SIST EN 61784-3-12:2010

Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12 (IEC 61784-3-12:2010)

This part of the IEC 61784-3 series specifies a safety communication layer (services and protocol) based on CPF 12 of IEC 61784-2 and IEC 61158 Type 12. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This part defines mechanisms for the transmission of safety-relevant messages among participants within a distributed network using fieldbus technology in accordance with the requirements of IEC 61508 series2 for functional safety. These mechanisms may be used in various industrial applications such as process control, manufacturing automation and machinery. This part provides guidelines for both developers and assessors of compliant devices and systems.

Industrielle Kommunikationsnetze - Profile - Teil 3-12: Funktional sichere Übertragung bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 12 (IEC 61784-3-12:2010)

Réseaux de communication industriels - Partie 3-12: Bus de terrain à sécurité fonctionnelle - Spécifications complémentaires pour le CPF 12 (CEI 61784-3-12:2010)

La CEI 61784-3-12:2010 spécifie une couche de communication relative à la sécurité (services et protocole) fondée sur la CPF 12 de la CEI 61784-2 et le type 12 de la CEI 61158. Elle identifie les principes applicables aux communications de sécurité fonctionnelle définies dans la CEI 61784-3, et appropriés à cette couche de communication de sécurité. La présente version bilingue (2012-02) correspond à la version anglaise monolingue publiée en 2010-06.

Industrijska komunikacijska omrežja - Profili - 3-12. del: Funkcijska varnost procesnih vodil - Dodatne specifikacije za CPF 12 (IEC 61784-3-12:2010)

Ta del serije IEC 61784-3 določa varnostno komunikacijsko plast (storitve in protokol) na osnovi CPF 12 IEC 61784-2 in IEC 61158 tipa 12. Določa načela za funkcijsko varnost komunikacij, opredeljena v IEC 61784-3, ki so pomembna za to varnostno komunikacijsko plast. Ta del opredeljuje mehanizme za prenos sporočil, pomembnih za varnost, med udeleženci znotraj porazdeljenega omrežja z uporabo tehnologije vodil v skladu z zahtevami IEC 61508 serije 2 za funkcijsko varnost. Ti mehanizmi se lahko uporabljajo v različnih industrijskih aplikacijah, kot je procesni nadzor, proizvodna avtomatizacija in stroji. Ta del zagotavlja smernice za razvijalce in ocenjevalce skladnih pripomočkov in sistemov.

General Information

• Status: Published
• Publication Date: 13-Sep-2010
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Aug-2010
• Due Date: 04-Nov-2010
• Completion Date: 14-Sep-2010
• Ref Project: EN 61784-3-12:2010 - Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12

Relations

• Amended By: SIST EN 61784-3-12:2010/A1:2020 - Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12 (IEC 61784-3-12:2010/A1:2019)
• Effective Date: 16-Apr-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61784-3-12:2010
01-oktober-2010
Industrijska komunikacijska omrežja - Profili - 3-12. del: Funkcijska varnost
procesnih vodil - Dodatne specifikacije za CPF 12 (IEC 61784-3-12:2010)
Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses -
Additional specifications for CPF 12 (IEC 61784-3-12:2010)
Industrielle Kommunikationsnetze - Profile - Teil 3-12: Funktional sichere Übertragung
bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 12 (IEC
61784-3-12:2010)
Réseaux de communication industriels - Partie 3-12: Bus de terrain à sécurité
fonctionnelle - Spécifications complémentaires pour le CPF 12 (CEI 61784-3-12:2010)
Ta slovenski standard je istoveten z: EN 61784-3-12:2010
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
SIST EN 61784-3-12:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61784-3-12:2010

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SIST EN 61784-3-12:2010

EUROPEAN STANDARD
EN 61784-3-12

NORME EUROPÉENNE
August 2010
EUROPÄISCHE NORM

ICS 25.040.40; 35.100.05


English version


Industrial communication networks -
Profiles -
Part 3-12: Functional safety fieldbuses -
Additional specifications for CPF 12
(IEC 61784-3-12:2010)


Réseaux de communication industriels -  Industrielle Kommunikationsnetze -
Partie 3-12: Bus de terrain à sécurité Profile -
fonctionnelle - Teil 3-12: Funktional sichere Übertragung
Spécifications complémentaires bei Feldbussen -
pour le CPF 12 Zusätzliche Festlegungen
(CEI 61784-3-12:2010) für die Kommunikationsprofilfamilie 12
(IEC 61784-3-12:2010)




This European Standard was approved by CENELEC on 2010-07-01. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61784-3-12:2010 E

