SIST EN 61784-3-17:2018

SLOVENSKI STANDARD
SIST EN 61784-3-17:2018
01-februar-2018
Industrijska komunikacijska omrežja - Profili - 3-17. del: Funkcijska varnost
procesnih vodil - Dodatne specifikacije za CPF 17 (IEC 61784-3-17:2016)
Industrial communication networks - Profiles - Part 3-17: Functional safety fieldbuses -
Additional specifications for CPF 17 (IEC 61784-3-17:2016)
Industrielle Kommunikationsnetze - Profile - Teil 3-17: Funktional sichere Übertragung
bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 17 (IEC
61784-3-17:2016)
Réseaux de communication industriels - Profils - Partie 3-17: Bus de terrain de sécurité
fonctionnelle - Spécifications supplémentaires pour CPF 17 (IEC 61784-3-17:2016)
Ta slovenski standard je istoveten z: EN 61784-3-17:2017
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.01 Medsebojno povezovanje Open systems
odprtih sistemov na splošno interconnection in general
SIST EN 61784-3-17:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61784-3-17:2018

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SIST EN 61784-3-17:2018


EUROPEAN STANDARD EN 61784-3-17

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2017
ICS 25.040.40; 35.100.01

English Version
Industrial communication networks - Profiles - Part 3-17:
Functional safety fieldbuses - Additional specifications for CPF
17
(IEC 61784-3-17:2016)
Réseaux de communication industriels - Profils - Partie 3- Industrielle Kommunikationsnetze - Profile - Teil 3-17:
17: Bus de terrain de sécurité fonctionnelle - Spécifications Funktional sichere Übertragung bei Feldbussen -
supplémentaires pour CPF 17 Zusätzliche Festlegungen für die
(IEC 61784-3-17:2016) Kommunikationsprofilfamilie 17
(IEC 61784-3-17:2016)
This European Standard was approved by CENELEC on 2016-09-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61784-3-17:2017 E

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SIST EN 61784-3-17:2018
EN 61784-3-17:2017 (E)

European foreword
The text of document 65C/851/FDIS, future edition 1 of IEC 61784-3-17:2016, prepared by SC 65C
"Industrial networks", of IEC/TC 65 "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61784-3-17:2017.

The following dates are fixed:

• latest date by which this document has (dop) 2018-06-01
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-12-01
standards conflicting with this
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61784-3-17:2016 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60204-1 NOTE  Harmonized as EN 60204-1
IEC 61000-6-7:2014 NOTE  Harmonized as EN 61000-6-7:2015
IEC 61131-6 NOTE  Harmonized as EN 61131-6
IEC 61158-2 NOTE  Harmonized as EN 61158-2
IEC 61496 (all parts) NOTE  Harmonized as EN 61496 (all parts)
IEC 61508-2 NOTE  Harmonized as EN 61508-2.
IEC 61508-4:2010 NOTE  Harmonized as EN 61508-4:2010 (not modified).
IEC 61508-5:2010 NOTE  Harmonized as EN 61508-5:2010 (not modified).
IEC 61511 (all parts) NOTE  Harmonized as EN 61511 (all parts)
IEC 61784-5 (all parts) NOTE  Harmonized as EN 61784-5 (all parts)
IEC 61800-5-2 NOTE  Harmonized as EN 61800-5-2
IEC 62061 NOTE  Harmonized as EN 62061
IEC 62443 (all parts) NOTE  Harmonized as prEN 62443 (all parts)
IEC/TR 62685 NOTE  Harmonized as CLC/TR 62685
ISO 10218-1 NOTE  Harmonized as EN ISO 10218-1
ISO 12100 NOTE  Harmonized as EN ISO 12100
ISO 13849 (all parts) NOTE  Harmonized as EN ISO 13849 (all parts)
ISO 13849-1:2006 NOTE  Harmonized as EN ISO 13849-1:2006
ISO 13849-2 NOTE  Harmonized as EN ISO 13849-2
2

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SIST EN 61784-3-17:2018
EN 61784-3-17:2017 (E)

