IEC 61784-2-18:2023

Industrial networks - Profiles - Part 2-18: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 - CPF 18

IEC 61784-2-18:2023 defines Communication Profile Family 18 (CPF 18). CPF 18 specifies a set of Real-Time Ethernet (RTE) communication profiles (CPs) and related network components based on the IEC 61158 series (Type 22), ISO/IEC/IEEE 8802-3 and other standards.
For each RTE communication profile, this document also specifies the relevant RTE performance indicators and the dependencies between these RTE performance indicators.
NOTE 1 All CPs are based on standards or draft standards or International Standards published by the IEC or on standards or International Standards established by other standards bodies or open standards processes.
NOTE 2 The RTE communication profile(s) use ISO/IEC/IEEE 8802-3 communication networks and its related network components or IEC 61588 and in some cases amend those standards to obtain RTE features.

Réseaux industriels – Profils – Partie 2-18: Profils de bus de terrain supplémentaires pour les réseaux en temps réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 18

L’IEC 61784-2-18:2023 définit la famille de profils de communication 18 (CPF 18). La CPF 18 spécifie un ensemble de profils de communication (CP) Ethernet en temps réel (RTE, Real-Time Ethernet) et de composants de réseau associés basés sur la série IEC 61158 (type 22), l’ISO/IEC/IEEE 8802-3 et d’autres normes.
Pour chaque profil de communication RTE, le présent document spécifie également les indicateurs de performance RTE correspondants et les dépendances entre ces indicateurs de performance RTE.
NOTE 1 Tous les CP sont fondés sur des normes ou projets de normes, ou des Normes internationales, publiés par l’IEC, ou bien sur des normes ou des Normes internationales établies par d’autres organismes de normalisation ou des processus de normalisation ouverts.
NOTE 2 Le ou les profils de communication RTE utilisent les réseaux de communication ISO/IEC/IEEE 8802-3 et leurs composants de réseau connexes, ou l’IEC 61588, et amendent dans certains cas ces normes, pour obtenir les fonctions RTE.

General Information

• Status: Withdrawn
• Publication Date: 04-May-2023
• Withdrawal Date: 14-May-2023
• ICS: 35.100.20 - Data link layer
• ICS: 35.240.50 - IT applications in industry
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 9 - TC 65/SC 65C/WG 9
• Current Stage: WPUB - Publication withdrawn
• Start Date: 15-May-2023
• Completion Date: 15-May-2023

Relations

• Replaces: IEC 61784-2:2019 - Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC/IEEE 8802-3
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61784-2-18


®


Edition 1.0 2023-05



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Industrial networks – Profiles –
Part 2-18: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –
CPF 18

Réseaux industriels – Profils –
Partie 2-18: Profils de bus de terrain supplémentaires pour les réseaux en temps
réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 18


IEC 61784-2-18:2023-05(en-fr)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED


Copyright © 2023 IEC, Geneva, Switzerland


All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.



Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et

les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des

questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland

About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: [e-mail].


A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Découvrez notre puissant moteur de recherche et consultez

webstore.iec.ch/advsearchform gratuitement tous les aperçus des publications. Avec un
La recherche avancée permet de trouver des publications IEC abonnement, vous aurez toujours accès à un contenu à jour
en utilisant différents critères (numéro de référence, texte, adapté à vos besoins.
comité d’études, …). Elle donne aussi des informations sur les
projets et les publications remplacées ou retirées. Electropedia - www.electropedia.org

Le premier dictionnaire d'électrotechnologie en ligne au monde,
IEC Just Published - webstore.iec.ch/justpublished
avec plus de 22 300 articles terminologiques en anglais et en
Restez informé sur les nouvelles publications IEC. Just
français, ainsi que les termes équivalents dans 19 langues
Published détaille les nouvelles publications parues.
additionnelles. Egalement appelé Vocabulaire
Disponible en ligne et une fois par mois par email.
Electrotechnique International (IEV) en ligne.


Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC Products & Services Portal - products.iec.ch

---------------------- Page: 2 ----------------------
IEC 61784-2-18



®



Edition 1.0 2023-05







INTERNATIONAL





STANDARD







NORME


INTERNATIONALE











Industrial networks – Profiles –

Part 2-18: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –

CPF 18



Réseaux industriels – Profils –

Partie 2-18: Profils de bus de terrain supplémentaires pour les réseaux en


temps réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 18














INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6907-7




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

---------------------- Page: 3 ----------------------
– 2 – IEC 61784-2-18:2023 © IEC 2023