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SIST EN 61784-3-12:2010
EN 61784-3-12:2010 - 2 -
Foreword
The text of document 65C/591A/FDIS, future edition 1 of IEC 61784-3-12, 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 was approved by CENELEC as EN 61784-3-12 on 2010-07-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61784-3-12:2010 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 61158 series NOTE  Harmonized in EN 61158 series (not modified).
IEC 61496 series NOTE  Harmonized in EN 61496 series (partially modified).
IEC 61508-1:2010 NOTE  Harmonized as EN 61508-1:2010 (not modified).
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 series NOTE  Harmonized in EN 61511 series (not modified).
IEC 61784-1 NOTE  Harmonized as EN 61784-1.
IEC 61784-5 series NOTE  Harmonized in EN 61784-5 series (not modified).
IEC 61800-5-2 NOTE  Harmonized as EN 61800-5-2.
IEC 62061 NOTE  Harmonized as EN 62061.
ISO 10218-1 NOTE  Harmonized as EN ISO 10218-1.
ISO 12100-1 NOTE  Harmonized as EN ISO 12100-1.
ISO 13849-1 NOTE  Harmonized as EN ISO 13849-1.
ISO 13849-2 NOTE  Harmonized as EN ISO 13849-2.
__________

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SIST EN 61784-3-12:2010
- 3 - EN 61784-3-12:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60204-1 - Safety of machinery - Electrical equipment EN 60204-1 -
of machines -
Part 1: General requirements


IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN 61000-6-2 -
Part 6-2: Generic standards - Immunity for
industrial environments


IEC 61131-2 - Programmable controllers - EN 61131-2 -
Part 2: Equipment requirements and tests


IEC 61158-2 - Industrial communication networks - EN 61158-2 -
Fieldbus specifications -
Part 2: Physical layer specification and service
definition


IEC 61158-3-12 - Industrial communication networks - EN 61158-3-12 -
Fieldbus specifications -
Part 3-12: Data-link layer service definition -
Type 12 elements


IEC 61158-4-12 - Industrial communication networks - EN 61158-4-12 -
Fieldbus specifications -
Part 4-12: Data-link layer protocol
specification - Type 12 elements


IEC 61158-5-12 - Industrial communication networks - EN 61158-5-12 -
Fieldbus specifications -
Part 5-12: Application layer service definition -
Type 12 elements


IEC 61158-6-12 - Industrial communication networks - EN 61158-6-12 -
Fieldbus specifications -
Part 6-12: Application layer protocol
specification - Type 12 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

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SIST EN 61784-3-12:2010
EN 61784-3-12:2010 - 4 -
Publication Year Title EN/HD Year

IEC 61326-3-2 - Electrical equipment for measurement, EN 61326-3-2 -
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


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 2010 Industrial communication networks - EN 61784-3 2010
Profiles -
Part 3: Functional safety fieldbuses - General
rules and profile definitions


IEC 61918 - Industrial communication networks - EN 61918 -
Installation of communication networks in
industrial premises

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SIST EN 61784-3-12:2010

IEC 61784-3-12
®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD

colour
inside

Industrial communication networks – Profiles –
Part 3-12: Functional safety fieldbuses – Additional specifications for CPF 12


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XD
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-981-4
® Registered trademark of the International Electrotechnical Commission

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SIST EN 61784-3-12:2010
– 2 – 61784-3-12 © IEC:2010(E)
CONTENTS
FOREWORD.6
0 Introduction .8
0.1 General .8
0.2 Patent declaration .10
1 Scope.11
2 Normative references .11
3 Terms, definitions, symbols, abbreviated terms and conventions .12
3.1 Terms and definitions .12
3.1.1 Common terms and definitions .12
3.1.2 CPF 12: 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 12: Additional symbols and abbreviated terms .18
3.3 Conventions .18
4 Overview of FSCP 12/1 (Safety-over-EtherCAT™) .18
5 General .20
5.1 External document providing specifications for the profile.20
5.2 Safety functional requirements .20
5.3 Safety measures .21
5.4 Safety communication layer structure .21
5.5 Relationships with FAL (and DLL, PhL) .22
5.5.1 General .22
5.5.2 Data types .22
6 Safety communication layer services .22
6.1 FSoE Connection .22
6.2 FSoE Cycle .22
6.3 FSoE services .23
7 Safety communication layer protocol .24
7.1 Safety PDU format .24
7.1.1 Safety PDU structure.24
7.1.2 Safety PDU command.25
7.1.3 Safety PDU CRC .25
7.2 FSCP 12/1 communication procedure.29
7.2.1 Message cycle.29
7.2.2 FSCP 12/1 node states.29
7.3 Reaction on communication errors .39
7.4 State table for FSoE Master .40
7.4.1 FSoE Master state machine.40
7.4.2 Reset state .44
7.4.3 Session state.45
7.4.4 Connection state .48
7.4.5 Parameter state.52
7.4.6 Data state.55
7.5 State table for FSoE Slave .58
7.5.1 FSoE Slave state machine.58
7.5.2 Reset state .62

