C.6.2 Installation verification . 64
C.6.3 Installation acceptance test . 65
C.7 Installation administration . 66
C.8 Installation maintenance and installation troubleshooting . 66
Annex D (normative) CP 19/4 (MECHATROLINK™-4) specific installation profile . 67
D.1 Installation profile scope . 67
D.2 Normative references . 67
D.3 Installation profile terms, definitions, and abbreviated terms . 67
D.3.1 Terms and definitions . 67
D.3.2 Abbreviated terms . 67
D.3.3 Conventions for installation profiles . 67
D.4 Installation planning . 67
D.4.1 General . 67
D.4.2 Planning requirements . 67
D.4.3 Network capabilities . 68
D.4.4 Selection and use of cabling components . 69
D.4.5 Cabling planning documentation . 75
D.4.6 Verification of cabling planning specification . 75
D.5 Installation implementation. 75
D.5.1 General requirements . 75
D.5.2 Cable installation . 75
D.5.3 Connector installation . 77
D.5.4 Terminator installation . 78
D.5.5 Device installation . 78
D.5.6 Coding and labelling . 78
D.5.7 Earthing and bonding of equipment and devices and shield cabling . 78
D.5.8 As-implemented cabling documentation . 78
D.6 Installation verification and installation acceptance test . 78
D.6.1 General . 78
D.6.2 Installation verification . 78
D.6.3 Installation acceptance test . 79
D.7 Installation administration . 80
D.8 Installation maintenance and installation troubleshooting . 80
Bibliography . 81

Figure 1 – Standards relationships . 10
Figure A.1 – Topology of CP 19/1 network . 16
Figure A.2 – Network expansion using repeater . 16
Figure A.3 – Structure of cable . 19
Figure A.4 – Dimensions of single port device connector . 20
Figure A.5 – Dimensions of dual ports device connector . 21
Figure A.6 – Dimensions of cable connector . 21
Figure A.7 – Cable connector with inductors . 22
Figure A.8 – Terminator connection in cable connector housing . 23
Figure A.9 – Wiring example . 27
Figure A.10 – Terminator installed in M-II cable connector . 28

Figure A.11 – Division of network segment by changing terminator location . 32
Figure B.1 – Dimensions of IMI device connector .
Figure B.2 – Dimensions of IMI cable connector .
Figure C.1 – Topology of CP 19/3 combination of linear and T-branch network . 48
Figure C.2 – Topology of CP 19/3 network example with Power adaptor . 49
Figure C.3 – Structure of 6-conductor cable . 52
Figure C.4 – Structure of 8-conductor cable . 52
Figure C.5 – Connection for linear network . 53
Figure C.6 – Dimensions of device 6 pin connector . 54
Figure C.7 – Dimensions of device 6 pin connector . 54
Figure C.8 – Dimensions of device 6 pin connector . 55
Figure C.9 – Dimensions of device 8 pin male connector . 55
Figure C.10 – Dimensions of ejector for device 8 pin male connector . 56
Figure C.11 – Dimensions of device 8 pin female connector . 56
Figure C.12 – Dimensions of cable 6 pin male connector . 57
Figure C.13 – Dimensions of cable 6 pin female connector . 57
Figure C.14 – Dimensions of cable 8 pin male connector . 57
Figure C.15 – Dimensions of cable 8 pin female connector . 58

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet . 17
Table A.2 – Number of devices and maximum segment length . 17
Table A.3 – Information relevant to copper cable: fixed cables . 18
Table A.4 – Additional cable specifications . 18
Table A.5 – Connectors for copper cabling CPs not based on Ethernet . 19
Table A.6 – Parameters for balanced cables . 26
Table A.7 – Pin assignment and wire colour coding for CP 19/1 connector . 27
Table A.8 – Typical problems in a network with balanced cabling. 31
Table B.1 – Network characteristics for balanced cabling based on Ethernet . 35
Table B.2 – Information relevant to copper cable: fixed cables . 36
Table B.3 – Information relevant to copper cable: cords . 36
Table B.4 – Connectors for balanced cabling CPs based on Ethernet . 37
Table B.5 – Parameters for balanced cables . 42
Table B.6 – Pin assignment and wire colour coding for CP 19/2 modular
and IMI connector . 43
Table B.7 – Pin assignment and wire colour coding for CP 19/2 M12 connector . 44
Table C.1 – Basic network characteristics for balanced cabling not based on Ethernet . 49
Table C.2 – Information relevant to 6-conductor copper cable . 50
Table C.3 – Information relevant to 8-conductor copper cable . 51
Table C.4 – Additional cable specifications . 51
Table C.5 – Connectors for copper cabling CPs not based on Ethernet . 53
Table C.6 – Electric characteristics of 6pin connector . 58
Table C.7 – Electric characteristics of 8pin connector . 58
Table C.8 – Parameters for balanced cables . 62