CONTENTS


FOREWORD . 3

INTRODUCTION . 5


1 Scope . 6

2 Normative references . 6

3 Terms, definitions, abbreviated terms, acronyms, and conventions . 7

3.1 Terms and definitions . 7

3.2 Abbreviated terms and acronyms . 8

3.3 Symbols . 8
3.4 Conventions . 8
4 CPF 18 (SafetyNET p) – RTE communication profiles . 9
4.1 General overview . 9
4.2 CP 18/1 . 9
4.2.1 Physical layer . 9
4.2.2 Data link layer . 9
4.2.3 Application layer . 12
4.2.4 Performance indicator selection . 14
4.3 CP 18/2 . 17
4.3.1 Physical layer . 17
4.3.2 Data link layer . 17
4.3.3 Application layer . 20
4.3.4 Performance indicator selection . 21
Bibliography . 24

Table 1 – CPF 18 symbols . 8
Table 2 – CP 18/1: DLL service selection . 9
Table 3 – CP 18/1: DLL protocol selection . 11
Table 4 – CP 18/1: AL service selection . 13
Table 5 – CP 18/1: AL protocol selection . 14
Table 6 – CP 18/1: PI overview . 14
Table 7 – CP 18/1: PI dependency matrix . 15
Table 8 – CP 18/2: DLL service selection . 17

Table 9 – CP 18/2: DLL protocol selection . 18
Table 10 – CP 18/2: AL service selection . 20
Table 11 – CP 18/2: AL protocol selection . 21
Table 12 – CP 18/2: PI overview . 22
Table 13 – CP 18/2: PI dependency matrix . 22

---------------------- Page: 4 ----------------------
IEC 61784-2-18:2023 © IEC 2023 – 3 –


INTERNATIONAL ELECTROTECHNICAL COMMISSION


____________




INDUSTRIAL NETWORKS –

PROFILES –




Part 2-18: Additional real-time fieldbus profiles

based on ISO/IEC/IEEE 8802-3 –

CPF 18

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 61784-2-18 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
fourth edition of IEC 61784-2 published in 2019. This first edition constitutes a technical revision.

---------------------- Page: 5 ----------------------
– 4 – IEC 61784-2-18:2023 © IEC 2023


This edition includes the following significant technical changes with respect to

IEC 61784-2:2019:


a) split of the original IEC 61784-2 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.

The text of this International Standard is based on the following documents:


Draft Report on voting

65C/1209/FDIS 65C/1237/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 61784-2 series, published under the general title
Industrial networks – Profiles – Part 2: Additional real-time fieldbus profiles based on
ISO/IEC/IEEE 8802-3, 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.

---------------------- Page: 6 ----------------------
IEC 61784-2-18:2023 © IEC 2023 – 5 –


INTRODUCTION


The IEC 61784-2 series provides additional Communication Profiles (CP) to the existing

Communication Profile Families (CPF) of the IEC 61784-1 series and additional CPFs with one

or more CPs. These profiles meet the industrial automation market objective of identifying Real-

Time Ethernet (RTE) communication networks coexisting with ISO/IEC/IEEE 8802-3 –

commonly known as Ethernet. These RTE communication networks use provisions of

ISO/IEC/IEEE 8802-3 for the lower communication stack layers and additionally provide more

predictable and reliable real-time data transfer and means for support of precise

synchronization of automation equipment.


More specifically, these profiles help to correctly state the compliance of RTE communication
networks with ISO/IEC/IEEE 8802-3, and to avoid the spreading of divergent implementations.
Adoption of Ethernet technology for industrial communication between controllers and even for
communication with field devices promotes the use of Internet technologies in the field area.
This availability would be unacceptable if it causes the loss of features required in the field area
for industrial communication automation networks, such as:
• real-time,
• synchronized actions between field devices like drives,
• efficient, frequent exchange of very small data records.
These new RTE profiles can take advantage of the improvements of Ethernet networks in terms
of transmission bandwidth and network span.
Another implicit but essential requirement is that the typical Ethernet communication
capabilities, as used in the office world, are fully retained, so that the software involved remains
applicable.
The market is in need of several network solutions, each with different performance
characteristics and functional capabilities, matching the diverse application requirements. RTE
performance indicators, whose values will be provided with RTE devices based on
communication profiles specified in the IEC 61784-2 series, enable the user to match network
devices with application-dependent performance requirements of an RTE network.

