1、 IEC 61158-4-3 Edition 3.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Fieldbus specifications Part 4-3: Data-link layer protocol specification Type 3 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 4-3: Spcification du p
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20、munication networks Fieldbus specifications Part 4-3: Data-link layer protocol specification Type 3 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 4-3: Spcification du protocole de la couche liaison de donnes lments de type 3 INTERNATIONAL ELECTROTECHNICAL COMMI
21、SSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XH ICS 25.04.40; 35.100.20; 35.110 PRICE CODE CODE PRIX ISBN 978-2-8322-1721-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained thi
22、s publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 61158-4-3:2014 IEC 2014 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope . 9 General . 9 1.1Specifications 9 1.2Procedures 9 1.3Applicability . 9 1.4Conf
23、ormance . 10 1.5 2 Normative references . 10 3 Terms, definitions, symbols and abbreviations 10 Reference model terms and definitions 10 3.1Service convention terms and definitions . 12 3.2Common terms and definitions 13 3.3Additional Type 3 definitions 15 3.4Common symbols and abbreviations . 17 3.
24、5Type 3 symbols and abbreviations . 18 3.6 4 Common DL-protocol elements . 22 Frame check sequence . 22 4.1 5 Overview of the DL-protocol . 25 General . 25 5.1Overview of the medium access control and transmission protocol 25 5.2Transmission modes and DL-entity 26 5.3Service assumed from the PhL 31
25、5.4Operational elements 35 5.5Cycle and system reaction times . 50 5.6 6 General structure and encoding of DLPDUs, and related elements of procedure 53 DLPDU granularity 53 6.1Length octet (LE, LEr) . 54 6.2Address octet 54 6.3Control octet (FC) 57 6.4DLPDU content error detection 61 6.5DATA_UNIT 61
26、 6.6Error control procedures 62 6.7 7 DLPDU-specific structure, encoding and elements of procedure . 63 DLPDUs of fixed length with no data field 63 7.1DLPDUs of fixed length with data field . 65 7.2DLPDUs with variable data field length 67 7.3Token DLPDU . 68 7.4ASP DLPDU 69 7.5SYNCH DLPDU . 69 7.6
27、Time Event (TE) DLPDU 69 7.7Clock Value (CV) DLPDU 70 7.8Transmission procedures 70 7.9 8 Other DLE elements of procedure. 73 DL-entity initialization 73 8.1States of the media access control of the DL-entity . 74 8.2IEC 61158-4-3:2014 IEC 2014 3 Clock synchronization protocol 80 8.3 Annex A (normat
28、ive) DL-Protocol state machines 85 A.1 Overall structure 85 A.2 Variation of state machines in different devices . 86 A.3 DL Data Resource . 87 A.4 FLC / DLM . 91 A.4.1 Primitive definitions . 91 A.4.2 State machine description . 96 A.5 MAC 115 A.5.1 Primitive definitions . 115 A.5.2 State machine d
29、escription . 115 A.6 SRU 141 A.6.1 Overview . 141 A.6.2 Character send SM(CTX) . 142 A.6.3 Character receive SM (CRX) . 143 A.6.4 Timer-SM (TIM) . 143 A.6.5 Primitive definition of SRC . 144 A.6.6 State machine description . 145 Annex B (informative) Type 3 (synchronous): exemplary FCS implementatio
30、ns 160 Annex C (informative) Type 3: Exemplary token procedure and message transfer periods . 162 C.1 Procedure of token passing . 162 C.2 Examples for token passing procedure 163 C.3 Examples for message transfer periods asynchronous transmission . 168 Bibliography 170 Figure 1 Relationships of DLS
31、APs, DLSAP-addresses and group DL-addresses 14 Figure 2 Logical token-passing ring . 28 Figure 3 PhL data service for asynchronous transmission 32 Figure 4 Idle time T ID137 Figure 5 Idle time T ID2 (SDN, CS) . 38 Figure 6 Idle time T ID2 (MSRD) . 38 Figure 7 Slot time T SL1. 39 Figure 8 Slot time T