– 6 – IEC 61784-5-19:2024 RLV © IEC 2024
Table C.9 – Pin assignment and wire colour coding for CP 19/3 6 pin connector . 63
Table C.10 – Pin assignment and wire colour coding for CP 19/3 8 pin connector . 63
Table D.1 – Network characteristics for balanced cabling based on Ethernet . 69
Table D.2 – Information relevant to copper cable: CP 19/4 type A fixed cables . 70
Table D.3 – Information relevant to copper cable: CP 19/4 type B fixed cables . 70
Table D.4 – Information relevant to copper cable: CP 19/4 type A fixed cords . 71
Table D.5 – Information relevant to copper cable: CP 19/4 type B fixed cords . 71
Table D.6 – Connectors for balanced cabling CPs based on Ethernet . 72
Table D.7 – Parameters for balanced cables . 76
Table D.8 – Pin assignment and wire colour coding for CP 19/4 modular and IMI
connector . 77
Table D.9 – Pin assignment and wire colour coding for CP 19/4 M12-4 connector. 77
Table D.10 – Pin assignment and wire colour coding for CP 19/4 M12-8 connector . 77

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-19: Installation of fieldbuses –
Installation profiles for CPF 19

FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition IEC 61784-5-19:2013. A vertical bar appears in the margin
wherever a change has been made. Additions are in green text, deletions are in
strikethrough red text.
– 8 – IEC 61784-5-19:2024 RLV © IEC 2024
IEC 61784-5-19 has been prepared by subcommittee 65C: Industrial networks, of IEC technical
committee 65: Industrial-process measurement, control and automation. It is an International
Standard.
This document is to be used in conjunction with IEC 61918:2018, IEC 61918:2018/AMD1:2022
and IEC 61918:2018/AMD2:2024.
This second edition cancels and replaces the first 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) addition of new installation profiles CP19/3 and CP19/4 in Clause 4;
b) In Annex B, Table B.4 has been changed and Figure B.1 and Figure B.2 have been deleted;
c) Annex C is new installation profiles for CP19/3 and related references have been added;
d) Annex D is new installation profiles for CP19/4 and related references have been added.
The text of this International Standard is based on the following documents:
Draft Report on voting
65C/1281/FDIS 65C/1296/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of IEC 61784-5 series, published under the general title Industrial networks –
Profiles – Installation of fieldbuses, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
This document is one of a series produced to facilitate the use of communication networks in
industrial control systems.
IEC 61918:20132018 and IEC 61918:2018/AMD1:2022 and IEC 61918/AMD2:2024 provide the
common requirements for the installation of communication networks in industrial control
systems. This installation profile standard provides 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 (see Figure 1).
For general background on fieldbuses, their profiles, and relationship between the installation
profiles specified in this document, see IEC 61158-1.
Each CP installation profile is specified in a separate annex of this document. Each annex is
structured exactly as the reference standard IEC 61918 for the benefit of the persons
representing the roles in the fieldbus installation process as defined in IEC 61918 (planner,
installer, verification personnel, validation personnel, maintenance personnel, administration
personnel). By reading the installation profile in conjunction with IEC 61918, these persons
immediately know which requirements are common for the installation of all CPs and which are
modified or replaced. The conventions used to draft this document are defined in Clause 5.
The provision of the installation profiles in one standard for each CPF (for example
IEC 61784-5-19 for CPF 19) allows readers to work with standards of a convenient size.

– 10 – IEC 61784-5-19:2024 RLV © IEC 2024

Figure 1 – Standards relationships

INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-19: Installation of fieldbuses –
Installation profiles for CPF 19

