1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 61784-3-8:2010Industrial communicationnetworks Profiles -Part 3-8: Functional safety fieldbuses Additional specifications for CPF 8BS EN 61784-3-8:2010 BRITISH STANDARDNati
2、onal forewordThis British Standard is the UK implementation of EN 61784-3-8:2010.The UK participation in its preparation was entrusted to TechnicalCommittee AMT/7, Industrial communications: process measurementand control, including fieldbus.A list of organizations represented on this committee can
3、beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 72031 4ICS 25.040.40; 35.100.05Compliance with a British Standard cannot confer immunity fromlegal o
4、bligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD EN 61784-3-8 NORME EUROPENNE EUROPISCHE NORM August 2010 CENELEC European Committee for Electro
5、technical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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
6、 61784-3-8:2010 E 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) Rseaux de communication industriels - Profils - Partie 3-8: Bus de terrain de scurit fonctionnel
7、le - Spcification supplmentaire pour CPF 8 (CEI 61784-3-8:2010) Industrielle Kommunikationsnetze - Profile - Teil 3-8: Funktional sichere bertragung bei Feldbussen - Zustzliche Festlegungen fr die Kommunikationsprofilfamilie 8 (IEC 61784-3-8:2010) This European Standard was approved by CENELEC on 20
8、10-07-01. 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
9、 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
10、 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,
11、 Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61784-3-8:2010EN 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 ne
12、tworks, 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
13、. 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 national standard or by endorsement (dop) 2011-04-01 latest date by which
14、the national standards conflicting with the EN have to be withdrawn (dow) 2013-07-01 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, fo
15、r 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 6150
16、8-5:2010 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 1
17、0218-1. 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. _ BS EN 61784-3-8:2010- 3 - EN 61784-3-8:2010 Annex ZA (normative) Normative references to international publications with their corresponding European
18、 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 publicat
19、ion 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 of machines - Part 1: General requirements EN 60204-1 - IEC 61131-2 - Programmable controllers - Part 2: Equipment
20、 requirements and tests EN 61131-2 - IEC 61158 Series Industrial communication networks - Fieldbus specifications - EN 61158 Series IEC 61158-2 - Industrial communication networks Fieldbus specifications - Part 2: Physical layer specification and service definition EN 61158-2 - IEC 61158-3-18 - Indu
21、strial communication networks - Fieldbus specifications - Part 3-18: Data-link layer service definition - Type 18 elements EN 61158-3-18 - IEC 61158-4-18 - Industrial communication networks - Fieldbus specifications - Part 4-18: Data-link layer protocol specification - Type 18 elements EN 61158-4-18
22、 - IEC 61158-5-18 - Industrial communication networks - Fieldbus specifications - Part 5-18: Application layer service definition -Type 18 elements EN 61158-5-18 - IEC 61158-6-18 - Industrial communication networks - Fieldbus specifications - Part 6-18: Application layer protocol specification - Typ
23、e 18 elements EN 61158-6-18 - 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 appli
24、cations EN 61326-3-1 - BS EN 61784-3-8:2010EN 61784-3-8:2010 - 4 - Publication Year Title EN/HD Year 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
25、safety-related functions (functional safety) - Industrial applications with specified electromagnetic environment EN 61326-3-2 - IEC 61508 Series Functional safety of electrical/electronic/programmable electronic safety-related systems EN 61508 Series IEC 61511 Series Functional safety - Safety inst
26、rumented systems for the process industry sector EN 61511 Series IEC 61784-1 - Industrial communication networks - Profiles - Part 1: Fieldbus profiles EN 61784-1 - IEC 61784-3 2010 Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile defini
27、tions EN 61784-3 2010 IEC 62061 - Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic control systems EN 62061 - 4 61784-3-8 IEC:2010(E) CONTENTS INTRODUCTION.7 1 Scope.10 2 Normative references .10 3 Terms, definitions, symbols, abbreviated t
28、erms 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
29、 4 Overview of FSCP 8/1 (CC-Link Safety) 17 5 General 18 5.1 External documents providing specifications for the profile18 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 Fe
30、edback 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 services21 6.1 General .21 6.2 SASEs.21 6.2.1 M1 safety device manager c
31、lass specification21 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 class22 6.4 Process data SAR ASEs23 6.4.1 M1 safety cyclic transmission class specification .23 6.4.2 S1 safety cyclic transmission c
32、lass specification23 7 Safety communication layer protocol 24 7.1 Safety PDU format 24 7.1.1 General .24 7.1.2 Abstract syntax24 7.1.3 Transfer syntax26 7.2 State description .30 7.2.1 Overview .30 7.2.2 Idle31 BS EN 61784-3-8:201061784-3-8 IEC:2010(E) 5 7.2.3 FAL running.31 7.2.4 SCL running 32 7.2
33、.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 verifi
34、cation process .35 8.3.3 Safety slave parameter transmission .35 9 System requirements36 9.1 Indicators and switches .36 9.1.1 Switches36 9.1.2 Indicators 36 9.2 Installation guidelines37 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.
