Human machine interface also known as HMI, is a technology system that helps operators control, monitor, and diagnose errors when operating machinery. It is often widely used in large industrial processes and industrial zones that require high automation.

HMIs have various classifications, including Operator, Touchscreen, and Physical Control Panel. Each classification will have different functions and components. But in general, the HMI system is still a perfect choice in the current 4.0 era, helping to optimize many production processes, provide timely information on performance, or promptly notify errors that arise in the machine during operation.