1 Scope
TM1
This part of IEC 61784-5 specifies the installation profile for CPF 19 (MECHATROLINK ).
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:20132018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61918:20132018 , Industrial communication networks – Installation of communication
networks in industrial premises
IEC 61918:2018/AMD1:2022
IEC 61918:2018/AMD2:2024
The normative references of IEC 61918:2013, Clause 2, apply. For profile specific normative
references, see Clause A.2.
NOTE For profile specific normative references, see Clauses A.2, B.2, C.2, D.2.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms given in
IEC 61918:2013, Clause 3, apply. For profile specific terms, definitions and abbreviated terms
see Clauses A.3 and B.3.
For the purposes of this document, the terms, definitions and abbreviated terms given in
IEC 61918:2018, Clause 3, IEC 61918:2018/AMD1:2022, Clause 3 and Clauses A.3, B.3, C.3,
and D.3,apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
___________
TM TM
1 MECHATROLINK and Σ-LINK II are trade names of YASKAWA ELECTRIC CORPORATION. This information
is given for the convenience of users of this document and does not constitute an endorsement by IEC of the
trade names holder or any of its products. Compliance to this profile does not require use of the trade names.
Use of the trade name MECHATROLINK requires permission of the trade name holder.
The normative references of IEC 61918:2018, Clause 2, IEC 61918:2018/AMD1:2022, Clause 2 and
IEC 61918:2018/AMD2:2024, Clause 2, apply.

– 12 – IEC 61784-5-19:2024 RLV © IEC 2024
4 CPF19: Overview of installation profiles
CPF 19 consists of two four communication profiles as specified in IEC 61784-1 and IEC 61784-
2.
TM
The installation requirements for CP 19/1 (MECHATROLINK -II) are specified in Annex A.
TM
The installation requirements for CP 19/2 (MECHATROLINK -III) are specified in Annex B.
TM
The installation requirements for CP 19/3 (∑-LINK II) are specified in Annex C.
TM
The installation requirements for CP 19/4 (MECHATROLINK -4) are specified in Annex D.
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this document corresponds to
the numbering of IEC 61918 main clauses and subclauses.
The annex clauses and subclauses of this document supplement, modify, or replace the
respective clauses and subclauses in IEC 61918.
Where there is no corresponding subclause of IEC 61918 in the normative annexes in this
document, the subclause of IEC 61918 applies without modification.
The annex heading letter represents the installation profile assigned in Clause 4. The annex
heading number shall represent the corresponding numbering of IEC 61918.
EXAMPLE "Subclause B.4.4" in IEC 61784-5-19 means that CP 19/2 specifies 4.4 of IEC 61918:2018 and
IEC 61918:2018/AMD1:2022.
All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each
normative installation profile annex.
If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause
applies.
If in a (sub)clause it is written "Not applicable.", then the corresponding IEC 61918 (sub)clause
does not apply.
If in a (sub)clause it is written "Addition:", then the corresponding IEC 61918 (sub)clause
applies with the additions written in the profile.
If in a (sub)clause it is written "Replacement:", then the text provided in the profile replaces the
text of the corresponding IEC 61918 (sub)clause.
NOTE A replacement can also comprise additions.
If in a (sub)clause it is written "Modification:", then the corresponding IEC 61918 (sub)clause
applies with the modifications written in the profile.
If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written
"(Sub)clause x has addition:" (or "Replacement:") or "(Sub)clause x is not applicable.", then
(sub)clause x becomes valid as declared and all the other corresponding
IEC 61918 (sub)clauses apply.
6 Conformance to installation profiles
Each installation profile within this document includes parts of IEC 61918:20132018 and
IEC 61918:2018/AMD1:2022. It may can also include defined additional specifications.
A statement of compliance to an installation profile of this document shall be stated as either
Compliance to with IEC 61784-5-19:2013 2024 for CP 19/nm or
Compliance to with IEC 61784-5-19 (Ed.12.0) for CP 19/nm
where the name within the angle brackets < > is optional and the angle brackets are shall not
to be included. The n m within CP 19/nm shall be replaced by the profile number 1 to 24.
NOTE The name can be the name of the profile, for example MECHATROLINK-II, MECHATROLINK-III, Σ-LINK II
or MECHATROLINK-III4.
If the name is a trade name, then the permission of the trade name holder shall be required.
Product standards shall not include any conformity assessment aspects (including quality
management provisions), neither normative nor informative, other than provisions for product
testing (evaluation and examination).

