SIST EN 61784-3-8:2010
(Main)Industrial communication networks - Profiles - Part 3-8: Functional safety fieldbuses - Additional specifications for CPF 8 (IEC 61784-3-8:2010)
Industrial communication networks - Profiles - Part 3-8: Functional safety fieldbuses - Additional specifications for CPF 8 (IEC 61784-3-8:2010)
This part of the IEC 61784-3 series specifies a safety communication layer (services and protocol) based on CPF 8 of IEC 61784-1 and IEC 61158 Type 18. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This part 1 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 3-8: Funktional sichere Übertragung bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 8 (IEC 61784-3-8:2010)
Réseaux de communication industriels - Profils - Partie 3-8: Bus de terrain de sécurité fonctionnelle - Spécification supplémentaire pour CPF 8 (CEI 61784-3-8:2010)
Industrijska komunikacijska omrežja - Profili - 3-8. del: Funkcijska varnost procesnih vodil - Dodatne specifikacije za CPF 8 (IEC 61784-3-8:2010)
Ta del serije IEC 61784-3 določa varnostno komunikacijsko plast (storitve in protokol) na osnovi CPF 8 IEC 61784-1 in IEC 61158 tipa 18. Določa načela za funkcijsko varnost komunikacij, opredeljena v IEC 61784-3, ki so pomembna za to varnostno komunikacijsko plast. Ta del 1 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
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61784-3-8:2010
01-oktober-2010
Industrijska komunikacijska omrežja - Profili - 3-8. del: Funkcijska varnost
procesnih vodil - Dodatne specifikacije za CPF 8 (IEC 61784-3-8:2010)
Industrial communication networks - Profiles - Part 3-8: Functional safety fieldbuses -
Additional specifications for CPF 8 (IEC 61784-3-8:2010)
Industrielle Kommunikationsnetze - Profile - Teil 3-8: Funktional sichere Übertragung bei
Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 8 (IEC 61784
-3-8:2010)
Réseaux de communication industriels - Profils - Partie 3-8: Bus de terrain de sécurité
fonctionnelle - Spécification supplémentaire pour CPF 8 (CEI 61784-3-8:2010)
Ta slovenski standard je istoveten z: EN 61784-3-8:2010
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
SIST EN 61784-3-8:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 61784-3-8:2010
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SIST EN 61784-3-8:2010
EUROPEAN STANDARD
EN 61784-3-8
NORME EUROPÉENNE
August 2010
EUROPÄISCHE NORM
ICS 25.040.40; 35.100.05
English version
Industrial communication networks -
Profiles -
Part 3-8: Functional safety fieldbuses -
Additional specifications for CPF 8
(IEC 61784-3-8:2010)
Réseaux de communication industriels - Industrielle Kommunikationsnetze -
Profils - Profile -
Partie 3-8: Bus de terrain de sécurité Teil 3-8: Funktional sichere Übertragung
fonctionnelle - bei Feldbussen -
Spécification supplémentaire pour CPF 8 Zusätzliche Festlegungen
(CEI 61784-3-8:2010) für die Kommunikationsprofilfamilie 8
(IEC 61784-3-8:2010)
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 61784-3-8:2010 E
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SIST EN 61784-3-8:2010
EN 61784-3-8:2010 - 2 -
Foreword
The text of document 65C/591A/FDIS, future edition 1 of IEC 61784-3-8, 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 61784-3-8 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 61784-3-8:2010 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 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 61784-2 NOTE Harmonized as EN 61784-2.
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 61918 NOTE Harmonized as EN 61918.
