1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationIndustrial communication networks ProfilesPart 3-18: Functional safety fieldbuses Additional specifications for CPF 18BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE C
2、HINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 61784-3-18:2011. It is identical to IEC 61784-3-18:2011. It supersedes DD IEC/PAS 61784-3-18:2009,which is withdrawn.The UK participation in its preparation was entrusted
3、 to Technical Committee AMT/7, Industrial communications: process measurement and control, including fieldbus.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Use
4、rs are responsible for its correct application. BSI 2011ISBN 978 0 580 68192 9 ICS 13.110, 25.040.40, 35.100.05 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3
5、1 July 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61784-3-18 NORME EUROPENNE EUROPISCHE NORM July 2011 CENELEC European
6、 Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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 CENELE
7、C members. Ref. No. EN 61784-3-18:2011 E ICS 13.110; 25.040.40; 35.100.05 English version Industrial communication networks - Profiles - Part 3-18: Functional safety fieldbuses - Additional specifications for CPF 18 (IEC 61784-3-18:2011) Rseaux de communication industriels - Profils - Partie 3-18: B
8、us de terrain scurit fonctionnelle - Spcifications supplmentaires pour le CPF 18 (CEI 61784-3-18:2011) Industrielle Kommunikationsnetze - Profile - Teil 3-18: Funktional sichere bertragung bei Feldbussen - Zustzliche Festlegungen fr die Kommunikationsprofilfamilie 18 (IEC 61784-3-18:2011) This Europ
9、ean Standard was approved by CENELEC on 2011-05-25. 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
10、 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
11、 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, I
12、celand, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c
13、) BSIEN 61784-3-18:2011 Foreword The text of document 65C/639/FDIS, future edition 1 of IEC 61784-3-18, 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 6178
14、4-3-18 on 2011-05-25. 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
15、be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-02-25 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-05-25 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Inte
16、rnational Standard IEC 61784-3-18:2011 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 EN 60204-1. IEC 61131-6 NOTE Harmonized as EN 61
17、131-61). IEC 61158 series NOTE Harmonized in EN 61158 series. IEC 61326-3-1 NOTE Harmonized as EN 61326-3-1. IEC 61326-3-2 NOTE Harmonized as EN 61326-3-2. IEC 61496 series NOTE Harmonized in EN 61496 series. IEC 61508-1:2010 NOTE Harmonized as EN 61508-1:2010. IEC 61508-4:2010 NOTE Harmonized as EN
18、 61508-4:2010. IEC 61508-5:2010 NOTE Harmonized as EN 61508-5:2010. IEC 61511 series NOTE Harmonized in EN 61511 series. IEC 61784-1 NOTE Harmonized as EN 61784-1. IEC 61784-5 series NOTE Harmonized in EN 61784-5 series. IEC 61800-5-2 NOTE Harmonized as EN 61800-5-2. IEC 62061 NOTE Harmonized as EN
19、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. 1)At draft stage. BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSIEN 61784-3-18:
20、2011 ISO 13849-2 NOTE Harmonized as EN ISO 13849-2. ISO 14121 NOTE Harmonized as EN ISO 14121. _ BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSIEN 61784-3-18:2011 Annex ZA (normative) Normative references to international publi
21、cations 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) app
22、lies. 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 61158-3-22 - Industrial communication networks - Fieldbus specifications - Part 3-22: Data-link layer service definition - Typ
23、e 22 elements - - IEC 61158-4-22 - Industrial communication networks - Fieldbus specifications - Part 4-22: Data-link layer protocol specification - Type 22 elements - - IEC 61158-5-22 - Industrial communication networks - Fieldbus specifications - Part 5-22: Application layer service definition -Ty
24、pe 22 elements - - IEC 61158-6-22 - Industrial communication networks - Fieldbus specifications - Part 6-22: Application layer protocol specification - Type 22 elements - - IEC 61508 Series Functional safety of electrical/electronic/programmable electronic safety-related systems EN 61508 Series IEC
25、61508-2 2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems EN 61508-2 2010 IEC 61784-2 2010 Industrial communication networks - Profiles - Part 2: Additional fi
26、eldbus profiles for real-time networks based on ISO/IEC 8802-3 EN 61784-2 2010 IEC 61784-3 2010 Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile definitions EN 61784-3 2010 IEC 61918 - Industrial communication networks - Installation of
27、communication networks in industrial premises EN 61918 - ISO/IEC 10731 - Information technology - Open Systems Interconnection - Basic reference model - Conventions for the definition of OSI services - - BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Un
28、controlled Copy, (c) BSI61784-3-18 IEC:2011 CONTENTS 0 Introduction . . 7 0.1 General . 7 0.2 Patent declaration . 9 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 C
