IEC 61784-5-2:2018/AMD1:2024

Amendment 1 - Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2

IEC 61784-5-X: 2023 (EN) is one of a series produced to facilitate the use of communication networks in industrial control systems.

Amendement 1 - Réseaux de communication industriels - Profils - Partie 5-2: Installation des bus de terrain - Profils d’installation pour CPF 2

General Information

• Status: Published
• Publication Date: 20-Mar-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: 21-Mar-2024
• Completion Date: 29-Mar-2024

Relations

• Amends: IEC 61784-5-2:2018 - Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2
• Effective Date: 23-Feb-2024

Standards Content (Sample)

IEC 61784-5-2 ®
Edition 4.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
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/AMD1:2024-03(en-fr)

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IEC 61784-5-2 ®
Edition 4.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
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 978-2-8322-8401-8

– 2 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-2: Installation of fieldbuses –
Installation profiles for CPF 2

AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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the latest 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.
Amendment 1 to IEC 61784-5-2:2018 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
© IEC 2024
The text of this Amendment is based on the following documents:
Draft Report on voting
65C/1283/FDIS 65C/1297/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 Amendment 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, 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 to Amendment 1
This Amendment 1 includes the following significant technical changes with respect to
IEC 61784-5-2:2018:
a) Updated references of IEC 61918:2018 to include additions of IEC 61918:2018/AMD1:2022
and IEC 61918:2018/AMD2:2024,
b) Added references for consideration of security to Subclause B.4.2.2,
c) Updated optical fiber specifications and references in Subclauses B.4.3.3.2 and B.4.4.1.4,
d) Added definition of electromagnetic compatibility options for conformance to Subclause
B.4.4.1.2.1,
e) Added support of mesh bonding systems to Subclause B.4.4 and Clause B.5,
f) Added acceptance of end-to-end link verification and certification testing to Clause B.6.

– 4 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
FOREWORD
Insert, after the first paragraph, the following new paragraph:
This document is to be used in conjunction with IEC 61918:2018, IEC 61918:2018/AMD1:2022
and IEC 61918:2018/AMD2:2024.
Delete, below the list of modifications, the following paragraph:
This standard is to be used in conjunction with IEC 61918:2018.
INTRODUCTION
Replace, at the beginning of the first paragraph, "International Standard" with "document".
Replace, at the beginning of the second paragraph, "IEC 61918:2018 provides" with
"IEC 61918:2018, IEC 61918:2018/AMD1:2022 and IEC 61918:2018/AMD2:2024 provide".
Replace the existing Figure 1 with the following new figure:

Figure 1 – Standards relationships

© IEC 2024
1 Scope
Replace the existing second paragraph with the following new paragraph:
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
Replace the existing reference to IEC 61918 with the following new reference:
IEC 61918:2018 , Industrial communication networks – Installation of communication networks
in industrial premises
IEC 61918:2018/AMD1:2022
IEC 61918:2018/AMD2:2024
Delete the last sentence before the NOTE.
3 Terms, definitions and abbreviated terms
Replace, in the first sentence, "IEC 61918:2018 Clause 3" with "IEC 61918:2018, Clause 3,
IEC 61918:2018/AMD1:2022, Clause 3, and Clauses A.3, B.3, C.3 of this document".
Delete the NOTE after the last bullet.
6 Conformance to installation profiles
Delete, in the first sentence of the second paragraph, the footnote.
Replace the existing two items in the list of the second paragraph with the following new items:
Compliance with IEC 61784-5-2:2018 and IEC 61784-5-2:2018/AMD1:2024 for CP 2/m
or
Compliance with IEC 61784-5-2 (Ed.4.1) for CP 2/m .
Replace, in the sentence after the two items, "are not to be" with "shall not be".
Replace, in the NOTE, "may" with "can".
TM
Annex B − CP2/2 (EtherNet/IP ) specific installation profile
B.2 Normative references
Add the following new references:
IEC 60793-2-30, Optical fibres – Part 2-30: Product specifications – Sectional specification for
category A3 multimode fibres
IEEE Std 802.1Q-2018, IEEE Standard for Local and Metropolitan Area Networks – Bridges and
Bridged Networks
___________
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.

