Foreword
Programmable logic controllers, known for short as PLCs, are an integral part of
automation at the lower, middle and upper performance levels. Due to the ever
increasing size and complexity of the hardware and software required in automation projects, the industry has had to develop faster, more capable and effective
automation systems and to simplify handling for users. All the exercises in this
book have been developed and tested using Siemens' SIMATIC S7-300 PLC. The
command set of this controller ranges from binary processing to 32-bit floating
point arithmetic. The controller is programmed under the Windows XP operating
system and it is assumed that users have an appropriate basic knowledge. All the
procedures for programming the SIMATIC S7-300 are demonstrated exactly and
are easy to understand for users. The topic builds up from "easy to hard" and is
ideally suited for use in vocational and technical training colleges, etc. as well as
for use on a teach-yourself basis.
I would like to thank the Wükro-Lehrsysteme company in Würzburg as well as
everybody who has helped in the completion of this book. I am always grateful to
receive feedback from readers and users.
Weißenburg/Heuberg (Central Franconia)
Jürgen Kaftan
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