___________
In accordance with ISO/IEC Directives.
The date should not be used when the edition number is used.

– 14 – IEC 61784-5-19:2024 RLV © IEC 2024
Annex A
(normative)
CP 19/1 (MECHATROLINK™-II) specific installation profile
A.1 Installation profile scope
Addition:
This annex specifies the installation profile for Communication Profile CP 19/1
TM
(MECHATROLINK -II). The CP 19/1 is specified in IEC 61784-1.
A.2 Normative references
Addition:
ANSI TIA/EIA-485-A, Electrical Characteristics of Generators and Receivers for Use in
Balanced Digital Multipoint Systems
A.3 Installation profile terms, definitions, and abbreviated terms
A.3.1 Terms and definitions
Addition:
A.3.1.7993
C1 master
master device which initiates cyclic data transfer with slave devices
A.3.1.8094
C2 master
master device which initiates message data exchange with other devices
A.3.1.8195
master
device that controls the data transfer on the CP 19/1 network and initiates the media access of
the slaves by sending messages and that constitutes the interface to the control system
A.3.1.8296
slave
device that accesses the medium only after it has been initiated by the preceding master
A.3.2 Abbreviated terms
Addition:
TM
M-II
MECHATROLINK -II
USB Universal Serial Bus
A.3.3 Conventions for installation profiles
Not applicable.
A.4 Installation planning
A.4.1 General
Subclause 4.1.4 is not applicable.
A.4.2 Planning requirements
A.4.2.1 Safety
A.4.2.1.1 General
A.4.2.1.2 Electric safety
A.4.2.1.3 Functional safety
Not applicable.
A.4.2.1.4 Intrinsic safety
Not applicable.
A.4.2.1.5 Safety of optical fibre communication systems
Not applicable.
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.3.1 Description methodology
A.4.2.3.2 Use of the described environment to produce a bill of material
A.4.2.4 Specific requirements for generic cabling in accordance with ISO/IEC 24702
11801‑3
A.4.3 Network capabilities
A.4.3.1 Network topology
A.4.3.1.1 Common description
A.4.3.1.2 Basic physical topologies for passive networks
ModificationAddition:
CP 19/1 network supports only passive bus topology.
A.4.3.1.3 Basic physical topologies for active networks
Not applicable.
– 16 – IEC 61784-5-19:2024 RLV © IEC 2024
A.4.3.1.4 Combination of basic topologies
A.4.3.1.5 Specific requirements for CPs
Addition:
CP 19/1 supports passive bus topology by daisy chain connection of devices. Passive star
topology is not supported and spurs shall not be used. Figure A.1 shows the CP 19/1 passive
bus network.
Figure A.1 – Topology of CP 19/1 network
CP 19/1 supports interconnection of two passive bus segments by an active bus repeater. Only
one repeater is allowed as shown in Figure A.2.

Figure A.2 – Network expansion using repeater
A.4.3.1.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702 11801-3
A.4.3.2 Network characteristics
A.4.3.2.1 General
A.4.3.2.2 Network characteristics for balanced cabling not based on Ethernet
Replacement:
Table A.1 provides values based on the template given in IEC 61918:20132018, Table 1.

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet
TM
Characteristic
CP 19/1 (MECHATROLINK -II)
Basic transmission technology ANSI TIA/EIA-485-A Linear bus
Length/transmission speed Segment length
m
10 Mbit/s 50 (less than 17 devices)
30 (17 devices)
Maximum capacity Max. no.
Devices/segment 17
Devices/network 32
A.4.3.2.3 Network characteristics for balanced cabling based on Ethernet
Not applicable.
A.4.3.2.4 Network characteristics for optical fibre cabling
Not applicable.
A.4.3.2.5 Specific network characteristics
Addition:
The relationship between the number of devices and the max
...

IEC 61784-5-19 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 5-19: Installation of fieldbuses – Installation profiles for CPF 19

Réseaux industriels – Profils –
Partie 5-19: Installation des bus de terrain – Profils d'installation pour CPF 19
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IEC 61784-5-19 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 5-19: Installation of fieldbuses – Installation profiles for CPF 19

Réseaux industriels – Profils –

Partie 5-19: Installation des bus de terrain – Profils d'installation pour CPF 19

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40, 35.100.40 ISBN 978-2-8322-8351-6

