The purpose of this text is to design, implement and detail a PLC base temperature controller using a LOGO! PLC. This book is prepared for those who are already familiar with the application of basic PLC instructions and now want to challenge their knowledge by writing a much more complex industrial control program. In the text, a typical Functional Specification of a full industrial temperature controller is presented to you, the reader. Your job is to re-write the main program which consists of many blocks of instructions using FBD language.
The schematics of all the hardware used in these projects is also given. The text contains many schematic diagrams and screenshots to show you how certain input/output field devices are wired to the PLC in use. The main control PLC program will be provided to you if you email me the proof of your purchase of Kindle version of the book from Amazon as you are directed in the preface section of the text. When you either write a PLC program similar to the one defined in the text, or read my solutions and understand the codes and software, you will be able to write additional programs on your own. You even can expand these programs to have more features if you wish. When you can accomplish that, it means that you definitely have the entry level skills required to succeed in a competitive market. PLC programmers must be able to develop logical thinking skills, problem solving skills and trouble shooting skills in order to be successful in today’s market. Therefore, successfully completing this project verifies that you have taken those steps, fulfilled these requirements and achieved those goals. PLC Technicians involved in design or repair of industrial control equipment generally work in clean, well-lighted, air-conditioned surroundings such as in offices or testing and repair facilities. Prior to all of this happening, you must show the employer that you are the best candidate for the job rather than someone just out of school. Having gone through this text, your skills will enable you to perform more complicated PLC programming.
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