29、PF 18: Additional terms and definitions . 15 3.2 Symbols and abbreviated terms 16 3.2.1 Common symbols and abbreviated terms 16 3.2.2 CPF 18: Additional symbols and abbreviated terms . 17 3.3 Conventions . 17 4 Overview of FSCP 18/1 (SafetyNET p) . . 19 4.1 General . . 19 4.2 FSCP 18/1 . 19 5 Genera
30、l . 20 5.1 External documents providing specifications for the profile 20 5.2 Safety functional requirements . 20 5.3 Safety measures . 20 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 laye
31、r services . 22 6.1 General elements 22 6.1.1 General . 22 6.1.2 Safety object dictionary 22 6.1.3 Safety process data object (SPDO) 22 6.1.4 Safety heartbeat (SHB) . 22 6.1.5 Safety delay monitoring (SDM) 23 6.2 Communication relation . 23 7 Safety communication layer protocol . 24 7.1 Safety PDU f
32、ormat . 24 7.1.1 General . 24 7.1.2 Safety process data objects (SPDO) . 24 7.1.3 Safety heartbeat (SHB) . 26 7.1.4 Safety PDUs embedded in a Type 22 PDU . 28 7.2 Safety communication layer management (SALMT) . . 28 7.3 Safety process data communication 30 7.4 Safety heartbeat 32 7.5 Delay monitorin
33、g . 33 8 Safety communication layer management . 34 8.1 Parameter handling . . 34 8.2 Safety object dictionary . 34 BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSI61784-3-18 IEC:2011 8.2.1 General . 34 8.2.2 Communication profi
34、le section . 35 8.2.3 Standardized device profile section 51 9 System requirements 51 9.1 Indicators and switches . 51 9.1.1 Indicator states and flash rates 51 9.1.2 Indicators 51 9.1.3 Switches 52 9.2 Installation guidelines . 52 9.3 Safety function response time . . 52 9.3.1 General . 52 9.3.2 De
35、termination of FSCP 18/1 time expectation behavior 53 9.3.3 Calculation of the worst case safety function response time 53 9.4 Duration of demands 53 9.5 Constraints for calculation of system characteristics . 53 9.5.1 Safety related constraints . 53 9.5.2 Probabilistic considerations . 55 9.6 Maint
36、enance . 55 9.7 Safety manual . 55 10 Assessment 55 Annex A (informative) Additional information for functional safety communication profiles of CPF 18 . . 57 Annex B (informative) Information for assessment of the functional safety communication profiles of CPF 18 . 58 Bibliography . 59 Table 1 Obj
37、ect definition 18 Table 2 Safety PDU element definition . . 18 Table 3 Communication errors and detection measures . 21 Table 4 SPDO PDU structure 25 Table 5 SHB request PDU structure . 26 Table 6 SHB response PDU structure . 27 Table 7 SHB safety communication layer state encoding . 27 Table 8 SALM
38、T commands . 28 Table 9 System states of SALMT state machine. . 29 Table 10 State transitions SALMT state machine . . 30 Table 11 System states of RxSPDO state machine . 31 Table 12 State transitions RxSPDO state machine 31 Table 13 Timeouts 32 Table 14 Safety object dictionary structure . . 34 Tabl
39、e 15 Objects of communication section . 35 Table 16 Device type . 36 Table 17 Safety ID 37 Table 18 Safety consumer heartbeat entry . 37 Table 19 Safety consumer heartbeat 38 BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSI61784
40、-3-18 IEC:2011 Table 20 Safety producer heartbeat parameter . 39 Table 21 Safety bus cycle times . 42 Table 22 SPDO timeout tolerance 43 Table 23 Receive SPDO communication parameter 43 Table 24 Transmit SPDO communication parameter . 46 Table 25 Mapping format . 49 Table 26 Receive SPDO mapping par
41、ameter . 49 Table 27 Transmit SPDO mapping parameter 50 Table 28 Indicator states definiton . 51 Table 29 STATUS indicator states . 51 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 FSCP 18/
42、1 system . . 19 Figure 4 FSCP 18/1 software architecture . 21 Figure 5 SPDO interaction model . 23 Figure 6 SHB interaction model . 23 Figure 7 Safety process data object structure 24 Figure 8 Safety heartbeat request structure . 26 Figure 9 Safety heartbeat response structure . 26 Figure 10 Safety
43、PDU for FSCP 18/1 embedded in a Type 22 CDC data section . 28 Figure 11 SALMT state machine . . 29 Figure 12 RxSPDO state machine . . 31 Figure 13 Heartbeat procedure . 32 Figure 14 Delay measurement principle 33 Figure 15 Parameter handling . 34 Figure 16 Safety response time components 52 Figure 1
44、7 Considered data fields for message size calculation 54 Figure 18 Residual error rate 55 BS EN 61784-3-18:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:45, Uncontrolled Copy, (c) BSI61784-3-18 IEC:2011 7 0 Introduction 0.1 General The IEC 61158 fieldbus standard together
45、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 standard
46、ized 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
47、 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. IEC 61000-
48、1-2Methodology EMC otherwise IEC 61326-3-1. bEN ratified. Figure 2 Relationships of IEC 61784-3 with other standards (process) Safety communication layers which are implemented as parts of safety-related systems according to IEC 61508 series provide the necessary confidence in the transportation of
49、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 fieldbus 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 f
