Contents

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1. 2. Contents 1 Introduction ........................................ ........................................ ........................9. Subject of the Book ........................................ ........................................ .........10. The IEC 61131 standard ........................................ ........................................ ..12. Goals and benefits of the standard ........................................ ........................12. Manufacturers (PLC hardware and software)............................... ........................................ .. 13. 13. History and components ........................................ .......................................1 4. The OrganisationPLCopen ........................................ ......................................16 . Committees and fields of Results.

1 Introduction The rapid advances in performance and miniaturisation in microtechnology are constantly opening up new markets for the programmable logic controller (PLC).