Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs) (IEC/TR 62685:2010)

This Technical Report provides information about the assessment aspects of safe communication such as test beds, proof of increased interference immunity (EMC for functional safety), electrical safety, and other environmental requirements. This document is only applicable to safety devices for functional safety communication which are developed according to IEC 61508 and IEC 61784-3. NOTE This document does not cover the more complex aspects of preserving existing devices and applications in the field and migration from safety rules before IEC 61508. The scope covers general industrial environments such as defined in IEC 61131-2 or IEC 61000-6-2 and process automation environments such as those covered in the IEC 61326 series. Reference is made to the ERS (Equipment Requirements Specification) and/or SRS (Safety Requirements Specification) of a particular safety application to verify the necessary immunity of devices and systems according to IEC 61508.

Industrielle Kommunikationsnetze - Profile - Beurteilungsleitfaden für Sicherheitsgeräte, die funktional sichere Übertragung nach den Profilen der IEC 61784-3 verwenden (IEC/TR 62685:2010)

Réseaux de communications industrielles - Profils - Recommandations d'évaluation pour les équipements de sécurité utilisant les profils de sécurité de communication (FSCP) de la CEI 61784-3 (CEI/TR 62685:2010)

La CEI/TR 62685:2010 fournit des informations concernant les aspects liés à l'évaluation d'une communication de sécurité tels que les bancs d'essai, la démonstration d'une immunité renforcée aux brouillages (CEM pour la sécurité fonctionnelle), la sécurité électrique et d'autres exigences en matière d'environnement. Elle s'applique uniquement aux appareils de sécurité offrant une communication pour la sécurité fonctionnelle qui ont été développés selon la CEI 61508 et la CEI 61784-3. Le domaine d'application concerne les environnements industriels généraux tels que définis dans la CEI 61131-2 ou la CEI 61000-6-2, et les environnements d'automatisation de procédés tels que ceux traités dans la série CEI 61326. Il est fait référence à l'ERS (Spécification des exigences des équipements) et/ou à la SRS (Spécification des exigences de sécurité) d'une application de sécurité particulière afin de vérifier l'immunité nécessaire des appareils et systèmes selon la CEI 61508. La présente version bilingue (2013-04) correspond à la version anglaise monolingue publiée en 2010-12.

Industrijska komunikacijska omrežja - Profili – Smernica za ocenjevanje varnostnih naprav, ki uporabljajo komunikacijske profile funkcionalne varnosti po IEC 61784-3 (IEC/TR 62685:2010)

To tehnično poročilo podaja informacije o vidikih ocenjevanja varne komunikacije, kot so preskusne naprave, dokaz imunosti pred povečanimi motnjami (EMC za funkcionalno varnost), električna varnost in druge okoljske zahteve. Ta dokument velja samo za varnostne naprave za komunikacijo funkcionalne varnosti, ki so razvite v skladu z IEC 61508 in IEC 61784-3. OPOMBA: Ta dokument ne zajema bolj zapletenih vidikov ohranjevanja obstoječih naprav in aplikacij na terenu in prenosa iz varnostnih pravil pred IEC 61508. Področje uporabe zajema splošna industrijska okolja, kot je določeno v IEC 61131-2 ali IEC 61000-6-2, in okolja avtomatizacije procesov, kot so zajeta v serijah IEC 61326. Naveden je sklic na ERS (specifikacija zahtev opreme) in/ali SRS (specifikacija varnostnih zahtev) določene varnostne aplikacije za potrditev potrebne imunosti naprav in sistemov v skladu z IEC 61508.

General Information

Status
Published
Publication Date
20-Oct-2011
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
20-Oct-2011
Due Date
25-Dec-2011
Completion Date
21-Oct-2011

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SLOVENSKI STANDARD
SIST-TP CLC/TR 62685:2011
01-december-2011
Industrijska komunikacijska omrežja - Profili – Smernica za ocenjevanje

varnostnih naprav, ki uporabljajo komunikacijske profile funkcionalne varnosti po

IEC 61784-3 (IEC/TR 62685:2010)

Industrial communication networks - Profiles - Assessment guideline for safety devices

using IEC 61784-3 functional safety communication profiles (FSCPs) (IEC/TR
62685:2010)

Industrielle Kommunikationsnetze - Profile - Beurteilungsleitfaden für Sicherheitsgeräte,

die funktional sichere Übertragung nach den Profilen der IEC 61784-3 verwenden
(IEC/TR 62685:2010)