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 61784-3-8:2010
- 3 - EN 61784-3-8:2010
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 61131-2 - Programmable controllers - EN 61131-2 -
Part 2: Equipment requirements and tests
IEC 61158 Series Industrial communication networks - EN 61158 Series
Fieldbus specifications -
IEC 61158-2 - Industrial communication networks – EN 61158-2 -
Fieldbus specifications -
Part 2: Physical layer specification and service
definition
IEC 61158-3-18 - Industrial communication networks - Fieldbus EN 61158-3-18 -
specifications -
Part 3-18: Data-link layer service definition -
Type 18 elements
IEC 61158-4-18 - Industrial communication networks - Fieldbus EN 61158-4-18 -
specifications -
Part 4-18: Data-link layer protocol
specification - Type 18 elements
IEC 61158-5-18 - Industrial communication networks - Fieldbus EN 61158-5-18 -
specifications -
Part 5-18: Application layer service definition -
Type 18 elements
IEC 61158-6-18 - Industrial communication networks - Fieldbus EN 61158-6-18 -
specifications -
Part 6-18: Application layer protocol
specification - Type 18 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 61784-3-8:2010
EN 61784-3-8:2010 - 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 61511 Series Functional safety - Safety instrumented EN 61511 Series
systems for the process industry sector
IEC 61784-1 - Industrial communication networks - Profiles - EN 61784-1 -
Part 1: Fieldbus profiles
IEC 61784-3 2010 Industrial communication networks - Profiles - EN 61784-3 2010
Part 3: Functional safety fieldbuses - General
rules and profile definitions
IEC 62061 - Safety of machinery - Functional safety of EN 62061 -
safety-related electrical, electronic and
programmable electronic control systems
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SIST EN 61784-3-8:2010
IEC 61784-3-8
®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 3-8: Functional safety fieldbuses – Additional specifications for CPF 8
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-980-7
® Registered trademark of the International Electrotechnical Commission
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SIST EN 61784-3-8:2010
– 2 – 61784-3-8 © IEC:2010(E)
CONTENTS
FOREWORD.5
INTRODUCTION.7
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 8: Additional terms and definitions .16
3.2 Symbols and abbreviated terms.16
3.2.1 Common symbols and abbreviated terms .16
3.2.2 CPF 8: Additional symbols and abbreviated terms .17
3.3 Conventions .17
4 Overview of FSCP 8/1 (CC-Link Safety™) .17
5 General .18
5.1 External documents providing specifications for the profile.18
5.2 Safety functional requirements .18
5.3 Safety measures .18
5.3.1 General .18
5.3.2 Sequence number .19
5.3.3 Time expectation .19
5.3.4 Connection authentication .20
5.3.5 Feedback message .20
5.3.6 Different data integrity assurance system .20
5.4 Safety communication layer structure .20
5.5 Relationships with FAL (and DLL, PhL) .21
5.5.1 Overview .21
5.5.2 Data types .21
6 Safety communication layer services .21
6.1 General .21
6.2 SASEs.21
6.2.1 M1 safety device manager class specification.21
6.2.2 S1 safety device manager class specification .22
6.3 SARs.22
6.3.1 M1 safety connection manager class .22
6.3.2 S1 safety connection manager class.22
6.4 Process data SAR ASEs.23
6.4.1 M1 safety cyclic transmission class specification .23
6.4.2 S1 safety cyclic transmission class specification.23
7 Safety communication layer protocol .24
7.1 Safety PDU format .24
7.1.1 General .24
7.1.2 Abstract syntax.24
7.1.3 Transfer syntax.26
7.2 State description .30
7.2.1 Overview .30
7.2.2 Idle.31
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SIST EN 61784-3-8:2010
61784-3-8 © IEC:2010(E) – 3 –
7.2.3 FAL running.31
7.2.4 SCL running .32
7.2.5 Fail safe .32
7.2.6 Safety data transmission and processing.32
7.2.7 Forced termination .34
8 Safety communication layer management.34
8.1 General .34
8.2 Connection establishment and confirmation processing.35
8.3 Safety slave verification .35
8.3.1 General .35
8.3.2 Safety slave information verification process .35
8.3.3 Safety slave parameter transmission .35
9 System requirements.36
9.1 Indicators and switches .36
9.1.1 Switches.36
9.1.2 Indicators .36
9.2 Installation guidelines.37
9.3 Safety function response time .37
9.3.1 General .37
9.3.2 Time calculation .37
9.4 Duration of demands .39
9.5 Constraints for calculation of system characteristics.39
9.5.1 System characteristics.39
9.5.2 Residual error rate (Λ) .39
9.6 Maintenance.40
9.7 Safety manual .40
10 Assessment.41
Annex A (informative) Additional information for functional safety communication
profiles of CPF 8.42
A.1 Hash function calculation.42
A.2 … .42
Annex B (informative) Information for assessment of the functional safety
communication profiles of CPF 8 .43
Bibliography.44
Table 1 – Selection of the various measures for possible errors.19
Table 2 – M1 safety device manager attribute format .24
Table 3 – S1 safety device manager attribute format .24
Table 4 – M1 safety connection manager attribute format .24
Table 5 – S1 safety connection manager attribute format.25
Table 6 – M1 safety cyclic transmission attribute format .25
Table 7 – S1 safety cyclic transmission attribute format .26
Table 8 – M1 safety device manager attribute encoding.26
Table 9 – S1 safety device manager attribute encoding .27
Table 10 – M1 safety connection manager attribute encoding .27
Table 11 – S1 safety connection manager attribute encoding.27
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SIST EN 61784-3-8:2010
– 4 – 61784-3-8 © IEC:2010(E)
Table 12 – M1 safety cyclic transmission attribute encoding .28
Table 13 – S1 safety cyclic transmission attribute encoding.29
Table 14 – Safety master monitor timer operation .33
Table 15 – Safety slave monitor timer operation .33
Table 16 – Safety data monitor timer operation.33
Table 17 – Details of connection establishment and confirmation processing.35
Table 18 – Details of slave information verification processing.35
Table 19 – Details of safety slave parameter transmission processing .36
Table 20 – Monitor LEDs .36
Table 21 – Safety function response time calculation.38
Table 22 – Safety function response time definition of terms.38
Table 23 – Number of occupied slots and safety data .39
Table 24 – Residual error rate Λ (occupied slots = 1).40
Table 25 – Residual error rate Λ (occupied slots = 2).40
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 – Relationship between SCL and the other layers of IEC 61158 Type 18.21
Figure 4 – State diagram .31
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SIST EN 61784-3-8:2010
61784-3-8 © IEC:2010(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 3-8: Functional safety fieldbuses –
Additional specifications for CPF 8
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.
