IEC_PAS_62406-2005.pdf

PUBLICLY AVAILABLE SPECIFICATION IEC PAS 62406 First edition2005-08 Real-time Ethernet TCnet(Time-Critical Control Network)Reference number IEC/PAS 62406:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.PUBLICLY AVAILABLE SPECIFICATIONIEC PAS 62406 First edition2005-08 Real-time Ethernet TCnet(Time-Critical Control Network)PRICE CODE IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch XG For price,see current catalogue Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 PAS 62406 IEC:2005(E)CONTENTS FOREWORD.9 1 Introduction.11 1.1 General.11 1.2 Nomenclature for references within this PAS.12 2 Scope.12 2.1 Field of applications.12 2.2 Scope and objectives.13 3 Normative references.14 4 Terms and definitions.14 5 Symbols and abbreviations.14 6 Data Link Layer Service definitions.15 6.1 Introduction.15 6.2 Scope.15 6.2.1 Overview.15 6.2.2 Specifications.16 6.2.3 Conformance.16 6.3 Void.17 6.4 Terms and definitions.17 6.5 Symbols and abbreviations.18 6.5.1 Common symbols and abbreviations.18 6.5.2 DLC DL-connection.18 6.5.3 RTE-TCnet:Additional symbols and abbreviations.18 6.6 Conventions.19 6.6.1 General conventions.19 6.6.2 Additional convention.20 6.7 Data link service and concept.20 6.7.1 General description of services.20 6.7.2 Time critical cyclic data service.26 6.7.3 Detail description of Sporadic Message Data service.29 6.8 DL-management services.31 6.8.1 General.31 6.8.2 Facilities of the DL-Management service.31 6.8.3 Service of the DL-management.31 Overview of interactions.33 6.8.4 Detail specification of service and interactions.34 7 Data Link Layer Protocol specification.44 7.1 Introduction.44 7.2 Scope.45 7.2.1 Overview.45 7.2.2 Specifications.45 7.2.3 Procedures.45 7.2.4 Applicability.46 7.2.5 Conformance.46 7.3 Void.46 7.4 Terms and definitions.46 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.PAS 62406 IEC:2005(E)3 7.5 Symbols and abbreviations.47 7.5.1 Common symbols and abbreviations.47 7.5.2 RTE-TCnet:Additional symbols and abbreviations.48 7.6 Overview of the DL-protocol.49 7.6.1 Overview of the media access control.49 7.6.2 Service assumed from the PhL.50 7.6.3 DLL architecture.51 7.6.4 Access Control Machine and schedule support functions.52 7.6.5 Local parameters,variable,counters,timers.53 7.7 General structure and encoding of PhIDUs and DLPDU and related elements of procedure.61 7.7.1 Overview.61 7.7.2 PhIDU structure and encoding.61 7.7.3 Common MAC frame str