Process industries heavily use HMI like oil, gas, mining operations in which many processes are managed remotely from the Human Machine Control room. HMI is widely using in manufacturing companies. In Asian countries, Toshiba, Fuji, Delta, Mitsubishi, Omron, Panasonic are using in manufacturing industries. Most of the American process industries used Allen Bradley controllers.
The most commonly used PLC in process industries is Siemens. Computer-based Human Machine Interface (HMI) provides how to process personnel interact with the PLC control system. Most of the modern control systems employ a PLC as a means to control motors, valves, pumps, and different other components used in a process.