35、5 Constraints for calculation of system characteristics39 9.5.1 System characteristics.39 9.5.2 Residual error rate ().39 9.6 Maintenance40 9.7 Safety manual .40 10 Assessment41 Annex A (informative) Additional information for functional safety communication profiles of CPF 842 A.1 Hash function cal
36、culation42 A.2 .42 Annex B (informative) Information for assessment of the functional safety communication profiles of CPF 8 43 Bibliography44 Table 1 Selection of the various measures for possible errors19 Table 2 M1 safety device manager attribute format24 Table 3 S1 safety device manager attribut
37、e format 24 Table 4 M1 safety connection manager attribute format .24 Table 5 S1 safety connection manager attribute format25 Table 6 M1 safety cyclic transmission attribute format .25 Table 7 S1 safety cyclic transmission attribute format26 Table 8 M1 safety device manager attribute encoding26 Tabl
38、e 9 S1 safety device manager attribute encoding 27 Table 10 M1 safety connection manager attribute encoding .27 Table 11 S1 safety connection manager attribute encoding27 BS EN 61784-3-8:2010 6 61784-3-8 IEC:2010(E) Table 12 M1 safety cyclic transmission attribute encoding .28 Table 13 S1 safety cyc
39、lic transmission attribute encoding29 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 processing35 Table 18 Details of slave information
40、verification processing35 Table 19 Details of safety slave parameter transmission processing 36 Table 20 Monitor LEDs 36 Table 21 Safety function response time calculation38 Table 22 Safety function response time definition of terms.38 Table 23 Number of occupied slots and safety data .39 Table 24 R
41、esidual error rate (occupied slots = 1)40 Table 25 Residual error rate (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
42、 61158 Type 18.21 Figure 4 State diagram 31 BS EN 61784-3-8:201061784-3-8 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.
43、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 communica
44、tions 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 asp
45、ects. Figure 1 shows the relationships between this standard and relevant safety and fieldbus standards in a machinery environment. IEC 61000-1-2Methodology EMC otherwise IEC 61326-3-1. bEN ratified. Figure 2 Relationships of IEC 61784-3 with other standards (process) Safety communication layers whi
46、ch are implemented as parts of safety-related systems according to IEC 61508 series provide the necessary confidence in the transportation of messages (information) between two or more participants on a fieldbus in a safety-related system, or sufficient confidence of safe behaviour in the event of f
47、ieldbus errors or failures. Safety communication layers specified in this standard do this in such a way that a fieldbus can be used for applications requiring functional safety up to the Safety Integrity Level (SIL) specified by its corresponding functional safety communication profile. The resulti
48、ng SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system implementation of a functional safety communication profile in a standard device is not sufficient to qualify it as a safety device. BS EN 61784-3-8:201061784-3-8 IEC:201
49、0(E) 9 This standard describes: basic principles for implementing the requirements of IEC 61508 series for safety-related data communications, including possible transmission faults, remedial measures and considerations affecting data integrity; individual description of functional safety profiles for several communication profile families in IEC 61784-1 and IEC 61784-2; safety layer extensions to the communication service and protoc
