1、 IEC 61158-3-12 Edition 3.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Fieldbus specifications Part 3-12: Data-link layer service definition Type 12 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 3-12: Dfinition des ser
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20、Industrial communication networks Fieldbus specifications Part 3-12: Data-link layer service definition Type 12 elements Rseaux de communication industriels Spcifications des bus de terrain Partie 3-12: Dfinition des services de la couche liaison de donnes lments de type 12 INTERNATIONAL ELECTROTECH
21、NICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 25.040.40; 35.100.20; 35.110 PRICE CODE CODE PRIX ISBN 978-2-8322-1713-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you o
22、btained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 61158-3-12:2014 IEC 2014 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 1.1 General . 7 1.2 Specifications 7 1.3 Conforman
23、ce . 7 2 Normative references . 8 3 Terms, definitions, symbols, abbreviations and conventions . 8 3.1 Reference model terms and definitions 8 3.2 Service convention terms and definitions . 9 3.3 Data-link service terms and definitions 10 3.4 Symbols and abbreviations 13 3.5 Common conventions 14 4
24、Data-link layer services and concepts . 15 4.1 Operating principle 15 4.2 Topology . 16 4.3 Data-link layer overview 16 4.4 Error detection overview 17 4.5 Parameter and process data handling introduction 17 4.6 Node reference model . 18 4.7 Operation overview . 19 4.8 Addressing 20 4.9 Slave classi
25、fication 22 4.10 Structure of the communication layer in the slave 23 5 Communication services . 24 5.1 Overview . 24 5.2 Read services . 24 5.3 Write services . 27 5.4 Combined read/write services . 29 5.5 Network services . 33 5.6 Mailbox . 34 6 Local interactions . 38 6.1 Read local . 38 6.2 Writ
26、e local . 39 6.3 Event local 40 IEC 61158-3-12:2014 IEC 2014 3 Figure 1 Mapping of logical data in an Ethernet frame consisting of a single Type 12 DLPDU . 17 Figure 2 Type 12 data-link reference model . 18 Figure 3 Type 12 segments in open mode 19 Figure 4 Type 12 segment in direct mode 19 Figure 5
27、 Addressing mode overview 20 Figure 6 Fieldbus memory management unit overview . 22 Figure 7 Layering of communication . 23 Figure 8 Flow of Type 12 service primitives . 24 Figure 9 Successful mailbox write sequence 35 Figure 10 Successful mailbox read sequence. 35 Table 1 Auto-increment physical re
28、ad (APRD) . 25 Table 2 Configured-addresse physical read (FPRD) . 25 Table 3 Broadcast read (BRD) . 26 Table 4 Logical read (LRD) 27 Table 5 Auto-increment physical write (APWR) 27 Table 6 Configured-address physical write (FPWR) . 28 Table 7 Broadcast write (BWR) 28 Table 8 Logical write (LWR) . 29
29、 Table 9 Auto-increment physical read/write (APRW) 30 Table 10 Configured-address physical read/write (FPRW) 30 Table 11 Broadcast read/write (BRW) 31 Table 12 Logical read/write (LRW) . 31 Table 13 Auto-increment physical read / multiple write (ARMW) . 32 Table 14 Configured-address physical read /
30、 multiple write (FRMW) 32 Table 15 Provide network variable (PNV) . 33 Table 16 Mailbox write . 36 Table 17 Mailbox read update 37 Table 18 Mailbox read . 38 Table 19 Read local . 39 Table 20 Write local . 39 Table 21 Event local 40 4 IEC 61158-3-12:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMI
31、SSION _ INDUSTRIAL COMMUNICATION NETWORKS FIELDBUS SPECIFICATIONS Part 3-12: Data-link layer service definition Type 12 elements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC Na
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42、. Attention is drawn to the fact that the use of the associated protocol type is restricted by its intellectual-property-right holders. In all cases, the commitment to limited release of intellectual-property-rights made by the holders of those rights permits a layer protocol type to be used with ot
43、her layer protocols of the same type, or in other type combinations explicitly authorized by its intellectual-property-right holders. NOTE Combinations of protocol types are specified in IEC 61784-1 and IEC 61784-2. International Standard IEC 61158-3-12 has been prepared by subcommittee 65C: Industr
44、ial networks of IEC technical committee 65: Industrial-process measurement, control and automation. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. The main changes with respect to the previous edition are listed below: IEC
45、 61158-3-12:2014 IEC 2014 5 Editorial improvements for clarification. The text of this standard is based on the following documents: FDIS Report on voting 65C/759/FDIS 65C/769/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the a
46、bove table. This publication has been drafted in accordance with ISO/IEC Directives, Part 2. A list of all parts of the IEC 61158 series, published under the general title Industrial communication networks Fieldbus specifications, can be found on the IEC web site. The committee has decided that the
47、contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT
48、The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 IEC 61158-3-12:2014 IEC 2014 INTRODUCTION This part of
49、 IEC 61158 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the “three-layer” fieldbus reference model described in IEC 61158-1. Throughout the set of fieldbus standards, the term “service” refers to the abstract capability provided by one laye
