1、 IEC 61784-3-6 Edition 2.0 2010-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Profiles Part 3-6: Functional safety fieldbuses Additional specifications for CPF 6 Rseaux de communication industriels Profils Partie 3-6: Bus de terrain de scurit fonctionnelle Spcifica
2、tions supplmentaires pour CPF 6 IEC 61784-3-6:2010 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mecha
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16、ion ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61784-3-6 Edition 2.0 2010-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Profiles Part 3-6: Functional safety fi
17、eldbuses Additional specifications for CPF 6 Rseaux de communication industriels Profils Partie 3-6: Bus de terrain de scurit fonctionnelle Spcifications supplmentaires pour CPF 6 INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XC ICS 25.040.40; 35.100.05 PRICE C
18、ODE CODE PRIX ISBN 978-2-88912-812-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colour inside 2 61784-3-6 IEC:2010 CONTENTS FOREWORD . 7 0 Introduction 9 0.1 General . 9 0.2 Patent declaration . 11 1 Scope . 12
19、2 Normative references . 12 3 Terms, definitions, symbols, abbreviated terms and conventions 13 3.1 Terms and definitions 13 3.1.1 Common terms and definitions 13 3.1.2 CPF 6: Additional terms and definitions . 18 3.2 Symbols and abbreviated terms. 18 3.2.1 Common symbols and abbreviated terms 18 3.
20、2.2 CPF 6: Additional symbols and abbreviated terms . 19 3.3 Conventions 20 4 Overview of FSCP 6/7 (INTERBUS Safety) . 20 4.1 General . 20 4.2 Technical overview 20 4.3 Functional Safety Communication Profile 6/7 . 21 5 General 22 5.1 External documents providing specifications for the profile 22 5.
21、2 Safety functional requirements 22 5.3 Safety measures . 22 5.3.1 General . 22 5.3.2 Sequence number . 23 5.3.3 Time stamp . 23 5.3.4 Time expectation . 23 5.3.5 Acknowledgement . 23 5.3.6 Connection authentication . 23 5.3.7 Distinction between safety relevant messages and non-safety relevant mess
22、ages different data integrity assurance system 24 5.3.8 Parameterized shutdown time 24 5.4 Safety communication layer structure 24 5.4.1 Decomposition process 24 5.4.2 Definition of the safety function of the safety communication system . 25 5.4.3 Decomposition of the safety function of a safety com
23、munication system into function blocks 26 5.4.4 Assignment of the function blocks to subsystems 27 5.4.5 Safety requirements and safety integrity requirements . 30 5.4.6 Specification of the safe state 30 5.4.7 Response to a fault . 31 5.4.8 Stop category 33 5.4.9 Safe Transmission . 33 5.5 Relation
24、ships with FAL (and DLL, PhL) . 33 5.5.1 Overview . 33 5.5.2 Use of the AR-US service to initiate and parameterize . 34 5.5.3 Use of the AR-US service to transmit safety data 35 61784-3-6 IEC:2010 3 5.5.4 Use of the AR-US service to abort . 36 5.5.5 Data types . 36 6 Safety communication layer servi
25、ces 36 6.1 General . 36 6.2 Transmission principle for safety messages between SCLM and SCLS . 36 6.3 Function block requirements 37 6.3.1 Input Safe Data function block . 37 6.3.2 Output Safe Data function block 37 6.3.3 Safe Calculation function block 37 6.4 Context management 38 6.4.1 Initiate se
26、rvice . 38 6.4.2 Abort service . 39 6.5 Function block parameterization 40 6.5.1 Send application parameter service . 40 6.5.2 Send application parameter ID service 41 6.5.3 Parameterize device service 42 6.6 Safe Process Data Mode . 42 6.6.1 Transmit-Safety-Data 42 6.6.2 Set-Diagnostic-Data service
27、 44 6.6.3 Set-Acknowledgement-Data service 44 7 Safety communication layer protocol 45 7.1 Safety PDU format 45 7.1.1 Structure of safety messages 45 7.1.2 Description of the polynomial used 46 7.1.3 Structure of safety messages for safe parameterization and idle . 46 7.1.4 Structure of safety messa
28、ges for the transmission of safety data . 52 7.1.5 Messages for synchronization 53 7.1.6 Structure of safety messages for aborting connections 54 7.2 State description . 54 7.2.1 SCLM and SCLS state machines . 54 7.2.2 Initiate . 56 7.2.3 Parameterization . 57 7.2.4 Process data mode 61 7.2.5 Proces
29、s data mode with diagnostic data transmission . 66 7.2.6 Process data mode with Acknowledgement-Data transmission 66 7.2.7 Connection aborted . 67 7.3 Abort . 67 7.3.1 Connection abort in the event of an error detected by the SCLM . 67 7.3.2 Abort of all connections in the event of an error detected
30、 by the SCLS . 68 7.3.3 Abort of all connections in the event of an error detected by the SCLM 70 8 Safety communication layer management . 71 8.1 General . 71 8.2 Requirements of safety communication layer management 71 8.3 Set-Safety-Configuration service . 71 8.4 Start IEC 61158 Type 8 service .
