IEC 61784-1-0:2023

IEC 61784-1-0
®

Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Industrial networks – Profiles –
Part 1-0: Fieldbus profiles – General concepts and terminology

Réseaux industriels – Profils –
Partie 1-0: Profils de bus de terrain – Concepts généraux et terminologie

IEC 61784-1-0:2023-03(en-fr)

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IEC 61784-1-0

®


Edition 1.0 2023-03




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Industrial networks – Profiles –

Part 1-0: Fieldbus profiles – General concepts and terminology



Réseaux industriels – Profils –

Partie 1-0: Profils de bus de terrain – Concepts généraux et terminologie
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6590-1




Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – IEC 61784-1-0:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviated terms, symbols, and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviations and symbols . 7
3.2.1 IEC 61158 abbreviations and symbols . 7
3.2.2 Other abbreviations and symbols . 7
3.3 Conventions . 8
3.3.1 Conventions common to all layers . 8
3.3.2 Physical layer . 10
3.3.3 Data-link layer . 10
3.3.4 Application layer . 10
4 Conformance to communication profiles . 11
5 Communication profiles and communication profile families . 11
Annex A (informative) Added value of the IEC 61784-1 series . 14
Bibliography . 15

Figure 1 – Communication profile families and profiles . 12

Table 1 – Layout of profile (sub)clause selection tables . 8
Table 2 – Contents of (sub)clause selection tables . 8
Table 3 – Layout of service selection tables . 9
Table 4 – Contents of service selection tables . 9
Table 5 – Layout of parameter selection tables . 9
Table 6 – Contents of parameter selection tables. 9
Table 7 – Layout of class attribute selection tables . 10
Table 8 – Contents of class attribute selection tables . 10
Table 9 – Relations of Communication Profile Families to Type numbers . 13

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IEC 61784-1-0:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL NETWORKS –
PROFILES –

Part 1-0: Fieldbus profiles –
General concepts and terminology

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
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Attention is drawn to the fact that the use of some of the associated protocol types is restricted
by their intellectual-property-right holders. In all cases, the commitment to limited release of
intellectual-property-rights made by the holders of those rights permits a layer protocol type to
be used with other layer protocols of the same type, or in other type combinations explicitly
authorized by their respective intellectual property right holders.
NOTE Combinations of protocol types are specified in the IEC 61784-1 series and the IEC 61784-2 series.
IEC 61784-1-0 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 first edition, together with the other parts of the same series, cancels and replaces the fifth
edition of IEC 61784-1 published in 2019. This first edition constitutes a technical revision.

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– 4 – IEC 61784-1-0:2023 © IEC 2023
This edition includes the following significant technical changes with respect to
IEC 61784-1:2019:
a) split of the original IEC 61784-1 into several subparts, one subpart for the material of a
generic nature, and one subpart for each Communication Profile Family specified in the
original document;
b) move most contents of the original scope into a new dedicated subclause;
c) addition of a new Communication Profile Family (CPF 22).
The text of this International Standard is based on the following documents:
Draft Report on voting
65C/1207/FDIS 65C/1236/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 the IEC 61784-1 series, published under the general title Industrial networks
– Profiles – Part 1: Fieldbus profiles, 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,
• replaced by a revised edition, or
• amended.

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IEC 61784-1-0:2023 © IEC 2023 – 5 –
INTRODUCTION
The IEC 61784-1 series provides a set of Communication Profiles (CP) in the sense of
ISO/IEC TR 10000-1. These answer the need of identifying the protocol families co-existing
within the IEC 61158 series, as a result of the international harmonization of fieldbus
technologies available on the market. More specifically, these profiles help to correctly state
the compliance with the IEC 61158 series, and to avoid the spreading of divergent
implementations, which would limit its use, clearness and understanding. Additional profiles to
address specific market concerns, such as functional safety or information security, can be
addressed by future parts of the IEC 61784-1 series.
The IEC 61784-1 series contains several Communication Profile Families (CPF), which specify
one or more communication profiles. Such profiles identify, in a strict sense, protocol subsets
of the IEC 61158 series via protocol specific communication profiles. They do not define device
profiles that specify communication profiles together with application functions needed to
answer the need of a specific application ("application profiles").
It is agreed that these latter classes of profiles would facilitate the use of the IEC 61158 series
of standards; the profiles defined in the IEC 61784-1 series are a necessary step to achieve
that task.
It is also important to clarify that interoperability – defined as the ability of two or more network
systems to exchange information and to make mutual use of the information that has been
exchanged (see ISO/IEC TR 10000-1) – can be directly achieved on the same link only for those
devices complying with the same communication profile.
Profiles contained in the IEC 61784-1 series are constructed of references to IEC 61158-2 and
the IEC 61158-3, IEC 61158-4, IEC 61158-5 and IEC 61158-6 series, and other IS, TS or
1
worldwide-accepted standards, as appropriate . Each profile is required to reference at least
one part of the IEC 61158 series in addition to IEC 61158-1.
Two or more Profiles, which are related to a common family, are specified within a
"Communication Profile Family" (CPF).

