1、BSI Standards PublicationIndustrial communication networks Fieldbus specificationsPart 3-12: Data-link layer service definition Type 12 elementsBS EN 61158-3-12:2014National forewordThis British Standard is the UK implementation of EN 61158-3-12:2014. It isidentical to IEC 61158-3-12:2014. It supers
2、edes BS EN 61158-3-12:2012which is withdrawn.The UK participation in its preparation was entrusted to Technical Com-mittee AMT/7, Industrial communications: process measurement andcontrol, including fieldbus.A list of organizations represented on this committee can be obtained onrequest to its secre
3、tary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 79365 3ICS 25.040.40; 35.100.20; 35.240.50Compliance with a Bri
4、tish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2014.Amendments issued since publicationDate Text affectedBRITISH STANDARDBS EN 61158-3-12:2014EUROPEAN STANDARD NORME EUROPE
5、NNE EUROPISCHE NORM EN 61158-3-12 October 2014 ICS 25.040.40; 35.100.20; 35.110 Supersedes EN 61158-3-12:2012 English Version Industrial communication networks - Fieldbus specifications - Part 3-12: Data-link layer service definition - Type 12 elements (IEC 61158-3-12:2014) Rseaux de communication i
6、ndustriels - Spcifications des bus de terrain - Partie 3-12: Dfinition des services de la couche liaison de donnes - lments de type 12 (CEI 61158-3-12:2014) Industrielle Kommunikationsnetze - Feldbusse - Teil 3-12: Dienstfestlegungen des Data Link Layer (Sicherungsschicht) - Typ 12-Elemente (IEC 611
7、58-3-12:2014) This European Standard was approved by CENELEC on 2014-09-17. 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 bi
8、bliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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
9、responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre 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,
10、Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for E
11、lectrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Member
12、s. Ref. No. EN 61158-3-12:2014 E BS EN 61158-3-12:2014EN 61158-3-12:2014 - 2 - Foreword The text of document 65C/759/FDIS, future edition 3 of IEC 61158-3-12, prepared by SC 65C “Industrial networks“ of IEC/TC 65 “Industrial-process measurement, control and automation“ was submitted to the IEC-CENEL
13、EC parallel vote and approved by CENELEC as EN 61158-3-12:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-06-17 latest date by which the national standards con
14、flicting with the document have to be withdrawn (dow) 2017-09-17 This document supersedes EN 61158-3-12:2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or
15、all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association. Endorsement notice The text of the International Standard IEC 61158-3-12:2014 was approved by CENELEC as a European Standard without any modifi
16、cation. BS EN 61158-3-12:2014- 3 - EN 61158-3-12:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applica
17、tion. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NO
18、TE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year ISO/IEC 7498-1 - Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model - - ISO/IEC 7498-3 -
19、Information technology - Open Systems Interconnection - Basic Reference Model: Naming and addressing - - ISO/IEC 8802-3 - Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 3: Carrier sense multip
20、le access with collision detection (CSMA/CD) access method and physical layer specifications - - ISO/IEC 10731 - Information technology - Open Systems Interconnection - Basic Reference Model - Conventions for the definition of OSI services - - IEEE 802.1D - IEEE Standard for local and metropolitan a
21、rea networks - Media Access Control (MAC) Bridges - - BS EN 61158-3-12:2014 2 IEC 61158-3-12:2014 IEC 2014 CONTENTS INTRODUCTION . 6 1 Scope . 7 1.1 General . 7 1.2 Specifications 7 1.3 Conformance . 7 2 Normative references . 8 3 Terms, definitions, symbols, abbreviations and conventions . 8 3.1 Re
22、ference 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 Data-link layer services and concepts . 15 4.1 Operating principle 15 4.2 Topology . 16 4.3 Data-link lay
23、er 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 classification 22 4.10 Structure of the communication layer in the slave 23 5 Communication services . 24 5.1 O
24、verview . 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 Write local . 39 6.3 Event local 40 BS EN 61158-3-12:2014IEC 61158-3-12:2014 IEC 2014 3 Figure 1 Mapping of l
25、ogical 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 Addressing mode overview 20 Figure 6 Fieldbus memory management unit overview . 22
26、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 read (APRD) . 25 Table 2 Configured-addresse physical read (FPRD) . 25 Table 3 Broadca
27、st 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 Table 9 Auto-increment physical read/write (APRW) 30 Table 10 Configured-address ph
28、ysical 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 / multiple write (FRMW) 32 Table 15 Provide network variable (PNV) . 33 Table 16 Mail
29、box 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 BS EN 61158-3-12:2014 6 IEC 61158-3-12:2014 IEC 2014 INTRODUCTION This part of IEC 61158 is one of a series produced to facilitate the interconnection
30、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 layer of the OSI Basic Refere
31、nce Model to the layer immediately above. Thus, the data-link layer service defined in this standard is a conceptual architectural service, independent of administrative and implementation divisions. BS EN 61158-3-12:2014IEC 61158-3-12:2014 IEC 2014 7 INDUSTRIAL COMMUNICATION NETWORKS FIELDBUS SPECI
32、FICATIONS Part 3-12: Data-link layer service definition Type 12 elements 1 Scope 1.1 General This part of IEC 61158 provides common elements for basic time-critical messaging communications between devices in an automation environment. The term “time-critical” is used to represent the presence of a
33、time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human
34、 life. This standard defines in an abstract way the externally visible service provided by the Type 12 fieldbus data-link layer in terms of a) the primitive actions and events of the service; b) the parameters associated with each primitive action and event, and the form which they take; c) the inte
35、rrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to the Type 12 fieldbus application layer at the boundary between the application and data-link layers of the fieldbus reference model; systems management at the
36、 boundary between the data-link layer and systems management of the fieldbus reference model. 1.2 Specifications The principal objective of this standard is to specify the characteristics of conceptual data-link layer services suitable for time-critical communications, and thus supplement the OSI Ba
37、sic Reference Model in guiding the development of data-link protocols for time-critical communications. A secondary objective is to provide migration paths from previously-existing industrial communications protocols. This specification may be used as the basis for formal DL-Programming-Interfaces.
