Standard Data Types
This appendix summarises all the elementary data types and their features in tabular form. Their use is explained in Chapter 3.
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Springer-Verlag Berlin Heidelberg GmbH
Karl-Heinz John . Michael Tiegelkamp
IEC61131-3: Programming Industrial Automation Systems (oncepts and Programming Languages, Requirements for Programming Systems, Aids to Decision-Making lools
With 139 Figures
Springer
Dipl.-Inform. KARL-HEINZ Irrlrinnig 13 D-91301 Forchheim
JOHN
e-mail: [email protected]
Dipl.-Inform.
MICHAEL TIEGELKAMP
Kurpfalzstr. 34 D-90602 Pyrbaum e-mail: [email protected]
Additional material to this book can be downloaded from http://extras.springer.com.
ISBN 978-3-662-07849-5 ISBN 978-3-662-07847-1 (eBook) DOI 10 .1007/978-3 -662-07847-1
Library of Congress Cataloging-in-Publication Data John, Karl-Heinz, 1995[SPS-Programmierung mit IEC 61131-3. Englishl IEC 61131-3: programming industrial automation systems: concepts and programming languages, requirements for programming systems, aids to decision-making tools / Karl-Heinz John, Michael Tiegelkamp. p. cm. Includes bibliographical references and index. I. Title: Programming industrial automation systems. H. Tiegelkamp, Michael, 1959- III. Title.
T59.5 .J64 2001
670.42'7--dc21
2001018348
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Preface
The programming of industrial controllers has developed into a fully-fledged engineering discipline in its own right over the last few years. It soon became apparent that the concepts and languages used in office automation were not equal to the task. "Rugged software" and fast adaptability are just two examples of the additional demands made by industrial automation technology. To standardise a variety of modern concepts and languages for the benefit of users, the International Electrotechnical Commission (IEC) developed a standard for using industrial controllers. Based on experience with cxisting PLC languages, five programming languages were defined, together with a data concept using modern software development methods. This book introduces these