___________
1
 International Standardised Profiles may contain normative references to specifications other than International
Standards; see ISO/IEC JTC 1 N 4047: The Normative Referencing of Specifications other than International
Standards in JTC 1 International Standardized Profiles – Guidelines for ISP Submitters.

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– 6 – IEC 61784-1-0:2023 © IEC 2023
INDUSTRIAL NETWORKS –
PROFILES –

Part 1-0: Fieldbus profiles –
General concepts and terminology



1 Scope
The IEC 61784-1 series defines several Communication Profile Families (CPF). Each CPF
specifies a set of protocol specific communication profiles (CPs) based primarily on the
IEC 61158 series, to be used in the design of devices involved in communications in factory
manufacturing and process control.
This part of IEC 61784-1 defines a common terminology for all CPFs and conventions to be
used in the specification of the CPs. It also provides a compliance statement and an overview
of the structure and contents of the CPFs in the IEC 61784-1 series.
NOTE The added value of the IEC 61784-1 series is explained in Annex A.
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.
NOTE All parts of the IEC 61158 series, as well as the IEC 61784-1 series and the IEC 61784-2 series are
maintained simultaneously. Cross-references to these documents within the text therefore refer to the editions as
dated in this list of normative references.
IEC 61158 (all parts), Industrial communication networks – Fieldbus specifications
IEC 61784-1 (all parts), Industrial networks – Profiles – Part 1: Fieldbus profiles
IEC 61784-1-1:2023, Industrial networks – Profiles – Part 1-1: Fieldbus profiles –
Communication Profile Family 1
IEC 61784-1-2:2023, Industrial networks – Profiles – Part 1-2: Fieldbus profiles –
Communication Profile Family 2
IEC 61784-1-3:2023, Industrial networks – Profiles – Part 1-3: Fieldbus profiles –
Communication Profile Family 3
IEC 61784-1-4:2023, Industrial networks – Profiles – Part 1-4: Fieldbus profiles –
Communication Profile Family 4
IEC 61784-1-5:2023, Industrial networks – Profiles – Part 1-5: Fieldbus profiles –
Communication Profile Family 5
IEC 61784-1-6:2023, Industrial networks – Profiles – Part 1-6: Fieldbus profiles –
Communication Profile Family 6

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IEC 61784-1-0:2023 © IEC 2023 – 7 –
IEC 61784-1-8:2023, Industrial networks – Profiles – Part 1-8: Fieldbus profiles –
Communication Profile Family 8
IEC 61784-1-9:2023, Industrial networks – Profiles – Part 1-9: Fieldbus profiles –
Communication Profile Family 9
IEC 61784-1-16:2023, Industrial networks – Profiles – Part 1-16: Fieldbus profiles –
Communication Profile Family 16
IEC 61784-1-19:2023, Industrial networks – Profiles – Part 1-19: Fieldbus profiles –
Communication Profile Family 19
IEC 61784-1-22:2023, Industrial networks – Profiles – Part 1-22: Fieldbus profiles –
Communication Profile Family 22
3 Terms, definitions, abbreviated terms, symbols, and conventions
3.1 Terms and definitions
For the purposes of this document, all terms and definitions provided in the IEC 61158 series
apply.
ISO and IEC maintain terminological 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
3.2 Abbreviations and symbols
3.2.1 IEC 61158 abbreviations and symbols
For the purposes of this document, all abbreviations and symbols defined in the IEC 61158
series apply. The following abbreviations, found within the IEC 61158 series, are repeated here
for use by those who wish to understand the general structure of the IEC 61784-1 series without
referring to the IEC 61158 series.
AL Application layer
APDU Application protocol data unit
AR Application relationship
ASE Application service element
DL- Data-link layer (as a prefix)
DLL Data-link layer
DLSDU Data-link service data unit
PhL Physical layer
TPDU Transport protocol data unit
3.2.2 Other abbreviations and symbols
CP communication profile
CPF communication profile family
MAU medium attachment unit

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3.3 Conventions
3.3.1 Conventions common to all layers
3.3.1.1 (Sub)clause selection tables
(Sub)clause selection for all layers is defined in tables, as shown in Table 1 and Table 2. The
selected base specifications are indicated just before the selection table(s). Selection is done
at the highest (sub)clause level possible to define the profile selection unambiguously.
Table 1 – Layout of profile (sub)clause selection tables
Clause Header Presence Constraints


Table 2 – Contents of (sub)clause selection tables
Column Text Meaning
Clause <#> (Sub)clause number of the base specifications
Next subclauses Any following subclauses of the same level up to the last subclause
Next clauses Any following clauses up to the last clause of the base specification
Next annexes Any following annexes up to the last annex of the base specification
Header (Sub)clause title of the base specifications
Presence NO This (sub)clause is not included in the profile
YES This (sub)clause is fully (100 %) included in the profile
In this case no further detail is given
— Presence is defined in the following subclauses
Partial Parts of this (sub)clause are included in the profile
Constraints See <#> Constraints/remarks are defined in the given subclause, table or figure of this
profile document
— No constraints other than given in the reference document (sub)clause,
or not applicable
The text defines the constraint directly; for longer text, table footnotes or table
notes may be used