38、Nevertheless, it is not a formal programming interface, and any such interface will need to address implementation issues not covered by this specification, including a) the sizes and octet ordering of various multi-octet service parameters, and b) the correlation of paired request and confirm, or i
39、ndication and response, primitives. 1.3 Conformance This standard does not specify individual implementations or products, nor does it constrain the implementations of data-link entities within industrial automation systems. There is no conformance of equipment to this data-link layer service defini
40、tion standard. Instead, conformance is achieved through implementation of the corresponding data-link protocol that fulfils the Type 12 data-link layer services defined in this standard. BS EN 61158-3-12:2014 8 IEC 61158-3-12:2014 IEC 2014 2 Normative references The following documents, in whole or
41、in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE All parts of the IEC 61158 series, as w
42、ell as IEC 61784-1 and IEC 61784-2 are maintained simultaneously. Cross-references to these documents within the text therefore refer to the editions as dated in this list of normative references. ISO/IEC 7498-1, Information technology Open Systems Interconnection Basic Reference Model: The Basic Mo
43、del ISO/IEC 7498-3, Information technology Open Systems Interconnection Basic Reference Model: Naming and addressing ISO/IEC 8802-3, Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Carrier sense mul
44、tiple access with collision detection (CSMA/CD) access method and physical layer specifications ISO/IEC 10731, Information technology Open Systems Interconnection Basic Reference Model Conventions for the definition of OSI services IEEE 802.1D, IEEE Standard for Local and metropolitan area networks
45、Media Access Control (MAC) Bridges; available at 3 Terms, definitions, symbols, abbreviations and conventions For the purposes of this document, the following terms, definitions, symbols, abbreviations and conventions apply. 3.1 Reference model terms and definitions This standard is based in part on
46、 the concepts developed in ISO/IEC 7498-1 and ISO/IEC 7498-3 and makes use of the following terms defined therein. 3.1.1 DL-address 7498-3 3.1.2 DL-connectionless-mode transmission 7498-1 3.1.3 correspondent (N)-entities correspondent DL-entities (N=2) correspondent Ph-entities (N=1) 7498-1 3.1.4 DL
47、-duplex-transmission 7498-1 3.1.5 (N)-entity DL-entity (N=2) Ph-entity (N=1) 7498-1 3.1.6 (N)-layer DL-layer (N=2) Ph-layer (N=1) 7498-1 3.1.7 layer-management 7498-1 3.1.8 peer-entities 7498-1 BS EN 61158-3-12:2014IEC 61158-3-12:2014 IEC 2014 9 3.1.9 primitive name 7498-3 3.1.10 DL-protocol 7498-1
48、3.1.11 DL-protocol-data-unit 7498-1 3.1.12 DL-relay 7498-1 3.1.13 reset 7498-1 3.1.14 responding-DL-address 7498-3 3.1.15 routing 7498-1 3.1.16 segmenting 7498-1 3.1.17 (N)-service DL-service (N=2) Ph-service (N=1) 7498-1 3.1.18 (N)-service-access-point DL-service-access-point (N=2) Ph-service-acces
49、s-point (N=1) 7498-1 3.1.19 DL-service-data-unit 7498-1 3.1.20 DL-simplex-transmission 7498-1 3.1.21 DL-subsystem 7498-1 3.1.22 systems-management 7498-1 3.1.23 DLS-user 7498-1 3.1.24 DLS-user-data 7498-1 3.2 Service convention terms and definitions This standard also makes use of the following terms defined in ISO/IEC 10731 as they apply to the data-link layer:
