IEC_60870-5-101ed2.0en.pdf

INTERNATIONALSTANDARDIEC60870-5-101Second edition2003-02Telecontrol equipment and systems Part 5-101:Transmission protocols Companion standard for basic telecontrol tasksMatriels et systmes de tlconduite Partie 5-101:Protocoles de transmission Norme daccompagnement pour les tches lmentairesde tlconduiteReference numberIEC 60870-5-101:2003(E)Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe 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,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(http:/www.iec.ch/searchpub/cur_fut.htm)enables you to search by a variety of criteria including text searches,technicalcommittees and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just Published This summary of recently issued publications(http:/www.iec.ch/online_news/justpub/jp_entry.htm)is also available by email.Please contact the CustomerService Centre(see below)for further information.Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00INTERNATIONALSTANDARDIEC60870-5-101Second edition2003-02Telecontrol equipment and systems Part 5-101:Transmission protocols Companion standard for basic telecontrol tasksMatriels et systmes de tlconduite Partie 5-101:Protocoles de transmission Norme daccompagnement pour les tches lmentairesde tlconduite IEC 2003 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,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.chXHFor price,see current cataloguePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission 2 60870-5-101 IEC:2003(E)CONTENTSFOREWORD.71Scope and object.82Normative references.83Terms and definitions.94General rules.104.1Protocol structure.104.2Physical layer.114.3Link layer.124.4Application layer.124.5User process.125Physical layer.125.1Selections from ISO and ITU-T standards.125.1.1ITU-T V.24 or ITU-T V.28 unbalanced interchange circuit.135.1.2ITU-T X.24 or ITU-T X.27 balanced interchange circuit.145.1.3Interfaces to switched communication networks.145.1.4Other compatible interfaces.146Link layer.146.1Selections from IEC 60870-5-1:Transmission frame formats.146.2Selections from IEC 60870-5-2:Link transmission procedures.156.2.1State transition diagrams.156.2.2Definitions of time out interval for repeated frame transmission.246.2.3The use of the different resets.267Application layer and user process.277.1Selections from IEC 60870-5-3:General structure of application data.277.2Selections from IEC 60870-5-4:Definition and coding of applicationinformation elements.297.2.1Type identification.297.2.2Variable structure qualifier.337.2.3Cause of transmission.367.2.4COMMON ADDRESS OF ASDUs.417.2.5INFORMATION OBJECT ADDRESS.427.2.6INFORMATION ELEMENTS.447.3Definition and presentation of the specific ASDUs.587.3.1ASDUs for process information in monitor direction.597.3.2ASDUs for process information in control direction.987.3.3ASDUs for system information in monitor direction.1037.3.4ASDUs for system information in control direction.1047.3.5ASDUs for parameter in control direction.1097.3.6ASDUs for file transfer.1137.4Selections from IEC 60870-5-5:Basic application functions.1207.4.1Selections from station initialization.1217.4.2Selections from data acquisition by polling.1217.4.3Selections from cyclic data transmission.1217.4.4Selections from acquisition of events.1217.4.5Selections from station interrogation,outstation interrogation.1217.4.6Selections from clock synchronization.12560870-5-101 IEC:2003(E)3 7.4.7Selections from command transmission