If sequences of (sub)clauses do not match the profile, then the numbers are concatenated.
EXAMPLE 1 Concatenated subclauses
3.4 – 3.7 — NO —

EXAMPLE 2 Concatenated clauses up to the last clause
Next clauses — NO —

EXAMPLE 3 Concatenated annexes up to the last annex
Next annexes — NO —

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IEC 61784-1-0:2023 © IEC 2023 – 9 –
3.3.1.2 Service selection tables
If selection of services is defined in a table, the format of Table 3 is used. The table identifies
the selected services and includes service constraints, as explained in Table 4.
Table 3 – Layout of service selection tables
Service ref. Service name Usage Constraint


Table 4 – Contents of service selection tables
Column Text Meaning
Service ref. <#> (Sub)clause number of the base specifications where the service is defined
— Not applicable
Service name The name of the service
Usage M Mandatory
O Optional
— Service is never used
Constraints See <#> Constraints/remarks are defined in the given subclause, table or figure of this
profile document
— No constraints other than given in the reference document (sub)clause, or not
applicable
The text defines the constraint directly, for longer text, table footnotes or table
notes may be used

If selection of service parameters is defined in a table, the format of Table 5 is used. Each table
identifies the selected parameters and includes parameter constraints, as explained in Table 6.
Table 5 – Layout of parameter selection tables
Parameter ref. Parameter name Usage Constraint


Table 6 – Contents of parameter selection tables
Column Text Meaning
Parameter ref. <#> (Sub)clause number of the base specifications where the service is defined
— Not applicable
Parameter name The name of the service parameter
Usage M Mandatory
O Optional
— Attribute is never present
Constraints See <#> Constraints/remarks are defined in the given subclause, table or figure of this
profile document
— No constraints other than given in the reference document (sub)clause,
or not applicable
The text defines the constraint directly; for longer text, table footnotes or table
notes may be used

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– 10 – IEC 61784-1-0:2023 © IEC 2023
3.3.2 Physical layer
No additional conventions are defined.
3.3.3 Data-link layer
3.3.3.1 Service profile conventions
No additional conventions are defined.
3.3.3.2 Service and parameter selections
These are described using the common conventions, see 3.3.1.2.
3.3.4 Application layer
3.3.4.1 Service profile conventions
ASE and class selection is described using (sub)clause selection tables, see 3.3.1.1. If the
usage of selected ASE and classes is further constrained, this is specified in the profile (e.g.
an optional item of the base standard is mandatory in the profile).
If selection of class attributes is defined in a table, the format of Table 7 is used. The table
identifies the selected class attributes and includes their constraints, as explained in Table 8.
Table 7 – Layout of class attribute selection tables
Attribute Attribute Name Usage Constraint


Table 8 – Contents of class attribute selection tables
Column Text Meaning
Attribute <#> Attribute number of the base specification class
— Not applicable
Attribute Name The name of the attribute
Usage M Mandatory
O Optional
— Attribute is never present
Constraints See <#> Constraints/remarks are defined in the given subclause, table or figure of this
profile document
— No constraints other than given in the reference document (sub)clause,
or not applicable
The text defines the constraint directly; for longer text, table footnotes or table
notes may be used

3.3.4.2 Service and parameter selections
These are described using the common conventions, see 3.3.1.2.

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IEC 61784-1-0:2023 © IEC 2023 – 11 –
4 Conformance to communication profiles
Each communication profile within the IEC 61784-1 series includes part of the IEC 61158
series. It may also include parts of other standards or international specifications.
A statement of compliance with a Communication Profile Family n (CPF n) of the IEC 61784-1
2
series shall be stated as either
3
Compliance with IEC 61784-1-n:2023
or
Compliance with IEC 61784-1-n (Ed.1.0)
and a statement of compliance with a Communication Profile (CP) of the IEC 61784-1 series
shall be stated as either
3
Compliance with IEC 61784-1-n:2023 CP n/m
or
Compliance with IEC 61784-1-n (Ed.1.0) CP n/m
where the Type within the angle brackets < > is optional and the angle brackets are not to be
included.
Product standards shall not include any conformity assessment aspects (including QM
provisions), neither normative nor informative, other than provisions for product testing
(evaluation and examination).
5 Communication profiles and communication profile families
Each CP selects specifications for the communications protocol stack at a device. It contains a
minimal set of required services at the application layer and specification of options in
intermediate layers defined through references. If no application layer is included, then a
minimal set of required services at the Data-link layer is specified. The appropriate references
to the protocol specific types are given in each communication profile family or associated
profiles.
NOTE All CPs are based on standards or draft standards or International Standards published by the IEC or from
standards or International Standards established by other standards bodies or open standards processes.
The structure of CPFs is specified in Figure 1.
___________
2
 In accordance with ISO/IEC Directives
3
 The date should not be used
...