Report on PLC Applications, Communication Media & Networks-U12A2

This report provides a comprehensive overview of Programmable Logic Controller (PLC) applications, focusing on program documentation, hardware considerations, and health and safety aspects. It includes an I/O listing, wiring diagrams, a flowchart, and a commented copy of the PLC program for a specific application. The report discusses the importance of health and safety when working with programmable controlled equipment, detailing methods for connecting start/stop and emergency stop buttons, and outlining actions to take when a PLC system malfunctions. Furthermore, it examines various communication media used to connect distributed components of a PLC system, including twisted pair, coaxial, and fiber optic cables, highlighting their advantages, disadvantages, and possible applications. The report also touches upon network standards and protocols used in modern PLC systems.