Réseaux de communications industrielles - Profils - Recommandations d'évaluation pour

les équipements de sécurité utilisant les profils de sécurité de communication (FSCP) de

la CEI 61784-3 (CEI/TR 62685:2010)
Ta slovenski standard je istoveten z: CLC/TR 62685:2011
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
SIST-TP CLC/TR 62685:2011 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST-TP CLC/TR 62685:2011
---------------------- Page: 2 ----------------------
SIST-TP CLC/TR 62685:2011
TECHNICAL REPORT
CLC/TR 62685
RAPPORT TECHNIQUE
October 2011
TECHNISCHER BERICHT
ICS 13.160; 35.100.05
English version
Industrial communication networks -
Profiles -
Assessment guideline for safety devices using IEC 61784-3 functional
safety communication profiles (FSCPs)
(IEC/TR 62685:2010)
Réseaux de communications Industrielle Kommunikationsnetze -
industrielles - Profile -
Profils - Beurteilungsleitfaden für
Recommandations d'évaluation pour les Sicherheitsgeräte, die funktional sichere
équipements de sécurité utilisant les Übertragung nach den Profilen der
profils de sécurité de communication IEC 61784-3 verwenden
(FSCP) de la CEI 61784-3 (IEC/TR 62685:2010)
(CEI/TR 62685:2010)
This Technical Report was approved by CENELEC on 2011-10-03.

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

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TR 62685:2011 E
---------------------- Page: 3 ----------------------
SIST-TP CLC/TR 62685:2011
CLC/TR 62685:2011 - 2 -
Foreword

This document (CLC/TR 62685:2011) consists of the text of IEC/TR 62685:2010 prepared by SC 65C,

"Industrial networks", of IEC TC 65, "Industrial-process measurement, control and automation".

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent

rights.
Endorsement notice

The text of the International Standard IEC/TR 62685:2010 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:

[2] IEC 60204-1 NOTE Harmonized as EN 60204-1.
[3] IEC 60947-5-1 NOTE Harmonized as EN 60947-5-1.
[4] IEC 61000-4-2 NOTE Harmonized as EN 61000-4-2.
[5] IEC 61000-4-4 NOTE Harmonized as EN 61000-4-4.
[6] IEC 61000-4-5 NOTE Harmonized as EN 61000-4-5.
[7] IEC 61000-4-8 NOTE Harmonized as EN 61000-4-8.
[8] IEC 61000-4-11 NOTE Harmonized as EN 61000-4-11.
[9] IEC 61000-4-16 NOTE Harmonized as EN 61000-4-16.
[10] IEC 61000-4-29 NOTE Harmonized as EN 61000-4-29.
[12] IEC 61508-1:2010 NOTE Harmonized as EN 61508-1:2010.
[13] IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010.
[14] IEC 61508-5:2010 NOTE Harmonized as EN 61508-5:2010.
[15] IEC 61508-7:2010 NOTE Harmonized as EN 61508-7:2010.
[16] IEC 61158 series NOTE Harmonized in EN 61158 series.
[17] IEC 61784-1 NOTE Harmonized as EN 61784-1.
[18] IEC 61784-2 NOTE Harmonized as EN 61784-2.
[19] IEC 61800-3 NOTE Harmonized as EN 61800-3.
[20] IEC 61800-5-2 NOTE Harmonized as EN 61800-5-2.
[21] IEC 61918 NOTE Harmonized as EN 61918.
---------------------- Page: 4 ----------------------
SIST-TP CLC/TR 62685:2011
- 3 - CLC/TR 62685:2011
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 60068-2 Series Environmental testing - EN 60068-2 Series
Part 2: Tests
IEC 60079 Series Explosive atmospheres EN 60079 Series
IEC 60300-3-2 - Dependability management - EN 60300-3-2 -
Part 3-2: Application guide - Collection of
dependability data from the field

IEC 60721-3 Series Classification of environmental conditions - EN 60721-3 Series

