1、Industrial communication networks ProfilesPart 3: Functional safety fieldbuses General rules and profile definitionsBS EN 61784-3:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 61784-3:2016. I
2、t isidentical to IEC 61784-3:2016. It supersedes BS EN 61784-3:2010 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AMT/7, Industrial communications: process measurement andcontrol, including fieldbus.A list of organizations represented on this committee
3、 can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 85166 7ICS 25.040.40; 35
4、.100.05Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 6178
5、4-3:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61784-3 August 2016 ICS 25.040.40; 35.100.05 Supersedes EN 61784-3:2010 English Version Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile definitions (IEC 61784-3:2016) Rseaux d
6、e communication industriels - Profils - Partie 3: Bus de terrain de scurit fonctionnelle - Rgles gnrales et dfinitions de profils (IEC 61784-3:2016) Industrielle Kommunikationsnetze - Profile - Teil 3: Funktional sichere bertragung bei Feldbussen - Allgemeine Regeln und Festlegungen fr Profile (IEC
7、61784-3:2016) This European Standard was approved by CENELEC on 2016-06-17. 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 bi
8、bliographical 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
9、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,
10、Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for E
11、lectrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Member
12、s. Ref. No. EN 61784-3:2016 E BS EN 61784-3:2016EN 61784-3:2016 2 European foreword The text of document 65C/840/FDIS, future edition 3 of IEC 61784-3, prepared by SC 65C “Industrial networks“ of IEC/TC 65 “Industrial-process measurement, control and automation“ was submitted to the IEC-CENELEC para
13、llel vote and approved by CENELEC as EN 61784-3:2016. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-03-17 latest date by which the national standards conflicting w
14、ith the document have to be withdrawn (dow) 2019-06-17 This document supersedes EN 61784-3:2010. 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 pate
15、nt rights. Endorsement notice The text of the International Standard IEC 61784-3:2016 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 E
16、N 60204-1. IEC 61131-2:2007 NOTE Harmonized as EN 61131-2:2007 (not modified). IEC 61131-6 NOTE Harmonized as EN 61131-6. IEC 61496 NOTE Harmonized in EN 61496 series. IEC 61496-1 NOTE Harmonized as EN 61496-1. IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified). IEC 61508-5:2010 NOTE
17、 Harmonized as EN 61508-5:2010 (not modified). IEC 61511 NOTE Harmonized in EN 61511 series. IEC 61800-5-2 NOTE Harmonized as EN 61800-5-2. IEC 62061:2005 NOTE Harmonized as EN 62061:2005 (not modified). IEC/TR 62685 NOTE Harmonized as CLC/TR 62685. BS EN 61784-3:2016EN 61784-3:2016 3 ISO 10218-1 NO
18、TE Harmonized as EN ISO 10218-1. ISO 12100 NOTE Harmonized as EN ISO 12100. ISO 13849 NOTE Harmonized in EN ISO 13849 series. ISO 13849-1:2015 NOTE Harmonized as EN ISO 13849-1:2015 (not modified). BS EN 61784-3:2016EN 61784-3:2016 4 Annex ZA (normative) Normative references to international publica
19、tions with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced
20、 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
21、.cenelec.eu. Publication Year Title EN/HD Year IEC 61000-6-7 - Electromagnetic compatibility (EMC) - Part 6-7: Generic standards - Immunity requirements for equipment intended to perform functions in a safety-related system (functional safety) in industrial locations EN 61000-6-7 - IEC 61010-2-201 2
22、013 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-201: Particular requirements for control equipment EN 61010-2-201 2013 - - + AC 2013 IEC 61158 series Industrial communication networks - Fieldbus specifications EN 61158 series IEC 61326-3-1 - Elec