---------------------- Page: 7 ----------------------
– 6 – IEC 61784-2-18:2023 © IEC 2023


INDUSTRIAL NETWORKS –

PROFILES –



Part 2-18: Additional real-time fieldbus profiles

based on ISO/IEC/IEEE 8802-3 –

CPF 18








1 Scope
This part of IEC 61784-2 defines Communication Profile Family 18 (CPF 18). CPF 18 specifies
a set of Real-Time Ethernet (RTE) communication profiles (CPs) and related network
components based on the IEC 61158 series (Type 22), ISO/IEC/IEEE 8802-3 and other
standards.
For each RTE communication profile, this document also specifies the relevant RTE
performance indicators and the dependencies between these RTE performance indicators.
NOTE 1 All CPs are based on standards or draft standards or International Standards published by the IEC or on
standards or International Standards established by other standards bodies or open standards processes.
NOTE 2 The RTE communication profile(s) use ISO/IEC/IEEE 8802-3 communication networks and its related
network components or IEC 61588 and in some cases amend those standards to obtain RTE features.
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 61158-3-22:2014, Industrial communication networks – Fieldbus specifications – Part 3-22:
Data-link layer service definition – Type 22 elements

IEC 61158-4-22:2014, Industrial communication networks – Fieldbus specifications – Part 4-22:
Data-link layer protocol specification – Type 22 elements
IEC 61158-5-22:2014, Industrial communication networks – Fieldbus specifications – Part 5-22:
Application layer service definition – Type 22 elements
IEC 61158-6-22:2014, Industrial communication networks – Fieldbus specifications – Part 6-22:
Application layer protocol specification – Type 22 elements
IEC 61588, Precision clock synchronization protocol for networked measurement and control
systems
IEC 61784-2-0:2023, Industrial networks – Profiles – Part 2-0: Additional real-time fieldbus
profiles based on ISO/IEC/IEEE 8802-3 – General concepts and terminology

---------------------- Page: 8 ----------------------
IEC 61784-2-18:2023 © IEC 2023 – 7 –


ISO/IEC/IEEE 8802-3, Telecommunications and exchange between information technology

systems – Requirements for local and metropolitan area networks – Part 3: Standard for

Ethernet


IEEE Std 802-2014, IEEE Standard for Local and Metropolitan Area Networks: Overview and

Architecture


IEEE Std 802.1AB-2016, IEEE Standard for Local and metropolitan area networks – Station and

Media Access Control Connectivity Discovery


IEEE Std 802.1AS-2020, IEEE Standard for Local and Metropolitan Area Networks – Timing

and Synchronization for Time-Sensitive Applications
IEEE Std 802.1Q-2018, IEEE Standard for Local and Metropolitan Area Networks – Bridges and
Bridged Networks
IETF RFC 768, J. Postel, User Datagram Protocol, August 1980, available at
https://www.rfc-editor.org/info/rfc768 [viewed 2022-02-18]
IETF RFC 791, J. Postel, Internet Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc791 [viewed 2022-02-18]
IETF RFC 792, J. Postel, Internet Control Message Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc792 [viewed 2022-02-18]
IETF RFC 793, J. Postel, Transmission Control Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc793 [viewed 2022-02-18]
3 Terms, definitions, abbreviated terms, acronyms, and conventions
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61784-2-0,
ISO/IEC/IEEE 8802-3, IEEE Std 802-2014, IEEE Std 802.1AB-2016, IEEE Std 802.1AS-2020,
IEEE Std 802.1Q-2018 and the following 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
3.1.1
logical double line
sequence of root device and all ordinary devices processing the DLPDU in forward and
backward direction
3.1.2
real time frame line
RTFL
communication model with devices communicating in a logical double line
3.1.3
real time frame network
RTFN
communication model with devices communicating in a switched network

---------------------- Page: 9 ----------------------
– 8 – IEC 61784-2-18:2023 © IEC 2023


3.2 Abbreviated terms and acronyms


For the purposes of this document, abbreviated terms and acronyms defined in IEC 61784-2-0

and the following apply.

CP Communication Profile [according to IEC 61784-1-0]

CPF Communication Profile Family [according to IEC 61784-1-0]

ICMP Internet Control Message Protocol (see IETF RFC 792)

IETF Internet Engineering Task Force


IP Internet Protocol (see IETF RFC 791)

LLDP Link Layer Discovery Protocol (see IEEE Std 802.1AB-2016)
NoS Number of Switches
PI Performance indicator
PTP Precision Time Protocol (see IEC 61588)
RSTP Rapid Spanning Tree Algorithm and Protocol (see IEEE Std 802.1Q-2018)
RTFL Real time frame line
RTFN Real time frame network
TCP Transmission Control Protocol (see IETF RFC 793)
UDP User Datagram Protocol (see IETF RFC 768)
3.3 Symbols
For the purposes of this document, symbols defined in IEC 61784-2-0 and Table 1 apply.
NOTE Definitions of symbols in this Subclause 3.3 do not use the italic font, as they are already identified as
symbols.
Table 1 – CPF 18 symbols
Symbol Definition Unit
l Distance along the cable in backward direction m
B
l Cable length m
C
l Distance along the cable in forward direction m
F
NoDoB Number of devices in backward direction –
NoDoF Number of devices in forward direction –
NoS Number of switching devices –

t Cable delay ns/m
CD
t Cycle time of communication system/relation µs
cyc
t Delivery time µs
D
t Transmit time of DLPDUs µs
data
t Propagation delay µs
pd
t Sink stack traversal time µs
STsink
t Source stack traversal time µs
STsrc
t Delay time of a switch µs
SW