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members of its technical committees and IEC National Committees for any personal injury, property damage or
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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.
International Standard IEC 61784-3-8 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 61784-3-8:2010
– 6 – 61784-3-8 © IEC:2010(E)
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 61784-3-8:2010
61784-3-8 © IEC:2010(E) – 7 –
INTRODUCTION
The IEC 61158 fieldbus standard together with its companion standards IEC 61784-1 and
IEC 61784-2 defines a set of communication protocols that enable distributed control of
automation applications. Fieldbus technology is now considered well accepted and well
proven. Thus many fieldbus enhancements are emerging, addressing not yet standardized
areas such as real time, safety-related and security-related applications.
This standard explains the relevant principles for functional safety communications with
reference to IEC 61508 series and specifies several safety communication layers (profiles and
corresponding protocols) based on the communication profiles and protocol layers of
IEC 61784-1, IEC 61784-2 and the IEC 61158 series. It does not cover electrical safety and
intrinsic safety aspects.
Figure 1 shows the relationships between this standard and relevant safety and fieldbus
standards in a machinery environment.
Product standards
ISO 12100-1 and ISO 14121
ISO 12100-1 and ISO 14121
IEC 61496 IEC 61800-5-2 ISO 10218-1 Safety of machinery – Principles for
IEC 61496 IEC 61131-6 IEC 61800-5-2 ISO 10218-1 Safety of machinery – Principles for
IEC 61131-6
design and risk assessment
Safety f. e.g. Safety for PLC Safety functions Safety requirements
Safety f. e.g. Safety functions Safety requirements design and risk assessment
Safety for PLC
(under consideration)
light curtains for drives for robots
light curtains (under consideration) for drives for robots
Design of safety-related electrical, electronic and program-
IEC 61784-4 IEC 62443
IEC 61784-4 IEC 62443
mable electronic control systems (SRECS) for machinery
Security Security
Security Security
(profile-specific) (common part)
(profile-specific) (common part)
SIL based PL based
IEC 61784-5 IEC 61918
IEC 61784-5 IEC 61918
Installation guide Installation guide
Design objective
Installation guide Installation guide
(profile-specific) (common part)
(profile-specific) (common part)
Applicable standards
ISO 13849-1, -2
ISO 13849-1, -2
IEC 60204-1
IEC 60204-1
Safety-related parts
Safety-related parts
Safety of electrical
Safety of electrical
IEC 61000-1-2
IEC 61000-1-2 of machinery
of machinery
equipment
equipment
Methodology EMC & FS
Methodology EMC & FS (SRPCS)
(SRPCS)
IEC 61784-3 IEC 61326-3-1
IEC 61784-3 IEC 61326-3-1 Non-electrical
Non-electrical
Test EMC & FS
Functional safety
Functional safety Test EMC & FS
communication
communication Electrical
Electrical
US: NFPA 79
profiles US: NFPA 79
profiles
(2006)
(2006)
IEC 62061
IEC 62061
Functional safety
Functional safety
IEC 61158 series /
IEC 61158 series /
for machinery
for machinery
IEC 61784-1, -2 IEC 61508 series
(SRECS)
IEC 61784-1, -2 IEC 61508 series
(SRECS)
Functional safety (FS)
Fieldbus for use in (including EMC for
Functional safety (FS)
Fieldbus for use in (including EMC for
(basic standard)
industrial environment)
industrial control systems (basic standard)
industrial environment)
industrial control systems
Key
(yellow) safety-related standards
(blu
...
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