23、trical 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 EN 61326-3-1 - IEC 61326-3-2 - Electrical
24、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 EN 61326-3-2 -
25、 IEC 61508 series Functional safety of electrical/electronic/programmable electronic safety-related systems EN 61508 series BS EN 61784-3:2016EN 61784-3:2016 5 Publication Year Title EN/HD Year IEC 61508-1 2010 Functional safety of electrical/electronic/programmable electronic safety-related systems
26、 - Part 1: General requirements EN 61508-1 2010 IEC 61508-2 - Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems EN 61508-2 - IEC 61784-1 - Industrial communication
27、networks - Profiles - Part 1: Fieldbus profiles EN 61784-1 - IEC 61784-2 - Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3 EN 61784-2 - IEC 61784-3-1 - Industrial communication networks - Profiles - Part 3-1: Function
28、al safety fieldbuses - Additional specifications for CPF 1 EN 61784-3-1 - IEC 61784-3-2 - Industrial communication networks - Profiles - Part 3-2: Functional safety fieldbuses - Additional specifications for CPF 2 EN 61784-3-2 - IEC 61784-3-3 - Industrial communication networks - Profiles - Part 3-3
29、: Functional safety fieldbuses - Additional specifications for CPF 3 EN 61784-3-3 - IEC 61784-3-6 - Industrial communication networks - Profiles - Part 3-6: Functional safety fieldbuses - Additional specifications for CPF 6 EN 61784-3-6 - IEC 61784-3-8 - Industrial communication networks - Profiles
30、- Part 3-8: Functional safety fieldbuses - Additional specifications for CPF 8 EN 61784-3-8 - IEC 61784-3-12 - Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12 EN 61784-3-12 - IEC 61784-3-13 - Industrial communication netwo
31、rks - Profiles - Part 3-13: Functional safety fieldbuses - Additional specifications for CPF 13 EN 61784-3-13 - IEC 61784-3-14 - Industrial communication networks - Profiles - Part 3-14: Functional safety fieldbuses - Additional specifications for CPF 14 EN 61784-3-14 - BS EN 61784-3:2016EN 61784-3:
32、2016 6 Publication Year Title EN/HD Year IEC 61784-3-17 - 1)Industrial communication networks - Profiles - Part 3-17: Functional safety fieldbuses - Additional specifications for CPF 17 - - IEC 61784-3-18 - Industrial communication networks - Profiles - Part 3-18: Functionnal safety fieldbuses - Add
33、itional specifications for CPF 18 EN 61784-3-18 - IEC 61784-5 series Industrial communication networks - Profiles - Part 5: Installation of fieldbuses EN 61784-5 series IEC 61918 (mod) 2013 Industrial communication networks - Installation of communication networks in industrial premises EN 61918 201
34、3 - - + AC 2014 IEC 62443 series Industrial communication networks - Network and system security EN 62443 series 1) To be published. BS EN 61784-3:2016 2 IEC 61784-3:2016 IEC 2016 CONTENTS FOREWORD . 7 0 Introduction . 9 0.1 General . 9 0.2 Transition from Edition 2 to extended assessment methods in
35、 Edition 3 11 0.3 Patent declaration . 12 1 Scope 13 2 Normative references. 13 3 Terms, definitions, symbols, abbreviated terms and conventions. 15 3.1 Terms and definitions 15 3.2 Symbols and abbreviated terms . 22 4 Conformance . 23 5 Basics of safety-related fieldbus systems . 23 5.1 Safety func
36、tion decomposition . 23 5.2 Communication system . 24 5.2.1 General . 24 5.2.2 IEC 61158 fieldbuses . 24 5.2.3 Communication channel types 25 5.2.4 Safety function response time 25 5.3 Communication errors . 26 5.3.1 General . 26 5.3.2 Corruption 26 5.3.3 Unintended repetition . 26 5.3.4 Incorrect s
37、equence 26 5.3.5 Loss 27 5.3.6 Unacceptable delay 27 5.3.7 Insertion 27 5.3.8 Masquerade . 27 5.3.9 Addressing. 27 5.4 Deterministic remedial measures . 27 5.4.1 General . 27 5.4.2 Sequence number 27 5.4.3 Time stamp 27 5.4.4 Time expectation 28 5.4.5 Connection authentication 28 5.4.6 Feedback mess
