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Programmable Logic Controllers
by W. Bolton, Published by Newnes (Fourth Edition)
ISBN 0-7506-8112-8, paperback,292 pp,
This book, printed and bound in the UK, offers a reasonably complete coverage of the technology underlying programmable logic controllers (PLCs), which are rugged computers typically used in industrial automation and process control applications. They are controllers with a programming interface based on ladder logic and ladder diagrams. The concepts are tailored for technicians who maintain and adapt such systems, and are easily grasped. The author does a good job of explaining the basic concepts involved in combinational logic, state machines, number systems of different bases, and how the programming instruction-sets of PLCs relate to ladder logic design. Various components familiar to digital designers appear, such as chapters on counters and shift registers. As for analog, the author does a reasonable job in presenting a useful amount of detail on a wide variety of I/O devices, including sensors and actuators of various kinds.
This book has problem sets at the end of each chapter and it would make a good textbook not only for teaching technicians PLC technology, but also the rudiments of embedded systems, electromechanics, and even robotics. I do not care for the boxy European style of circuit-diagram symbols, but this can be worked around easily enough. Realistic programming examples of PLC designs are given in the last chapter.
http://rapidshare.com/files/26275224/Programmable.Logic.Controllers__umut.pdf
Programmable Logic Controllers
by W. Bolton, Published by Newnes (Fourth Edition)
ISBN 0-7506-8112-8, paperback,292 pp,
This book, printed and bound in the UK, offers a reasonably complete coverage of the technology underlying programmable logic controllers (PLCs), which are rugged computers typically used in industrial automation and process control applications. They are controllers with a programming interface based on ladder logic and ladder diagrams. The concepts are tailored for technicians who maintain and adapt such systems, and are easily grasped. The author does a good job of explaining the basic concepts involved in combinational logic, state machines, number systems of different bases, and how the programming instruction-sets of PLCs relate to ladder logic design. Various components familiar to digital designers appear, such as chapters on counters and shift registers. As for analog, the author does a reasonable job in presenting a useful amount of detail on a wide variety of I/O devices, including sensors and actuators of various kinds.
This book has problem sets at the end of each chapter and it would make a good textbook not only for teaching technicians PLC technology, but also the rudiments of embedded systems, electromechanics, and even robotics. I do not care for the boxy European style of circuit-diagram symbols, but this can be worked around easily enough. Realistic programming examples of PLC designs are given in the last chapter.
http://rapidshare.com/files/26275224/Programmable.Logic.Controllers__umut.pdf
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