– 6 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
Replace "ANSI/TIA-568-C.1" with "ANSI/TIA-568.2-D" (no change to title).
B.4.2.2 Security
Replace the existing last paragraph with the following new paragraph and note:
CP 2/2 has provisions for supporting secure system designs aligned with IEC 62443. For each
security level as defined by IEC 62443 there are different measures such as identification and
authentication, data access control, tamper detection, data access restriction, data
confidentiality, response time, and resource availability. Aspects of the system could need
mitigations depending on the level of security risk identified.
NOTE See ODVA: PUB00148 [45] for more information on securing the installation of CP 2/2 systems. See
ANSI/TIA 5017 [46] for more information for deterrence or restricted access measures that can be taken for securing
the physical infrastructure of zones where it is deemed necessary or appropriate.
B.4.3.1.4 Combination of basic topologies
Replace "Not applicable" with the following new text and figure:
Replacement:
Combination of topologies is achieved through bridging defined in IEEE Std 802.1Q-2018 and
subsequent documents. CP 2/2 provides for routing of data through active topologies and allows
interfacing of all equipment through a hierarchical star topology. This is typically facilitated
through a network zone approach where an individual node on a network can be replaced with
an entire subnetwork configured in an independent topology such as a ring, active linear bus,
redundant active linear bus, or an additional active star. This concept is shown in Figure B.18.

Figure B.18 – Example of combination of basic active topologies
B.4.3.2.4 Network characteristics for optical fibre cabling
Replace, in the first row of Table B.2, "Bandwidth (MHz)" with "Bandwidth (Mbit/s)".
Replace, in the second column of Table B.2, all occurrences of "Modal bandwidth (MHz × km)"
with "Bandwidth (Mbit/s)".
Replace, in the third column of Table B.2, all occurrences of "MHz" with "Mbit/s".

© IEC 2024
Replace the existing Table B.5 with the following new table:
Table B.5 – Recognized fibre types
Fibre type Supported Designations Bandwidth at Standard
fibres 850 nm/1 310 nm
Multimode 62,5 µm/125 µm OM1 200 MHz × km/500 MHz × IEC 60793-2-10, type A1-
km OM1
62,5 µm/ OM1 200 MHz × km/500 MHz × IEC 60793-2-30, type A3g
200 µm/230 µm km
50 µm/125 µm OM2 500 MHz × km/500 MHz × IEC 60793-2-10, type A1-
km OM2
OM3 2 000 MHz × km/ IEC 60793-2-10, type A1-
500 MHz × km OM3
OM4 4 700 MHz × km/ IEC 60793-2-10, type A1-
500 MHz × km OM4
OM5 4 700 MHz × km/ IEC 60793-2-10, type A1-
500 MHz × km OM5
50 µm/200 µm/ OM2 400 MHz × km/ IEC 60793-2-30, type A3f
230 µm 400 MHz × km
Single-mode 9 µm/125 µm OS1 N/A IEC 60793-2-50, type B-
652.B
OS2 N/A IEC 60793-2-50, type B-
652.D
Setp Index 980 µm/1 000 µm N/A 4 MHz × km IEC 60793-2-40, type
Multimode A4a.2 and A4d
Add, in all cells of the second column of Table B.6, ",OM5" at the end of the list of supported
fibre types.
Replace, in the last row of Table B.6, "1000BASE-LX10" with "1000BASE-LX10 and 100BASE-
LX10".
B.4.4.1.2.1 Balanced cables for Ethernet-based CPs
Replace, in Table B.8, all occurrences of "ANSI/TIA 568-C.2" with "ANSI/TIA 568.2-D".
Replace, in Table B.8, in row "Conductor Gauge", the contents of the right cell with "0,40 mm
to 0,65 mm (26AWG to 22AWG)".
Delete, in Table B.8, rows for "Coupling Attenuation", "Shielding Effectiveness", "TCL", and
"ELTCTL".
Add, after Table B.9, the following new text:
Where category 6 or 6a cables are used, the extended requirements of ANSI/TIA 568.2-D apply
in addition to the requirements listed in this Subclause B.4.4.1.2.1.
Replace all existing text and tables at the end of the subclause beginning at "Modification:" with
the following new text and tables:

– 8 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
Addition:
Cables shall be selected based on ability to support one of the four options of channel and link
electromagnetic performance as defined below.
a) The UTP cable supporting 10BASE-T or 100BASE-T applications shall be selected and
installed based on the ability to meet the Transverse Conversion Loss (TCL) and Equal
Level Transverse Conversion Transfer Loss (ELTCTL) requirements at both ends of the
cabling in accordance with Table B.27 and the environment local to the cabling.
Table B.27 – Unbalance attentuation limits for unshielded twisted-pair cabling
serving 10BASE-T and 100BASE-T applications
Parameter Frequency Limit
a
MHz
dB
TCL 1 ≤ f < 100 Compliant with ISO/IEC 11801 series
ELTCTL 1 ≤ f < 30 Compliant with ISO/IEC 11801 series
a
Limits are applicable to all environmental classifications aligned with delineation in ISO/IEC 11801-1.

b) The UTP cable supporting 1000BASE-T applications shall be selected and installed based
on the ability to meet the Transverse Conversion Loss (TCL) and Equal Level Transverse
Conversion Transfer Loss (ELTCTL) requirements at both ends of the cabling in accordance
with Table B.28 and the environment local to the cabling.
Table B.28 – Unbalance attenuation limits for unshielded twisted-pair cabling
serving 1000BASE-T applications with enhanced components
Parameter Frequency Limit
MHz dB
E1 E2 E3
TCL 1 ≤ f < 30 Compliant with 69,2 – 15 × log (f) 79,2 – 15 × log (f)
10 10
ISO/IEC 11801
1 ≤ f ≤ 100
series 76,6 – 20 × log (f) 86,6 – 20 × log (f)
10 10
(max. 40 dB) (max. 46 dB)
ELTCTL 1 ≤ f < 30 Compliant with 42 – 20 × log (f) 52 – 20 × log (f)
10 10
ISO/IEC 11801
series (max. 40 dB) (max. 40 dB)

c) The UTP cable supporting 1000BASE-T applications shall be selected and installed based
on the ability to meet the Transverse Conversion Loss (TCL) and Equal Level Transverse
Conversion Transfer Loss (ELTCTL) requirements at both ends of the cabling while also
restricting the insertion loss and indirectly the associated cable length in accordance with
Table B.29 and the environment local to the cabling. Under this condition the nominal
maximum cable length is limited to 72 m instead of the expected 100 m.

© IEC 2024
Table B.29 – Unbalance attenuation limits for unshielded twisted-pair cabling
serving 1000BASE-T applications with length derating
Parameter Frequency Limit
a
MHz
dB
Insertion Loss 1 ≤ f ≤100
0, 72× 1, 967 f + 0, 023×+f 0,/1 f

( )
TCL 1 ≤ f ≤100 Compliant with ISO/IEC 11801 series
ELTCTL 1 ≤ f ≤30 Compliant with ISO/IEC 11801 series
a
Limits are applicable to all environmental classifications aligned with delineation in ISO/IEC 11801-1.

d) The shielded cable shall be selected and installed based on the ability to meet the coupling
attenuation requirements at both ends of the cabling in accordance with Table B.30 and the
environment local to the cabling. Coupling attenuation (see Table B.30) shall be measured
in accordance with IEC 61156-5.
Table B.30 – Coupling attenuation limits for screened twisted-pair cabling
Parameter Frequency Limit
a
MHz
dB
Coupling 30 ≤ f ≤100 Compliant with ISO/IEC 11801 series
Attenuation
a
Limits are applicable to all environmental classifications aligned with delineation in ISO/IEC 11801-1

B.4.4.1.4 Optical fibre cables
Replace the existing Table B.15 with the following new table:
Table B.15 – Information relevant to optical fibre cables
Characteristic 9.10/125 µm 50/125 µm 62,5/125 µm 980/1 000 µ 200/230 µm
single mode multimode multimode m step step index
hard clad
silica silica silica index POF
silica
Standard OS1 or OS2 OM2, OM3, OM1 -- --
OM4, OM5
Maximum attenuation per km – – – 18 dB 12 dB
(650 nm)
Maximum attenuation per km – 2,5 dB 3,0 dB – –
(820 nm)
Maximum attenuation per km 0,4 dB 0,8 dB 1,0 dB – –
(1 310 nm)
Number of optical fibres 2 minimum 2 minimum 2 minimum – –
Connector type (e.g. duplex or Duplex, Duplex, Duplex, – –
simplex) duplex-able, duplex-able, duplex-able,
simplex simplex simplex
Jacket colour requirements User defined User defined User defined – –
Jacket material User defined User defined User defined – –
Resistance to harsh As needed to As needed to As needed to – –
environment (e.g. UV, oil support support support
resist, LS0H) application application application
and and and
environment environment environment

