IEC TR 61131-4:2004
(Main)Programmable controllers - Part 4: User guidelines
Programmable controllers - Part 4: User guidelines
introduces the end-users of Programmable Controller (PLC) to the IEC 61131 series, and to assist the end-users in their selection and specification of their PLC equipment according to the IEC 61131 series. This user guideline has as its main audience PLC end-users.
General Information
Standards Content (Sample)
TECHNICAL IEC
REPORT TR 61131-4
Second edition
2004-07
Programmable controllers –
Part 4:
User guidelines
Reference number
IEC/TR 61131-4:2004(E)
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TECHNICAL IEC
REPORT TR 61131-4
Second edition
2004-07
Programmable controllers –
Part 4:
User guidelines
© IEC 2004 ⎯ 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.
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– 2 – TR 61131-4 © IEC:2004(E)
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 General .8
1.1 Scope and object.8
1.2 Normative references .9
1.3 Use of this report.9
2 Terms and definitions .10
3 General recommendations for installation.11
3.1 Environmental conditions .11
3.2 Field wiring.11
3.3 Electromagnetic compatibility .12
3.4 User system markings .13
4 PLC in functional safety applications .13
4.1 Functional safety and safety-related-system concept.13
4.2 Using a PLC in a safety-related application .15
4.3 Requirements on PLCs in a safety-related system.16
4.4 Integration of PLC into a safety-related system .
...
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