Advanced PLC Hardware & Programming: Hardware and Software Basics, Advanced Techniques & Allen-Bradley and Siemens PlatformsA comprehensive treatment on the topic of PLC (Programmable Logic Controller) hardware and software. It concentrates primarily on the Allen Bradley and Siemens PLC platforms but includes examples from many other brands. The first section covers PLCs from a generic perspective, discussing features that are common to all platforms along with their differences. This section also has a history of computers and computing devices along with the evolution of