Part 3: Classification of groups of
environmental parameters and their severities
IEC 60721-3-1 - Classification of environmental conditions - EN 60721-3-1 -
Part 3: Classification of groups of
environmental parameters and their
severities - Section 1: Storage
IEC 60721-3-2 - Classification of environmental conditions - EN 60721-3-2 -
Part 3: Classification of groups of
environmental parameters and their
severities - Section 2: Transportation
IEC 60721-3-3 - Classification of environmental conditions - EN 60721-3-3 -
Part 3: Classification of groups of
environmental parameters and their
severities - Section 3: Stationary use at
weatherprotected locations
IEC/TS 61000-1-2 - Electromagnetic compatibility (EMC) - - -
Part 1-2: General - Methodology for the
achievement of functional safety of electrical
and electronic systems including equipment
with regard to electromagnetic phenomena
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 -
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - EN 61000-4-6 -
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN 61000-6-2 -
Part 6-2: Generic standards - Immunity for
industrial environments
IEC 61010 Series Safety requirements for electrical equipment EN 61010 Series
for measurement, control and laboratory use
---------------------- Page: 5 ----------------------
SIST-TP CLC/TR 62685:2011
CLC/TR 62685:2011 - 4 -
Publication Year Title EN/HD Year
IEC 61131-2 2007 Programmable controllers - EN 61131-2 2007
Part 2: Equipment requirements and tests
IEC 61241 Series Electrical apparatus for use in the presence EN 61241 Series
of combustible dust
IEC 61326 Series Electrical equipment for measurement, EN 61326 Series
control and laboratory use - EMC
requirements
IEC 61326-1 - Electrical equipment for measurement, EN 61326-1 -
control and laboratory use - EMC
requirements -
Part 1: General requirements
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, 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 61496-1 - Safety of machinery - Electro-sensitive EN 61496-1 -
+ A 1 protective equipment - + A 1
Part 1: General requirements and tests
IEC 61508 Series Functional safety of EN 61508 Series
electrical/electronic/programmable electronic
safety-related systems
IEC 61508-2 2010 Functional safety of EN 61508-2 2010
electrical/electronic/programmable electronic
safety-related systems -
Part 2: Requirements for
electrical/electronic/programmable electronic
safety-related systems
IEC 61508-3 2010 Functional safety of EN 61508-3 2010
electrical/electronic/programmable electronic
safety-related systems -
Part 3: Software requirements
IEC 61511 Series Functional safety - Safety instrumented EN 61511 Series
systems for the process industry sector
IEC 61779 Series Electrical apparatus for the detection and EN 61779 Series
measurement of flammable gases

IEC 61784-3 Series Industrial communication networks - Profiles - EN 61784-3 Series

Part 3: Functional safety fieldbuses - General
rules and profile definitions
IEC 61784-3 2010 Industrial communication networks - Profiles - EN 61784-3 2010
Part 3: Functional safety fieldbuses - General
rules and profile definitions
---------------------- Page: 6 ----------------------
SIST-TP CLC/TR 62685:2011
- 5 - CLC/TR 62685:2011
Publication Year Title EN/HD Year
IEC 62013 Series Caplights for use in mines susceptible to EN 62013 Series
firedamp
IEC 62061 - Safety of machinery - Functional safety of EN 62061 -
safety-related electrical, electronic and
programmable electronic control systems
IEC 62086-1 - Electrical apparatus for explosive gas EN 62086-1 -
atmospheres - Electrical resistance trace
heating -
Part 1: General and testing requirements
ISO 13849-1 - Safety of machinery - Safety-related parts of EN ISO 13849-1 -
control systems -
Part 1: General principles for design
---------------------- Page: 7 ----------------------
SIST-TP CLC/TR 62685:2011
---------------------- Page: 8 ----------------------
SIST-TP CLC/TR 62685:2011
IEC/TR 62685
Edition 1.0 2010-12
TECHNICAL
REPORT
colour
inside
Industrial communication networks – Profiles –
Assessment guideline for safety devices using IEC 61784-3 functional safety
communication profiles (FSCPs)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
ICS 13.160; 35.100.05 ISBN 978-2-88912-250-9
® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 9 ----------------------
SIST-TP CLC/TR 62685:2011
– 2 – TR 62685 Ó IEC:2010(E)
CONTENTS

FOREW ORD .................................................................................................................. 4

INTRODUCTION ............................................................................................................ 6

1 Sc o pe ...................................................................................................................... 7

2 Normative references ................................................................................................ 7

3 Terms, definitions, symbols and abbreviations ............................................................. 9

3.1 Terms and definitions ....................................................................................... 9

3.2 Symbols and abbreviations ............................................................................. 11

4 General ................................................................................................................. 12

5 Test bed and operations .......................................................................................... 13

6 General test conditions ........................................................................................... 14

7 Climatic tests ......................................................................................................... 15

8 Mechanical tests..................................................................................................... 15