38、age 28 5.4.7 Data integrity assurance . 28 5.4.8 Redundancy with cross checking 28 5.4.9 Different data integrity assurance systems 29 5.5 Typical relationships between errors and safety measures . 29 5.6 Communication phases . 30 5.7 FSCP implementation aspects . 31 5.8 Data integrity consideration
39、s . 31 5.8.1 Calculation of the residual error rate . 31 5.8.2 Total residual error rate and SIL . 33 5.9 Relationship between functional safety and security . 34 5.10 Boundary conditions and constraints 35 BS EN 61784-3:2016IEC 61784-3:2016 IEC 2016 3 5.10.1 Electrical safety . 35 5.10.2 Electromag
40、netic compatibility (EMC) 35 5.11 Installation guidelines 36 5.12 Safety manual . 36 5.13 Safety policy . 36 6 Communication Profile Family 1 (FOUNDATION Fieldbus) Profiles for functional safety 37 7 Communication Profile Family 2 (CIP) and Family 16 (SERCOS) Profiles for functional safety 37 8 Comm
41、unication Profile Family 3 (PROFIBUS, PROFINET) Profiles for functional safety 37 9 Communication Profile Family 6 (INTERBUS) Profiles for functional safety 38 10 Communication Profile Family 8 (CC-Link) Profiles for functional safety 38 10.1 Functional Safety Communication Profile 8/1 . 38 10.2 Fun
42、ctional Safety Communication Profile 8/2 . 39 11 Communication Profile Family 12 (EtherCAT) Profiles for functional safety . 39 12 Communication Profile Family 13 (Ethernet POWERLINK) Profiles for functional safety 40 13 Communication Profile Family 14 (EPA) Profiles for functional safety 40 14 Comm
43、unication Profile Family 17 (RAPIEnet) Profiles for functional safety . 40 15 Communication Profile Family 18 (SafetyNET p Fieldbus) Profiles for functional safety 41 Annex A (informative) Example functional safety communication models . 42 A.1 General . 42 A.2 Model A (single message, channel and F
44、AL, redundant SCLs) . 42 A.3 Model B (full redundancy) 42 A.4 Model C (redundant messages, FALs and SCLs, single channel) 43 A.5 Model D (redundant messages and SCLs, single channel and FAL) 43 Annex B (normative) Safety communication channel model using CRC-based error checking . 45 B.1 Overview. 4
45、5 B.2 Channel model for calculations 45 B.3 Bit error probability Pe. 46 B.4 Cyclic redundancy checking 47 B.4.1 General . 47 B.4.2 Considerations concerning CRC polynomials 48 Annex C (informative) Structure of technology-specific parts . 50 Annex D (informative) Assessment guideline 52 D.1 Overvie
46、w. 52 D.2 Channel types . 52 D.2.1 General . 52 D.2.2 Black channel 52 D.2.3 White channel 52 D.3 Data integrity considerations for white channel approaches 53 D.3.1 General . 53 D.3.2 Models B and C . 53 D.3.3 Models A and D . 54 D.4 Verification of safety measures 55 BS EN 61784-3:2016 4 IEC 61784
47、-3:2016 IEC 2016 D.4.1 General . 55 D.4.2 Implementation 55 D.4.3 “De-energize to trip“ principle . 55 D.4.4 Safe state 55 D.4.5 Transmission errors . 55 D.4.6 Safety reaction and response times 55 D.4.7 Combination of measures . 56 D.4.8 Absence of interference . 56 D.4.9 Additional fault causes (w
48、hite channel) . 56 D.4.10 Reference test beds and operational conditions 56 D.4.11 Conformance tester 56 Annex E (informative) Examples of implicit vs. explicit FSCP safety measures 57 E.1 General . 57 E.2 Example fieldbus message with safety PDUs . 57 E.3 Model with completely explicit safety measu
49、res . 57 E.4 Model with explicit A-code and implicit T-code safety measures . 58 E.5 Model with explicit T-code and implicit A-code safety measures . 58 E.6 Model with split explicit and implicit safety measures . 59 E.7 Model with completely implicit safety measures . 60 E.8 Addition to Annex B impact of implicit codes on properness 60 Annex F (informative) Extended models for estimation of the total residual error rate 61 F.1 Applicability 61 F.2 General models for b