– 2 – IEC 61784-5-19:2024 © IEC 2024
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 10
4 CPF19: Overview of installation profiles . 10
5 Installation profile conventions. 11
6 Conformance to installation profiles . 12
Annex A (normative) CP 19/1 (MECHATROLINK™-II) specific installation profile . 13
A.1 Installation profile scope . 13
A.2 Normative references . 13
A.3 Installation profile terms, definitions, and abbreviated terms . 13
A.3.1 Terms and definitions . 13
A.3.2 Abbreviated terms . 13
A.3.3 Conventions for installation profiles . 13
A.4 Installation planning . 14
A.4.1 General . 14
A.4.2 Planning requirements . 14
A.4.3 Network capabilities . 14
A.4.4 Selection and use of cabling components . 16
4.4.3.3.1Common description . 21
A.4.5 Cabling planning documentation . 24
A.4.6 Verification of cabling planning specification . 24
A.5 Installation implementation. 24
A.5.1 General requirements . 24
A.5.2 Cable installation . 24
A.5.3 Connector installation . 26
A.5.4 Terminator installation . 27
A.5.5 Device installation . 27
A.5.6 Coding and labelling . 27
A.5.7 Earthing and bonding of equipment and devices and shield cabling . 27
A.5.8 As-implemented cabling documentation . 27
A.6 Installation verification and installation acceptance test . 28
A.6.1 General . 28
A.6.2 Installation verification . 28
A.6.3 Installation acceptance test . 29
A.7 Installation administration . 29
A.8 Installation maintenance and installation troubleshooting . 30
A.8.1 General . 30
A.8.2 Maintenance . 30
A.8.3 Troubleshooting . 30
A.8.4 Specific requirements for maintenance and troubleshooting . 30
Annex B (normative) CP 19/2 (MECHATROLINK™-III) specific installation profile . 32
B.1 Installation profile scope . 32
B.2 Normative references . 32
B.3 Installation profile terms, definitions, and abbreviated terms . 32

B.3.1 Terms and definitions . 32
B.3.2 Abbreviated terms . 32
B.3.3 Conventions for installation profiles . 32
B.4 Installation planning . 32
B.4.1 General . 32
B.4.2 Planning requirements . 32
B.4.3 Network capabilities . 33
B.4.4 Selection and use of cabling components . 34
B.4.5 Cabling planning documentation . 39
B.4.6 Verification of cabling planning specification . 39
B.5 Installation implementation. 39
B.5.1 General requirements . 39
B.5.2 Cable installation . 39
B.5.3 Connector installation . 40
B.5.4 Terminator installation . 41
B.5.5 Device installation . 41
B.5.6 Coding and labelling . 41
B.5.7 Earthing and bonding of equipment and devices and shield cabling . 41
B.5.8 As-implemented cabling documentation . 41
B.6 Installation verification and installation acceptance test . 42
B.6.1 General . 42
B.6.2 Installation verification . 42
B.6.3 Installation acceptance test . 43
B.7 Installation administration . 43
B.8 Installation maintenance and installation troubleshooting . 43
Annex C (normative) CP19/3 (Σ-LINK™ II) specific installation profile . 44
C.1 Installation profile scope . 44
C.2 Normative references . 44
C.3 Installation profile terms, definitions, and abbreviated terms . 44
C.3.1 Terms and definitions . 44
C.3.2 Abbreviated terms . 44
C.3.3 Conventions for installation profiles . 44
C.4 Installation planning . 44
C.4.1 General . 44
C.4.2 Planning requirements . 44
C.4.3 Network capabilities . 45
C.4.4 Selection and use of cabling components . 46
C.4.5 Cabling planning documentation . 58
C.4.6 Verification of cabling planning specification . 58
C.5 Installation implementation. 58
C.5.1 General requirements . 58
C.5.2 Cable installation . 59
C.5.3 Connector installation . 60
C.5.4 Terminator installation . 61
C.5.5 Device installation . 61
C.5.6 Coding and labelling . 61
C.5.7 Earthing and bonding of equipment and devices and shield cabling . 61
C.5.8 As-implemented cabling documentation . 61
C.6 Installation verification and installation acceptance test . 61

– 4 – IEC 61784-5-19:2024 © IEC 2024
C.6.1 General . 61
C.6.2 Installation verification . 61
C.6.3 Installation acceptance test . 62
C.7 Installation administration . 63
C.8 Installation maintenance and installation troubleshooting . 63
Annex D (normative) CP 19/4 (MECHATROLINK™-4) specific installation profile . 64
D.1 Installation profile scope . 64
D.2 Normative references . 64
D.3 Installation profile terms, definitions, and abbreviated terms . 64
D.3.1 Terms and definitions . 64
D.3.2 Abbreviated terms . 64
D.3.3 Conventions for installation profiles . 64
D.4 Installation planning . 64
D.4.1 General . 64
D.4.2 Planning requirements . 64
D.4.3 Network capabilities . 65
D.4.4 Selection and use of cabling components . 66
D.4.5 Cabling planning documentation . 72
D.4.6 Verification of cabling planning specification . 72
D.5 Installation implementation. 72
D.5.1 General requirements . 72
D.5.2 Cable installation . 72
D.5.3 Connector installation . 74
D.5.4 Terminator installation . 75
D.5.5 Device installation . 75
D.5.6 Coding and labelling . 75
D.5.7 Earthing and bonding of equipment and devices and shield cabling . 75
D.5.8 As-implemented cabling documentation . 75
D.6 Installation verification and installation acceptance test . 75
D.6.1 General . 75
D.6.2 Installation verification . 75
D.6.3 Installation acceptance test . 76
D.7 Installation administration . 77
D.8 Installation maintenance and installation troubleshooting . 77
Bibliography . 78