32、 SL2. 39 Figure 9 Slot time T SL1. 44 Figure 10 Slot time T SL2. 44 Figure 11 Token transfer period . 50 Figure 12 Message transfer period . 51 Figure 13 UART character . 53 Figure 14 Octet structure . 54 Figure 15 Length octet coding 54 Figure 16 Address octet coding 55 Figure 17 DAE/SAE octet in t
33、he DLPDU . 56 Figure 18 Address extension octet . 56 Figure 19 FC octet coding for send/request DLPDUs . 58 Figure 20 FC octet coding for acknowledgement or response DLPDUs 58 4 IEC 61158-4-3:2014 IEC 2014 Figure 21 FCS octet coding 61 Figure 22 Data field . 62 Figure 23 Ident user data . 62 Figure
34、24 DLPDUs of fixed length with no data field . 64 Figure 25 DLPDUs of fixed length with no data field . 65 Figure 26 DLPDUs of fixed length with data field . 66 Figure 27 DLPDUs of fixed length with data field . 66 Figure 28 DLPDUs with variable data field length . 67 Figure 29 DLPDUs with variable
35、data field length . 68 Figure 30 Token DLPDU 68 Figure 31 Token DLPDU 69 Figure 32 Send/request DLPDU of fixed length with no data 70 Figure 33 Token DLPDU and send/request DLPDU of fixed length with data 71 Figure 34 Send/request DLPDU with variable data field length . 71 Figure 35 Send/request DLP
36、DU of fixed length with no data 72 Figure 36 Token DLPDU and send/request DLPDU of fixed length with data 72 Figure 37 Send/request DLPDU with variable data field length . 73 Figure 38 DL-state-diagram . 75 Figure 39 Overview of clock synchronization 81 Figure 40 Time master state machine 82 Figure
37、41 Time receiver state machine 83 Figure 42 Clock synchronization . 84 Figure A.1 Structuring of the protocol machines . 86 Figure A.2 Structure of the SRU Machine . 142 Figure B.1 Example of FCS generation for Type 3 (synchronous) 160 Figure B.2 Example of FCS syndrome checking on reception for Typ
38、e 3 (synchronous) . 160 Figure C.1 Derivation of the token holding time (T TH ) 163 Figure C.2 No usage of token holding time (T TH ) . 164 Figure C.3 Usage of token holding time (T TH ) for message transfer (equivalence between T THof each Master station) 165 Figure C.4 Usage of token holding time
39、T TH ) in different working load situations . 167 Table 1 FCS length, polynomials and constants by Type 3 synchronous 23 Table 2 Characteristic features of the fieldbus data-link protocol 25 Table 3 Transmission function code . 59 Table 4 FCB, FCV in responder . 60 Table 5 Operating parameters . 73
40、 Table A.1 Assignment of state machines 87 Table A.2 Data resource 88 Table A.3 Primitives issued by DL-User to FLC 91 Table A.4 Primitives issued by FLC to DL-User 92 Table A.5 Primitives issued by DL-User to DLM . 94 Table A.6 Primitives issued by DLM to DL-User . 94 IEC 61158-4-3:2014 IEC 2014 5
41、Table A.7 Parameters used with primitives exchanged between DL-User and FLC . 95 Table A.8 Parameters used with primitives exchanged between DL-User and DLM 95 Table A.9 FLC/DLM state table 96 Table A.10 FLC / DLM function table 108 Table A.11 Primitives issued by DLM to MAC. 115 Table A.12 Primitiv
42、es issued by MAC to DLM. 115 Table A.13 Parameters used with primitives exchanged between DLM and MAC . 115 Table A.14 Local MAC variables 116 Table A.15 MAC state table . 117 Table A.16 MAC function table . 137 Table A.17 Primitives issued by DLM to SRC . 144 Table A.18 Primitives issued by SRC to
43、DLM . 144 Table A.19 Primitives issued by MAC to SRC. 144 Table A.20 Primitives issued by SRC to MAC. 145 Table A.21 Parameters used with primitives exchanged between MAC and SRC . 145 Table A.22 FC structure . 145 Table A.23 Local variables of SRC . 146 Table A.24 SRC state table 147 Table A.25 SRC
44、 functions 159 6 IEC 61158-4-3:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL COMMUNICATION NETWORKS FIELDBUS SPECIFICATIONS Part 4-3: Data-link layer protocol specification Type 3 elements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organizat
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