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 61000-6-2 -  Electromagnetic compatibility (EMC) - Part EN 61000-6-2 -
6-2: Generic standards - Immunity
standard for industrial environments
IEC 61131-2 -  Industrial-process measurement and EN 61131-2 -
control - Programmable controllers - Part
2: Equipment requirements and tests
IEC 61158-3-21 2010 Industrial communication networks - EN 61158-3-21 2012
Fieldbus specifications - Part 3-21: Data-
link layer service definition - Type 21
elements
IEC 61158-4-21 2010 Industrial communication networks - EN 61158-4-21 2012
Fieldbus specifications -- Part 4-21: Data-
link layer protocol specification - Type 21
elements
IEC 61158-5-21 2010 Industrial communication networks - EN 61158-5-21 2012
Fieldbus specifications -- Part 5-21:
Application layer service definition - Type
21 elements
IEC 61158-6-21 2010 Industrial communication networks - EN 61158-6-21 2012
Fieldbus specifications - Part 6-21:
Application layer protocol specification -
Type 21 elements
IEC 61326-3-1 -  Electrical equipment for measurement, EN 61326-3-1 -
control and laboratory use - EMC
requirements - Part 3-1: Immunity
requirements for safety-related systems
and for equipment intended to perform
safety-related functions (functional safety)
- General industrial applications
IEC 61326-3-2 -  Electrical equipment for measurement, - -
control and laboratory use - EMC
requirements - Part 3-2: Immunity
requirements for safety-related systems
and for equipment intended to perform
safety-related functions (functional safety)
- Industrial applications with specified
electromagnetic environment
IEC 61508 series Functional safety of EN 61508 series
electrical/electronic/programmable
electronic safety-related systems -- Part 1:
General requirements
IEC 61508-1 2010 Functional safety of EN 61508-1 2010
electrical/electronic/programmable
electronic safety-related systems -- Part 1:
General requirements
3

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SIST EN 61784-3-17:2018
EN 61784-3-17:2017 (E)
IEC 61784-2 -  Industrial communication networks - EN 61784-2 -
Profiles - Part 2: Additional fieldbus profiles
for real-time networks based on ISO/IEC
8802-3
IEC 61784-3 -  Industrial communication networks - EN 61784-3 -
Profiles - Part 3: Functional safety
fieldbuses - General rules and profile
definitions
IEC 61784-5-17 2013 Industrial communication networks - EN 61784-5-17 2013
Profiles -- Part 5-17: Installation of
fieldbuses - Installation profiles for CPF 17
IEC 61918 -  Industrial communication networks - EN 61918 -
Installation of communication networks in
industrial premises


4

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SIST EN 61784-3-17:2018




IEC 61784-3-17

®


Edition 1.0 2016-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Industrial communication networks – Profiles –

Part 3-17: Functional safety fieldbuses – Additional specifications for CPF 17




Réseaux de communication industriels – Profils –

Partie 3-17: Bus de terrain de sécurité fonctionnelle – Spécifications

supplémentaires pour CPF 17















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 25.040.40, 35.100.05 ISBN 978-2-8322-3493-8



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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SIST EN 61784-3-17:2018
– 2 – IEC 61784-3-17:2016  IEC 2016
CONTENTS
FOREWORD . 5
0 Introduction . 7
0.1 General . 7
0.2 Patent declaration . 9
1 Scope . 10
2 Normative references. 10
3 Terms, definitions, symbols, abbreviated terms, and conventions . 11
3.1 Terms and definitions . 11
3.1.1 Common terms and definitions . 11
3.1.2 CPF 17: Additional terms and definitions . 17
3.2 Symbols and abbreviated terms . 17
3.2.1 Common symbols and abbreviated terms . 17
3.2.2 CPF 17: Additional symbols and abbreviated terms . 18
3.3 Conventions . 18
4 Overview of FSCP 17/1 (RAPIEnet Safety™). 18
5 General . 20
5.1 External documents providing specifications for the profile . 20
5.2 Safety functional requirements . 20
5.3 Safety measures . 20
5.3.1 General . 20
5.3.2 (Virtual) sequence number . 21
5.3.3 Time expectation with watchdog . 21
5.3.4 Connection authentication . 21
5.3.5 Feedback message . 21
5.3.6 Data integrity assurance . 21
5.4 Safety communication layer structure . 22
5.4.1 Principle of FSCP 17/1 safety communications . 22
5.4.2 CPF 17 communication structures . 22
5.5 Relationships with FAL (and DLL, PhL) . 22
5.5.1 General . 22
5.5.2 Data types . 23
6 Safety communication layer services . 23
6.1 Overview. 23
6.2 Functional Safety connection . 23
6.2.1 General . 23
6.2.2 Initiator class specification . 23
6.2.3 Responder-class specification . 24
6.2.4 Sender class specification . 25
6.2.5 Receiver class specification . 27
6.3 Functional Safety data transmission service . 29
6.4 Functional Safety connection relation . 29
7 Safety communication layer protocol . 30
7.1 Safety PDU format . 30
7.1.1 General . 30
7.1.2 FSPDU command. 31