– 10 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
B.4.4.2.2 Connecting hardware for balanced cabling CPs based on Ethernet
Replace the existing Table B.17 with the following new table (title and contents):
Table B.17 – Unbalance Attenuation limits for connectors based on
Ethernet serving 1000BASE-T applications
Parameter Frequency Limit
MHz dB
E1 E2 E3
TCL 1 ≤ f < 250 Not defined Not defined 94 – 20 × log (f)
TCTL 1 ≤ f < 30 Not defined Not defined 71.5 – 20 × log (f)
Delete, in Tables B.19 and B.20, rows for "Contact rating".
Replace, in Table B.19 and in Table B.20, in row "Contact Plating", the contents of the second
and third cells with the following text:
0,762 µm gold over 1,27 µm nickel or 0,127 µm gold minimum over 0,508 µm palladium
nickel over 1,27 µm nickel or equivalent plating.
Gold shall be 24 karat minimum.
B.4.4.2.5 Connecting hardware for optical fibre cabling
Replace, in Table B.22, in the column "200/230 μm Step index Hard cladded silica", in the cells
corresponding to rows "SC", "ST", and "SC-RJ", "No" with "Yes".
B.4.4.7.4.1 Non-earthing or parallel RC
Delete "Not applicable.".
B.4.4.7.4.2 Direct
Delete "Not applicable.".
B.4.4.7.4.3 Derivatives of direct and parallel RC
Replace, in the first sentence, the word "requires" with "recommends".
B.4.4.7.5 Specific requirements for CPs
Replace "Not applicable" with the following new text and figures:
Addition:
CP 2/2 ranks the shield application according to the applied earthing and bonding system.
a) Star earthing
Ranking of preferred shield termination application in a star earthing arrangement is shown
in Figure B.19 in order from left to right.

© IEC 2024
Figure B.19 – Shield termination in star earthing arrangements
b) Equipotential/mesh earthing
In equiptential/mesh earthing arrangements, application of direct grounding at multiple
points of the cable is preferred (see Figure B.20).

Figure B.20 – Shield termination in mesh earthing arrangements
B.5.3.1 Common description
Replace, in the third sentence of the last paragraph, "See Figure H.2 of IEC 61918:2018" with
"See IEC 61918:2018, Annex H and IEC 61918:2018/AMD1:2022, Annex H".
B.5.7.4.4 Derivatives of direct and parallel RC
Replace, at the beginning of the fourth sentence of the first paragraph, the word "requires" with
"recommends".
Replace the existing last paragraph (in the addition) with the following new paragraph:
If the active device provides a low DC resistance (less than 500 kΩ) to earth at the jack and
connects to a link partner device that also provides a low DC resistance to earth at its jack, an
equalizing shunt conductor shall be used to mitigate earth voltage offsets between the two end
points, see IEC 61918:2018, Figure 35. The sizing of the conductor shall be in accordance with
IEC 61918:2018, Table 14.
B.6.2.1 General
Replace the existing fifth bulleted item with the following new bulleted item:
• presence of dust caps for unused connectorized cabling and equipment;
Replace the existing seventh bulleted item with the following new bulleted item:
• routing of cables with respect to other circuits according to IEC 61918:2018, Table 17.

– 12 – IEC 61784-5-2:2018/AMD1:2024
© IEC 2024
B.6.2.5.1 Verification of cable routing
Replace the existing list items a) and b) with the following new list items a) and b):
a) The length of the end-to-end link or a channel is the sum of the lengths of the fixed horizontal
cables and cords between the two end points. The length of a permanent link is the sum of
the fixed horizontal cable and any intermediary cords not including those cords connecting
directly to the end equipment. Length of the link/channel can be determined by physically
measuring the length(s) of the cable(s), determined from the length markings on the
cable(s), when present.
b) The length of the permanent link shall not be greater than 90 m (295 ft). The length of the
...