There is a quotation which was originally stated by Confucius, I would like to present it here as a very practical statement on how the human mind approaches the learning process:
I hear, and I forget. I see, and I remember. I do, and I understand — Confucius
This entire means that the best way to understand anything is to get your hands on it and actually experiment with it. In computer programming this means writing many small programs and using some kind of simulator software to test programs’ functionality. The book provides both fundamental and cutting-edge coverage on PLCs. It explains most basic to intermediate and advance instructions through many worked-out examples and explanations of the solutions. Since this is a self-teach manual, it is assumed that reader may not have any access to a PLC instructor, to discuss any problems. Based on this assumption, the reader is familiarized with Step 7 version 5.3 software (developed by Siemens Automation) to show the reader how the software could be used to edit, run and finally how to debug a program in hand. So this is not just another programming book in PLCs, THIS IS THE BOOK THAT TEACHES YOU HOW TO PROGRAM SIEMENS SIMATIC FAMILIES OF PLCS (300/400) WITH FUN!!