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SIST EN 61784-3-17:2018
IEC 61784-3-17:2016  IEC 2016 – 3 –
7.1.3 Authentication key . 31
7.1.4 FSPDU CRC . 31
7.2 FSCP 17/1 communication procedure . 34
7.2.1 FSCP 17/1 device states . 34
7.3 Response to communication errors . 42
7.3.1 General . 42
7.4 State table for SCL of CPF 17 . 42
7.4.1 General . 42
7.4.2 Events . 43
7.4.3 State table for Initiator . 44
7.4.4 State table for Responder. 53
8 Safety communication layer management . 62
8.1 FSCP 17/1 parameter handling . 62
8.2 Functional Safety communication parameters . 62
9 System requirements . 62
9.1 Indicators and switches . 62
9.2 Installation guidelines . 62
9.3 Safety function response time . 62
9.4 Duration of demands . 65
9.5 Constraints for calculation of system characteristics . 65
9.5.1 General . 65
9.5.2 Number of devices . 65
9.5.3 Probabilistic consideration . 65
9.6 Maintenance . 66
9.7 Safety manual . 66
10 Assessment . 66
Annex A (informative) Additional information for functional safety communication
profiles of CPF 17 . 67
A.1 Hash function calculation . 67
A.2 … . 68
Annex B (informative) Information for assessment of the functional safety
communication profiles of CPF 17 . 69
Bibliography . 70

Figure 1 – Relationships of IEC 61784-3 with other standards (machinery) . 7
Figure 2 – Relationships of IEC 61784-3 with other standards (process) . 8
Figure 3 – Communication relationships among FSCP 17 devices . 19
Figure 4 – Safety layer architecture . 22
Figure 5 – Functional Safety Cycle . 29
Figure 6 – Connection relationships among FSCP 17/1 devices . 30
Figure 7 – Functional Safety PDU for CPF 17 over type 21 PDU . 30
Figure 8 – FSPDU CRC code generation process . 32
Figure 9 – Example of sequence number changing . 33
Figure 10 – CRC comparison operation . 34
Figure 11 – FSCP 17/1 device states . 35
Figure 12 – State diagram for Functional Safety device . 43
Figure 13 – State diagram for Initiator . 44

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SIST EN 61784-3-17:2018
– 4 – IEC 61784-3-17:2016  IEC 2016
Figure 14 – State diagram for Responder . 53
Figure 15 – Safety function response time . 63
Figure 16 – Residual error rate of FSCP 17/1 . 66

Table 1 – Deployed measures to manage errors . 21
Table 2 – General FSPDU . 31
Table 3 – FSPDU command . 31
Table 4 – FSPDU with 4 octets of safety data and RESET command after restart (reset
connection) or error . 36
Table 5 – FSPDU with 4 octets of safety data and RESET command to acknowledge a
reset command from the Initiator . 36
Table 6 – Connection request PDU for the Initiator in CONNECTION state . 37
Table 7 – Connection response PDU for the Responder in CONNECTION state . 37
Table 8 – Safety data transferred in the SET_PARA state . 38
Table 9 – Sending FSPDU with 6 octets of safety data from the Initiator in SET_PARA
state . 38
Table 10 – Expected FSPDU with 6 octets of safety data from the Responder in
SET_PARA state . 39
Table 11 – Safety data from the Initiator in the WAIT_PARA state . 39
Table 12 – Sending FSPDU with 6 octets of safety data from the Initiator in the
WAIT_PARA state . 40
Table 13 – Receiving FSPDU with 6 octets of safety data from the Responder in the
WAIT_PARA state . 40
Table 14 – FSPDU of Safety data in the DATA state . 41
Table 15 – Example of 4 octets of safety data from a Sender . 41
Table 16 – Example of ACK PDU from the Receiver with 4 octets of safety data . 41
Table 17 – Functional Safety communication errors . 42
Table 18 – Functional Safety communication error codes . 42
Table 19 – States of the Functional Safety Initiator . 43
Table 20 – States of the Functional Safety Responder . 43
Table 21 – Events in the Functional Safety state . 44
Table 22 – Functional Safety communication parameters . 62
Table A.1 – the lookup table for FSCP 17/1 . 68

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SIST EN 61784-3-17:2018
IEC 61784-3-17:2016  IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –

Part 3-17: Functional safety fieldbuses –
Additional specifications for CPF 17

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,
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in the subject dealt with may participate in this preparatory work. International, governmental and non-
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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.
International Standard IEC 61784-3-17 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/851/FDIS 65C/854/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 61784-3-17:2018
– 6 – IEC 61784-3-17:2016  IEC 2016
A list of all parts of the IEC 61784-3 series, published under the general title Industrial
communication networks – Profiles – Functional safety fieldbuses, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.

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SIST EN 61784-3-17:2018
IEC 61784-3-17:2016  IEC 2016 – 7 –
0 Introduction
0.1 General
The IEC 61158 fieldbus standard together with its companion standards IEC 61784-1 and
IEC
...