3.4 Conventions
For the purposes of this document, the conventions defined in IEC 61784-2-0 apply.

---------------------- Page: 10 ----------------------
IEC 61784-2-18:2023 © IEC 2023 – 9 –


1
4 CPF 18 (SafetyNET p ) – RTE communication profiles


4.1 General overview


Communication Profile Family 18 defines profiles based on IEC 61158-3-22, IEC 61158-4-22,

IEC 61158-5-22 and IEC 61158-6-22.


In this document, the following communication profiles are specified for CPF 18.


– Profile 18/1

This profile defines protocol and service selection for devices which utilize the

communication model real time frame line (RTFL).
– Profile 18/2
This profile defines protocol and service selection for devices which utilize the
communication model real time frame network (RTFN).
4.2 CP 18/1
4.2.1 Physical layer
The physical layer shall be based on standard Ethernet hardware according to
ISO/IEC/IEEE 8802-3.
CP 18/1 devices shall use a data rate of 100 Mbit/s and full-duplex transmission mode.
A combination of full-duplex and 100Base-TX with auto crossover function (wire, 2 twisted pairs)
should be used.
When using cables, they shall be rated Cat5e or better, and shielded in an appropriate way
(FTP, STP or SFTP) depending upon EMC constraints.
4.2.2 Data link layer
Data link layer is described in IEC 61158-3-22 and IEC 61158-4-22. Table 2 specifies the use
of the services included in this profile. Table 3 specifies the use of the protocol included in this
profile.
Table 2 – CP 18/1: DLL service selection
Clause Header Presence Constraints
1 Scope YES —
2 Normative references YES —

3 Terms, definitions, abbreviations and Partial If applicable
conventions
4 Data-link layer services and concepts — —
4.1 Operating principle YES —
4.2 Communication models — —
4.2.1 Overview YES —
4.2.2 RTFL device reference model YES —
4.2.3 RTFN device reference model NO —
4.3 Topology — —
___________
1
SafetyNET p is a trade name of the Pilz GmbH & Co. KG. This information is given for the convenience of users
of this document and does not constitute an endorsement by IEC of the trade name holder or any of its products.
Compliance with this profile does not require use of the trade name SafetyNET p. Use of the trade name
SafetyNET p requires permission of the trade name holder.

---------------------- Page: 11 ----------------------
– 10 – IEC 61784-2-18:2023 © IEC 2023


Clause Header Presence Constraints

4.3.1 RTFL topology YES —

4.3.2 RTFN topology NO —

4.4 Addressing — —

4.4.1 Overview YES —

4.4.2 RTFL device addressing YES —


4.4.3 RTFN device addressing NO —

4.5 Gateway YES —

4.6 Interaction models — —

4.6.1 Overview YES —
4.6.2 Producer-consumer YES —
4.6.3 Publisher-subscriber NO —
4.7 Synchronization concept YES —
5 Communication services — —
5.1 Overview Partial Only services selected by this CP
5.2 Communication management services — —
5.2.1 Overview YES —
5.2.2 RTFL-network verification — —
5.2.2.1 DL-Network verification service (NV) YES —
5.2.2.2 DL-RTFN scan network read service NO —
(RTFNSNR)
5.2.3 Communication management — —
5.2.3.1 DL-RTFN connection establishment service NO —
(RTFNCE)
5.2.3.2 DL-RTFN connection release service NO —
(RTFNCR)
5.2.3.3 DL-RTFL control service (RTFLCTL) YES —
5.2.3.4 DL-RTFL configuration service (RTFLCFG) YES —
5.2.3.5 DL-Read configuration data service (RDCD) YES —
5.2.3.6 DL-RTFL configuration service 2 (RTFLCFG2) YES —
5.2.3.7 DL-Read configuration data service 2 (RDCD2) YES —
5.3 Cyclic data channel service (CDC) YES —
5.4 Message channel services (MSC) YES —
5.5 Time synchronization — —

5.5.1 DL-DelayMeasurement start service (DMS) YES —
5.5.2 DL-DelayMeasurement read service (DMR) YES —
5.5.3 DL-PCS configuration service (PCSC) YES —
5.5.4 DL-Sync master configuration service YES —
(SYNC_MC)
5.5.5 DL-Sync start service (SYNC_START) YES —
5.5.6 DL-Sync stop service (SYNC_STOP) YES —
5.6 Media independent interface (MII) YES —
management services

---------------------- Page: 12 ----------------------
IEC 61784-2-18:2023 © IEC 2023 –
...