31、73 9 System requirements 73 9.1 Indicators and switches . 73 4 61784-3-6 IEC:2010 9.2 Installation guidelines 73 9.3 Safety function response time . 73 9.3.1 General . 73 9.3.2 Calculation of the parameterized shutdown time 74 9.4 Duration of demands . 78 9.5 Constraints for calculation of system ch
32、aracteristics 78 9.5.1 System characteristics . 78 9.5.2 Calculation of the number of telegrams per second . 78 9.6 Maintenance 79 9.7 Safety manual . 80 10 Assessment 80 Annex A (informative) Additional information for functional safety communication profiles of CPF 6 . 81 Annex B (informative) Inf
33、ormation for assessment of the functional safety communication profiles of CPF 6 82 Bibliography 83 Table 1 Overview of profile identifier usable for FSCP 6/7 22 Table 2 Selection of the various measures for possible errors 23 Table 3 List of function blocks and subsystems 27 Table 4 Signal flow bet
34、ween the function blocks 29 Table 5 Initiate service parameters 38 Table 6 Parameterization mode and related services . 39 Table 7 Abort service parameters 39 Table 8 Abort of a point-to-point connection by the SRP or SRC 40 Table 9 Send application parameter service . 40 Table 10 Send application p
35、arameter ID service 41 Table 11 Parameterize device parameters . 42 Table 12 Transmit-Safety-Data service parameters 43 Table 13 Set-Diagnostic-Data service parameters 44 Table 14 Set-Acknowledgement-Data service parameters 45 Table 15 Parameter ID . 48 Table 16 Block 0: Device ID . 48 Table 17 Bloc
36、k 1: Parameter record ID 49 Table 18 Block 2: Application parameter 50 Table 19 TIME encoding 52 Table 20 Abort_Info: Connection abort in the event of an error detected by the SCLM . 68 Table 21 Abort_Info: Abort of all connections in the event of an error detected by the SCLS 69 Table 22 Abort_Info
37、: Abort of all connections in the event of an error detected by the SCLM . 71 Table 23 Set-Safety-Configuration service . 72 Table 24 Error_Info 72 Table 25 Calculation of tIB . 77 Table 26 Calculation of tSRC . 78 Table 27 Calculation of tPST . 78 61784-3-6 IEC:2010 5 Figure 1 Relationships of IEC
38、61784-3 with other standards (machinery) . 9 Figure 2 Relationships of IEC 61784-3 with other standards (process) . 10 Figure 3 FSCP 6/7 communication preconditions . 21 Figure 4 Example of a safety function 25 Figure 5 Decomposition of safety function into function blocks . 26 Figure 6 Overview of
39、the results of the decomposition process 28 Figure 7 Signal flow between the function blocks . 28 Figure 8 Interfaces between the safety devices within the safety communication system 29 Figure 9 Signal flow and safe states 31 Figure 10 Mapping of the Safe Transmission function block . 33 Figure 11
40、Relationship between SCL and the other layers of IEC 61158 Type 8. 34 Figure 12 Use of the AR-US service to initiate and parameterize . 35 Figure 13 Use of the AR-US service to transmit safety data . 35 Figure 14 Use of the AR-US service to abort 36 Figure 15 Use of the AR-US service to abort 36 Fig
41、ure 16 Structure of the safety PDU 45 Figure 17 Integration of safety data and deterministic remedial measures in the summation frame 46 Figure 18 Write_Parameter_Byte_Req message 47 Figure 19 Read_Parameter_Byte_Req message 47 Figure 20 Parameter_Byte_Con message 47 Figure 21 Set_Safety_Connection_
42、ID_Req message . 50 Figure 22 Set_Safety_Connection_ID_Con message of safety slaves 50 Figure 23 Parameter_Idle_Req 51 Figure 24 Parameter_Idle_Con 51 Figure 25 Parameter_Check_Con 51 Figure 26 Parameter_Loc_ID_Changed_Con . 51 Figure 27 Transmit Safety Data Message . 52 Figure 28 Sync_a message of
43、the SCLM 53 Figure 29 Req_b message of the SCLM . 53 Figure 30 Req_c message of the SCLM . 53 Figure 31 Req_d message of the SCLM . 54 Figure 32 Abort_Connection message . 54 Figure 33 Safety-Slave_Error message 54 Figure 34 SCLM state machine 55 Figure 35 SCLS state machine . 55 Figure 36 Initiate
44、sequence 56 Figure 37 Send Application Parameter sequence . 58 Figure 38 Send Application Parameter ID sequence 59 Figure 39 Parameterize device sequence . 60 Figure 40 Simultaneous transmission of safety data to the safety slaves 61 Figure 41 Use of the sequence number in the SCLM and SCLS . 62 6 6
45、1784-3-6 IEC:2010 Figure 42 Startup and error-free operation . 63 Figure 43 Resynchronization during operation . 64 Figure 44 Invalid CRC 24 checksum detected by the SCLS 65 Figure 45 Process data mode with diagnostic data transmission 66 Figure 46 Process data mode with Acknowledgement-Data transmi
46、ssion . 67 Figure 47 Error when initiating a connection 68 Figure 48 Error at an SCLS when aborting all connections . 69 Figure 49 Abort of all connections in the event of an error detected by the SCLM 70 Figure 50 Overview of the shutdown time . 75 61784-3-6 IEC:2010 7 INTERNATIONAL ELECTROTECHNICA
47、L COMMISSION _ INDUSTRIAL COMMUNICATION NETWORKS PROFILES Part 3-6: Functional safety fieldbuses Additional specifications for CPF 6 FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IE
48、C 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. Int
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