9 Markings and identification ...................................................................................... 16

10 User manual .......................................................................................................... 16

11 Electromagnetic immunity ........................................................................................ 17

11.1 Test bed for EMC testing ................................................................................ 17

11.2 Existing EMC standards for functional safety .................................................... 17

11.3 Phase I testing (normal immunity) .................................................................... 17

11.4 Phase II testing (increased immunity) .............................................................. 19

11.5 Rules ............................................................................................................ 20

12 Electrical safety ...................................................................................................... 20

12.1 General ......................................................................................................... 20

12.2 Ingress protection (IP) .................................................................................... 21

12.3 Insulation rating ............................................................................................. 21

12.4 Electrical shock.............................................................................................. 21

12.5 Clearance and creepage distances .................................................................. 21

12.6 Flame-retardancy ........................................................................................... 21

13 Suitability of components......................................................................................... 21

14 Simple circumvention .............................................................................................. 22

15 Explosive atmosphere ............................................................................................. 22

16 Field verification (process automation devices) .......................................................... 22

Annex A (informative) Comparison of immunity levels in several IEC standards ................. 24

Annex B (informative) Product, sector and application specific requirements ..................... 27

Bibliography ................................................................................................................. 28

Table 1 – Overview of the environmental tests for safety devices ...................................... 13

Table 2 – General test conditions ................................................................................... 14

Table A.1 – Comparison of immunity levels ..................................................................... 24

Figure 1 – Environmental view on safety functions ............................................................. 6

Figure 2 – Example of a mixed module remote I/O ........................................................... 12

Figure 3 – Example test bed for EMC and other testing .................................................... 14

Figure 4 – Example application areas within an automation application .............................. 17

Figure 5 – Generic procedural model for safety EMC testing (part 1).................................. 18

---------------------- Page: 10 ----------------------
SIST-TP CLC/TR 62685:2011
TR 62685 Ó IEC:2010(E) – 3 –

Figure 6 – Generic procedural model for safety EMC testing (part 2).................................. 19

Figure 7 – EMC mitigation using a cabinet ...................................................................... 20

Figure 8 – Justification for field verification with process automation devices ...................... 22

---------------------- Page: 11 ----------------------
SIST-TP CLC/TR 62685:2011
– 4 – TR 62685 Ó IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Assessment guideline for safety devices using IEC 61784-3
functional safety communication profiles (FSCPs)
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.

The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a technical report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC 62685, which is a technical report, has been prepared by subcommittee 65C: Industrial

networks, of IEC technical committee 65: Industrial-process measurement, control and

automation.
---------------------- Page: 12 ----------------------
SIST-TP CLC/TR 62685:2011
TR 62685 Ó IEC:2010(E) – 5 –
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
65C/610/DTR 65C/626/RVC

Full information on the voting for the approval of this technical report 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.

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.
A bilingual version of this document may be issued at a later date.

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.

---------------------- Page: 13 ----------------------
SIST-TP CLC/TR 62685:2011
– 6 – TR 62685 Ó IEC:2010(E)
INTRODUCTION

During the development of IEC 61784-3:2010, the need was recognized for a separate

document covering environmental tests, proofs and information checks, which were currently

specified in the German document GS-ET-26 [37] . This document has been one of the

starting points for IEC 61784-3 and most of its contents have been already taken into account

in IEC 61784-3. The material related to environmental tests, proofs and information checks

has been transformed, updated and supplemented into this new document.

NOTE IEC 61784-3 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.

The combination of the IEC 61508 series , with its new view on complete safety functions,

and of the FSCPs in the IEC 61784-3 series, eases the implementation of safety functions.

Further benefits can be achieved, if the environmental conditions can be defined and

harmonized for FSCP devices.

The objective of this document is to specify the requirements for FSCP devices on how to

fulfill environmental and deployment conditions. It addresses the needs of designers,

manufacturers, assessment bodies, and test laboratories.

Figure 1 provides a basic overview on safety functions, FSCP devices and the impact of the

environment. It demonstrates the necessity of harmonized environmental requirements.

