IEC_61131-2-2007.pdf

INTERNATIONAL STANDARD IEC61131-2 Third edition2007-07 Programmable controllers Part 2:Equipment requirements and tests Reference number IEC 61131-2:2007(E)THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,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 either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 INTERNATIONAL STANDARD IEC61131-2 Third edition2007-07 Programmable controllers Part 2:Equipment requirements and tests XF For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission 2 61131-2 IEC:2007(E)CONTENTS FOREWORD.10 INTRODUCTION.12 1 General.13 1.1 Scope and object.13 1.2 Compliance with this standard.14 1.3 Normative references.14 2 Type tests.17 2.1 Equipment to be tested(equipment under test/EUT).17 2.2 Special features for immunity and EMC tests.18 2.3 Withstand test conditions.19 2.4 Verification procedure.19 2.5 Requirements for test programmes and proper functioning verification procedures(PFVPs)to be provided by the manufacturer.19 2.6 General conditions for tests.20 3 Terms and definitions.20 4 Normal service conditions and requirements.28 4.1 Climatic conditions and requirements.28 4.1.1 Operating ambient air temperature.28 4.1.2 Relative humidity.28 4.1.3 Altitude.28 4.1.4 Pollution degree.29 4.2 Mechanical service conditions and requirements.29 4.2.1 Vibrations.29 4.2.2 Shock.29 4.2.3 Free falls(portable and hand-held equipment).30 4.3 Transport and storage conditions and requirements.30 4.3.1 Temperature.30 4.3.2 Relative humidity.30 4.3.3 Altitude.30 4.3.4 Free falls(PLC units in manufacturers original packaging).31 4.3.5 Other conditions.31 4.4 Electrical service conditions and requirements.31 4.4.1 AC and d.c.equipment power supply.31 4.4.2 Overvoltage category,control of transient overvoltages.31 4.4.3 Non-periodic overvoltages.31 4.5 Special conditions and requirements.31 5 Functional requirements.31 5.1 Functional power supply and memory back-up requirements.33 5.1.1 AC and d.c.power supply.33 5.1.2 Memory back-up.34 5.2 Digital I/Os.34 5.2.1 Digital inputs(current sinking).35 5.2.2 Digital outputs for alternating currents(current sourcing).37 5.2.3 Digital outputs for direct current(current sourcing).40 61131-2 IEC:2007(E)3 5.3 Analogue I/Os.41 5.3.1 Analogue inputs.41 5.3.2 Analogue outputs.41 5.4 Communication interface requirements.42 5.5 Main processing unit(s)and memory(ies)of the PLC-system requirements.42 5.6 Remote input/output stations(RIOSs)requirements.42 5.7 Peripherals(PADTs,TEs,HMIs)requirements.42 5.8 PLC-system self-tests and diagnostics requirements.43 5.9 Functional earthing.43 5.10 Mounting requirements.43 5.11 General marking requirements.44 5.11.1 Functional identifications.44 5.11.2 Module location and module identifications.44 5.11.3 Functional earth terminals markings.44 5.12 Requirements for normal service and functional type tests and verifications.44 5.13 Requirements for information on normal service and function.44 6 Normal service and functional type tests and verifications.44 6.1 Climatic tests.44 6.2 Dry-heat and cold withstand tests.45 6.2.1 Variation of temperature.46 6.2.2 Cyclic damp heat withstand test.47 6.3 Mechanical tests.48 6.3.1 Vibration(type test associated with normal service conditions).48 6.3.2 Shock(type test associated with norm