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SIST EN 61784-3-12:2010
61784-3-12 © IEC:2010(E) – 3 –
7.5.3 Session state.64
7.5.4 Connection state .68
7.5.5 Parameter state.73
7.5.6 Data state.78
8 Safety communication layer management.81
8.1 FSCP 12/1 parameter handling.81
8.2 FSoE communication parameters .81
9 System requirements.82
9.1 Indicators and switches .82
9.1.1 Indicator states and flash rates.82
9.1.2 Indicators .83
9.2 Installation guidelines.84
9.3 Safety function response time .84
9.3.1 General .84
9.3.2 Determination of FSoE Watchdog time .85
9.3.3 Calculation of the worst case safety function response time .86
9.4 Duration of demands .87
9.5 Constraints for calculation of system characteristics.87
9.5.1 General .87
9.5.2 Probabilistic considerations .87
9.6 Maintenance.89
9.7 Safety manual .89
10 Assessment.89
Annex A (informative) Additional information for functional safety communication
profiles of CPF 12.90
A.1 Hash function calculation.90
A.2 … .94
Annex B (informative) Information for assessment of the functional safety
communication profiles of CPF 12.95
Bibliography.96

Table 1 – State machine description elements .18
Table 2 – Communication errors and detection measures .21
Table 3 – General Safety PDU .24
Table 4 – Shortest Safety PDU .25
Table 5 – Safety PDU command .25
Table 6 – CRC_0 calculation sequence.26
Table 7 – CRC_i calculation sequence (i>0) .26
Table 8 – Example for CRC_0 inheritance .27
Table 9 – Example for 4 octets of safety data with interchanging of octets 1-4 with 5-8.28
Table 10 – Safety Master PDU for 4 octets of safety data with command = Reset after
restart (reset connection) or error .31
Table 11 – Safety Slave PDU for 4 octets of safety data with command = Reset for
acknowledging a Reset command from the FSoE Master .31
Table 12 – Safety Slave PDU for 4 octets of safety data with command = Reset after
restart (reset connection) or error .32

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SIST EN 61784-3-12:2010
– 4 – 61784-3-12 © IEC:2010(E)
Table 13 – Safety Master PDU for 4 octets of safety data with command = Session.32
Table 14 – Safety Slave PDU for 4 octets of safety data with command = Session.33
Table 15 – Safety data transferred in the connection state.33
Table 16 – Safety Master PDU for 4 octets of safety data in Connection state .34
Table 17 – Safety Slave PDU for 4 octets of safety data in Connection state .34
Table 18 – Safety data transferred in the parameter state.35
Table 19 – First Safety Master PDU for 4 octets of safety data in parameter state .35
Table 20 – First Safety Slave PDU for 4 octets of safety data in parameter state .36
Table 21 – Second Safety Master PDU for 4 octets of safety data in parameter state .36
Table 22 – Second Safety Slave PDU for 4 octets of safety data in parameter state .37
Table 23 – Safety Master PDU for 4 octets of ProcessData in data state .37
Table 24 – Safety Slave PDU for 4 octets of ProcessData in data state .38
Table 25 – Safety Master PDU for 4 octets of fail-safe data in data state .38
Table 26 – Safety Slave PDU for 4 octets of fail-safe data in data state .39
Table 27 – FSoE communication error .39
Table 28 – FSoE communication error codes .40
Table 29 – States of the FSoE Master.40
Table 30 – Events in the FSoE Master state table.42
Table 31 – Functions in the FSoE Master state table .42
Table 32 – Variables in the FSoE Master state table.43
Table 33 – Macros in the FSoE Master state table .43
Table 34 – States of the FSoE Slave .58
Table 35 – Events in the FSoE Slave state table.60
Table 36 – Functions in the FSoE Slave state table .60
Table 37 – Variables in the FSoE Slave state table.61
Table 38 – Macros in the FSoE Slave state table .61
Table 39 – FSoE Communication parameters .82
Table 40 – Indicator States .82
Table 41 – FSoE STATUS indicator states.83
Table 42 – Definition of times .85

Figure 1 – Relationships of IEC 61784-3 with other standards (machinery) .8
Figure 2 – Relationships of IEC 61784-3 with other standards (process).9
Figure 3 – Basic FSCP 12/1 system.19
Figure 4 – FSCP 12/1 software architecture.21
Figure 5 – FSoE Cycle.23
Figure 6 – FSCP 12/1 communication structure .23
Figure 7 – Safety PDU for CPF 12 embedded in Type 12 PDU.24
Figure 8 – FSCP 12/1 node states .30
Figure 9 – State diagram for FSoE Master .41
Figure 10 – State diagram for FSoE Slave .59
Figure 11 – Indicator flash rates .83

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SIST EN 61784-3-12:2010
61784-3-12 © IEC:2010(E) – 5 –
Figure 12 – Components of a safety function .84
Figure 13 – Calculation of the FSoE Watchdog times for input and output connections .85
Figure 14 – Calculation of the worst case safety function response time .86
Figure 15 – Safety PDU embedded in standard PDU .88
Figure 16 – Residual error rate for 8/16/24 bit safety data and up to 12 144 bit
standard data.89

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SIST EN 61784-3-12:2010
– 6 – 61784-3-12 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –

Part 3-12: Functional safety fieldbuses –
Additional specifications for CPF 12


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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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
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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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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.
International Standard IEC 61784-3-12 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/591A/FDIS 65C/603/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 61784-3-12:2010
61784-3-12 © IEC:2010(E) – 7 –
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
...