Figure 1 – Standards relationships . 9
Figure A.1 – Topology of CP 19/1 network . 15
Figure A.2 – Network expansion using repeater . 15
Figure A.3 – Structure of cable . 18
Figure A.4 – Dimensions of single port device connector . 19
Figure A.5 – Dimensions of dual ports device connector . 20
Figure A.6 – Dimensions of cable connector . 20
Figure A.7 – Cable connector with inductors . 21
Figure A.8 – Terminator connection in cable connector housing . 22
Figure A.9 – Wiring example . 26
Figure A.10 – Terminator installed in M-II cable connector . 27

Figure A.11 – Division of network segment by changing terminator location . 31
Figure C.1 – Topology of CP 19/3 combination of linear and T-branch network . 45
Figure C.2 – Topology of CP 19/3 network example with Power adaptor . 46
Figure C.3 – Structure of 6-conductor cable . 49
Figure C.4 – Structure of 8-conductor cable . 49
Figure C.5 – Connection for linear network . 50
Figure C.6 – Dimensions of device 6 pin connector . 51
Figure C.7 – Dimensions of device 6 pin connector . 51
Figure C.8 – Dimensions of device 6 pin connector . 52
Figure C.9 – Dimensions of device 8 pin male connector . 52
Figure C.10 – Dimensions of ejector for device 8 pin male connector . 53
Figure C.11 – Dimensions of device 8 pin female connector . 53
Figure C.12 – Dimensions of cable 6 pin male connector . 54
Figure C.13 – Dimensions of cable 6 pin female connector . 54
Figure C.14 – Dimensions of cable 8 pin male connector . 54
Figure C.15 – Dimensions of cable 8 pin female connector . 55

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet . 16
Table A.2 – Number of devices and maximum segment length . 16
Table A.3 – Information relevant to copper cable: fixed cables . 17
Table A.4 – Additional cable specifications . 17
Table A.5 – Connectors for copper cabling CPs not based on Ethernet . 18
Table A.6 – Parameters for balanced cables . 25
Table A.7 – Pin assignment and wire colour coding for CP 19/1 connector . 26
Table A.8 – Typical problems in a network with balanced cabling. 30
Table B.1 – Network characteristics for balanced cabling based on Ethernet . 34
Table B.2 – Information relevant to copper cable: fixed cables . 35
Table B.3 – Information relevant to copper cable: cords . 35
Table B.4 – Connectors for balanced cabling CPs based on Ethernet . 36
Table B.5 – Parameters for balanced cables . 39
Table B.6 – Pin assignment and wire colour coding for CP 19/2 modular and IMI
connector . 41
Table B.7 – Pin assignment and wire colour coding for CP 19/2 M12 connector . 41
Table C.1 – Basic network characteristics for balanced cabling not based on Ethernet . 46
Table C.2 – Information relevant to 6-conductor copper cable . 47
Table C.3 – Information relevant to 8-conductor copper cable . 48
Table C.4 – Additional cable specifications . 48
Table C.5 – Connectors for copper cabling CPs not based on Ethernet . 50
Table C.6 – Electric characteristics of 6pin connector . 55
Table C.7 – Electric characteristics of 8pin connector . 55
Table C.8 – Parameters for balanced cables . 59
Table C.9 – Pin assignment and wire colour coding for CP 19/3 6 pin connector . 60
Table C.10 – Pin assignment and wire colour coding for CP 19/3 8 pin connector . 60

– 6 – IEC 61784-5-19:2024 © IEC 2024
Table D.1 – Network characteristics for balanced cabling based on Ethernet . 66
Table D.2 – Information relevant to copper cable: CP 19/4 type A fixed cables . 67
Table D.3 – Information relevant to copper cable: CP 19/4 type B fixed cables . 67
Table D.4 – Information relevant to copper cable: CP 19/4 type A fixed cords . 68
Table D.5 – Information relevant to copper cable: CP 19/4 type B fixed cords . 68
Table D.6 – Connectors for balanced cabling CPs based on Ethernet . 69
Table D.7 – Parameters for balanced cables . 73
Table D.8 – Pin assignment and wire colour coding for CP 19/4 modular and IMI
connector . 74
Table D.9 – Pin assignment and wire colour coding for CP 19/4 M12-4 connector. 74
Table D.10 – Pin assignment and wire colour coding for CP 19/4 M12-8 connector . 74