EMEMC fC foor r FSFS
EEMC MC ffor or FFSS
EEMC MC ffoor r FFSS
EEMC MC ffor or FFSS EEMMC fC foor FSr FS
PPA A ddeveviceice
LiLinknk
e.ge.g. E. Ex ix i
LogiLogicc
SensSensoror AcActuatuatortor

VVololtatagege cchhananggeses VVoollttagagee cchahanngegess VVololttageage cchhananggeses VoVolltatagege cchhananggeses

PPoowwer er ssuppuppllyy ((e.e.g. g. 24 V24 VDC)DC)
IEC 2535/10
Figure 1 – Environmental view on safety functions
___________
Numbers in square brackets refer to the Bibliography.
In this Technical Report, “IEC 61508” is used for “IEC 61508 series”.
---------------------- Page: 14 ----------------------
SIST-TP CLC/TR 62685:2011
TR 62685 Ó IEC:2010(E) – 7 –
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Assessment guideline for safety devices using IEC 61784-3
functional safety communication profiles (FSCPs)
1 Scope
This Technical Report provides information about the assessment aspects of safe

communication such as test beds, proof of increased interference immunity (EMC for

functional safety), electrical safety, and other environmental requirements.

This document is only applicable to safety devices for functional safety communication which

are developed according to IEC 61508 and IEC 61784-3.

NOTE This document does not cover the more complex aspects of preserving existing devices and applications in

the field and migration from safety rules before IEC 61508.

The scope covers general industrial environments such as defined in IEC 61131-2 or

IEC 61000-6-2 and process automation environments such as those covered in the IEC 61326

series.

Reference is made to the ERS (Equipment Requirements Specification) and/or SRS (Safety

Requirements Specification) of a particular safety application to verify the necessary immunity

of devices and systems according to IEC 61508.
2 Normative references

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.
IEC 60068-2 (all parts) , Environmental testing – Part 2-x: Tests
IEC 60079 (all parts) , Explosive atmospheres

IEC 60300-3-2, Dependability management – Part 3-2: Application guide – Collection of

dependability data from the field

IEC 60721-3 (all parts) , Classification of environmental conditions – Part 3 Classification of

groups of environmental parameters and their severities

IEC 60721-3-1, Classification of environmental conditions – Part 3 Classification of groups of

environmental parameters and their severities – Section 1: Storage

IEC 60721-3-2, Classification of environmental conditions – Part 3: Classification of groups of

environmental parameters and their severities – Section 2: Transportation
___________

Relevant parts of the series depend on the context – see detailed requirements in the following clauses.

---------------------- Page: 15 ----------------------
SIST-TP CLC/TR 62685:2011
– 8 – TR 62685 Ó IEC:2010(E)

IEC 60721-3-3, Classification of environmental conditions – Part 3-3: Classification of groups

of environmental parameters and their severities – Stationary use at weatherprotected

locations

IEC/TS 61000-1-2, Electromagnetic compatibility (EMC) – Part 1-2: General – Methodology

for the achievement of functional safety of electrical and electronic systems including

equipment with regard to electromagnetic phenomena

IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement

techniques – Radiated radio-frequency electromagnetic field immunity test

IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement

techniques – Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –

Immunity for industrial environments

IEC 61010 (all parts) , Safety requirements for electrical equipment for measurement, control,

and laboratory use

IEC 61131-2:2007, Programmable controllers – Part 2: Equipment requirements and tests

IEC 61241 (all parts) , Electrical apparatus for use in the presence of combustible dust

IEC 61326 (all parts) , Electrical equipment for measurement, control and laboratory use –

EMC requirements

IEC 61326-1, Electrical equipment for measurement, control and laboratory use – EMC

requirements – Part 1: General requirements

IEC 61326-3-1, Electrical equipment for measurement, 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 61496-1, Safety of machinery – Electro-sensitive protective equipment – Part 1: General

requirements and tests
IEC 61496-1, Amendment 1 (2007)

IEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic

safety-related systems

IEC 61508-2:2010, Functional safety of electrical/electronic/programmable electronic safety-

related systems – Part 2: Requirements for electrical/electronic/programmable electronic

safety-related systems

IEC 61508-3:2010, Functional safety of electrical/electronic/programmable electronic safety-

related systems – Part 3: Software requirements
___________

Relevant parts of the series depend on the context – see detailed requirements in the following clauses.

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SIST-TP CLC/TR 62685:2011
TR 62685 Ó IEC:2010(E) – 9 –

IEC 61511 (all parts), Functional safety – Safety instrumented systems for the process

industry sector

IECEx 61779-x (all parts), IECEx Test Report for IEC 61779-x (1998) ed 1.0 – Electrical

apparatus for the detection and measurement of flammable gases
IEC 61784-3 (all parts) , Industrial communicatio
...

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