In the previous 'Everything about factory automation' book, we learned about the basics of factory automation. We came to know a PLC is an inevitable part of industrial automation. An industry cannot be automated without the aid of a PLC, since there is a number of PLC manufacturers available in the market each PLC has its different aspects. Even if they are dissimilar, but they work on the same principle. In this book, we will dig deeper into the basics and advanced PLC programming. We are going to learn about Allen Bradley, Siemens, and Mitsubishi PLC, their programming software with real-world examples. What makes this book different? Well organized information Simple diagrams Digestible lessons Programming software elaboration