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 5-19: Installation of fieldbuses –
Installation profiles for CPF 19

FOREWORD
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6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of a patent.
IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect
thereof. As of the date of publication of this document, IEC had not received notice of a patent, which may be
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information, which may be obtained from the patent database available at https://patents.iec.ch. IEC shall not be
held responsible for identifying any or all such patent rights.
IEC 61784-5-19 has been prepared by subcommittee 65C: Industrial networks, of IEC technical
committee 65: Industrial-process measurement, control and automation. It is an International
Standard.
This document is to be used in conjunction with IEC 61918:2018, IEC 61918:2018/AMD1:2022
and IEC 61918:2018/AMD2:2024.
This second edition cancels and replaces the first edition published in 2013. This edition
constitutes a technical revision.

– 8 – IEC 61784-5-19:2024 © IEC 2024
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of new installation profiles CP19/3 and CP19/4 in Clause 4;
b) In Annex B, Table B.4 has been changed and Figure B.1 and Figure B.2 have been deleted;
c) Annex C is new installation profiles for CP19/3 and related references have been added;
d) Annex D is new installation profiles for CP19/4 and related references have been added.
The text of this International Standard is based on the following documents:
Draft Report on voting
65C/1281/FDIS 65C/1296/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of IEC 61784-5 series, published under the general title Industrial networks –
Profiles – Installation of fieldbuses, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
This document is one of a series produced to facilitate the use of communication networks in
industrial control systems.
IEC 61918:2018 and IEC 61918:2018/AMD1:2022 and IEC 61918/AMD2:2024 provide the
common requirements for the installation of communication networks in industrial control
systems. This installation profile standard provides 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 (see Figure 1).
For general background on fieldbuses, their profiles, and relationship between the installation
profiles specified in this document, see IEC 61158-1.
Each CP installation profile is specified in a separate annex of this document. Each annex is
structured exactly as the reference standard IEC 61918 for the benefit of the persons
representing the roles in the fieldbus installation process as defined in IEC 61918 (planner,
installer, verification personnel, validation personnel, maintenance personnel, administration
personnel). By reading the installation profile in conjunction with IEC 61918, these persons
immediately know which requirements are common for the installation of all CPs and which are
modified or replaced. The conventions used to draft this document are defined in Clause 5.
The provision of the installation profiles in one standard for each CPF (for example
IEC 61784-5-19 for CPF 19) allows readers to work with standards of a convenient size.

Figure 1 – Standards relationships

– 10 – IEC 61784-5-19:2024 © IEC 2024
INDUSTRIAL NETWORKS –
PROFILES –
Part 5-19: Installation of fieldbuses –
Installation profiles for CPF 19

1 Scope
TM1
This part of IEC 61784-5 specifies the installation profile for CPF 19 (MECHATROLINK ).
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61918:2018 , Industrial communication networks – Installation of communication networks
in industrial premises
IEC 61918:2018/AMD1:2022
IEC 61918:2018/AMD2:2024
NOTE For profile specific normative references, see Clauses A.2, B.2, C.2, D.2.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms given in
IEC 61918:2018, Clause 3, IEC 61918:2018/AMD1:2022, Clause 3 and Clauses A.3, B.3, C.3,
and D.3,apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
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4 CPF19: Overview of installation profiles
CPF 19 consists of four communication profiles as specified in IEC 61784-1 and IEC 61784-2.
TM
The installation requirements for CP 19/1 (MECHATROLINK -II) are specified in Annex A.
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TM TM
1 MECHATROLINK and Σ-LINK II are trade names of YASKAWA ELECTRIC CORPORATION. This information
is given for the convenience of users of this document and does not constitute an endorsement by IEC of the
trade names holder or any of its products. Compliance to this profile does not require use of the trade names.
Use of the trade name requires permission of the trade name holder.
The normative references of IEC 61918:2018, Clause 2, IEC 61918:2018/AMD1:2022, Clause 2 and
IEC 61918:2018/AMD2:2024, Clause 2, apply.

