1、 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 pu
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7、 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 Fo
8、r 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
9、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.
10、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
11、 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
12、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 Fu
13、nctional 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
14、).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,H
15、MIs)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 mark
16、ings.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