TM
The installation requirements for CP 19/2 (MECHATROLINK -III) are specified in Annex B.
TM
The installation requirements for CP 19/3 (∑-LINK II) are specified in Annex C.
TM
The installation requirements for CP 19/4 (MECHATROLINK -4) are specified in Annex D.
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this document corresponds to
the numbering of IEC 61918 main clauses and subclauses.
The annex clauses and subclauses of this document supplement, modify, or replace the
respective clauses and subclauses in IEC 61918.
Where there is no corresponding subclause of IEC 61918 in the normative annexes in this
document, the subclause of IEC 61918 applies without modification.
The annex heading letter represents the installation profile assigned in Clause 4. The annex
heading number shall represent the corresponding numbering of IEC 61918.
EXAMPLE "Subclause B.4.4" in IEC 61784-5-19 means that CP 19/2 specifies 4.4 of IEC 61918:2018 and
IEC 61918:2018/AMD1:2022.
All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each
normative installation profile annex.
If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause
applies.
If in a (sub)clause it is written "Not applicable.", then the corresponding IEC 61918 (sub)clause
does not apply.
If in a (sub)clause it is written "Addition:", then the corresponding IEC 61918 (sub)clause
applies with the additions written in the profile.
If in a (sub)clause it is written "Replacement:", then the text provided in the profile replaces the
text of the corresponding IEC 61918 (sub)clause.
NOTE A replacement can also comprise additions.
If in a (sub)clause it is written "Modification:", then the corresponding IEC 61918 (sub)clause
applies with the modifications written in the profile.
If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written
"(Sub)clause x has addition:" (or "Replacement:") or "(Sub)clause x is not applicable.", then
(sub)clause x becomes valid as declared and all the other corresponding
IEC 61918 (sub)clauses apply.
– 12 – IEC 61784-5-19:2024 © IEC 2024
6 Conformance to installation profiles
Each installation profile within this document includes parts of IEC 61918:2018 and
IEC 61918:2018/AMD1:2022. It can also include defined additional specifications.
A statement of compliance to an installation profile of this document shall be stated as either
Compliance with IEC 61784-5-19:2024 for CP 19/m or
Compliance with IEC 61784-5-19 (Ed.2.0) for CP 19/m
where the name within the angle brackets < > is optional and the angle brackets shall not be
included. The m within CP 19/m shall be replaced by the profile number 1 to 4.
NOTE The name can be the name of the profile, for example MECHATROLINK-II, MECHATROLINK-III, Σ-LINK II
or MECHATROLINK-4.
If the name is a trade name, then the permission of the trade name holder shall be required.
Product standards shall not include any conformity assessment aspects (including quality
management provisions), neither normative nor informative, other than provisions for product
testing (evaluation and examination).

Annex A
(normative)
CP 19/1 (MECHATROLINK™-II) specific installation profile
A.1 Installation profile scope
Addition:
This annex specifies the installation profile for Communication Profile CP 19/1
TM
(MECHATROLINK -II). The CP 19/1 is specified in IEC 61784-1.
A.2 Normative references
Addition:
TIA-485-A, Electrical Characteristics of Generators and Receivers for Use in Balanced Digital
Multipoint Systems
A.3 Installation profile terms, definitions, and abbreviated terms
A.3.1 Terms and definitions
Addition:
A.3.1.93
C1 master
master device which initiates cyclic data transfer with slave devices
A.3.1.94
C2 master
master device which initiates message data exchange with other devices
A.3.1.95
master
device that controls the data transfer on the CP 19/1 network and initiates the media access of
the slaves by sending messages and that constitutes the interface to the control system
A.3.1.96
slave
device that accesses the medium only after it has been initiated by the preceding master
A.3.2 Abbreviated terms
Addition:
TM
M-II
MECHATROLINK -II
USB Universal Serial Bus
A.3.3 Conventions for installation profiles
Not applicable.
– 14 – IEC 61784-5-19:2024 © IEC 2024
A.4 Installation planning
A.4.1 General
Subclause 4.1.4 is not applicable.
A.4.2 Planning requirements
A.4.2.1 Safety
A.4.2.1.1 General
A.4.2.1.2 Electric safety
A.4.2.1.3 Functional safety
Not applicable.
A.4.2.1.4 Intrinsic safety
Not applicable.
A.4.2.1.5 Safety of optical fibre communication systems
Not applicable.
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.3.1 Description methodology
A.4.2.3.2 Use of the described environment to produce a bill of material
A.4.2.4 Specific requirements for generic cabling in accordance with
ISO/IEC 11801‑3
A.4.3 Network capabilities
A.4.3.1 Network topology
A.4.3.1.1 Common description
A.4.3.1.2 Basic physical topologies for passive networks
Addition:
CP 19/1 network supports only passive bus topology.
A.4.3.1.3 Basic physical topologies for active networks
Not applicable.
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