What is an HMI?

IMG_6888titleWhat is an HMI?

HMI stands for Human-Machine Interface.

A Human-Machine Interface (HMI) is a user interface that connects a person to a machine. HMI can technically be applied to any screen that allows a user to interact with a device. It is most commonly used in the context of an industrial process.


An HMI provides a visual overview of a system’s status and control of its operation. It’s screens can be programmed to display important information. Pictures, icons, sounds, and colors can all be used by HMIs to represent different operating conditions. Many HMIs deploy touch screen technology for user interaction with elements displayed on the screen.

IMG_0121titleAlthough HMI is the most common term for this technology, it is sometimes referred to as Man-Machine Interface (MMI), Operator Interface Terminal (OIT), Local Operator Interface (LOI), or Operator Terminal (OT).

In industrial settings, HMIs can be used to:

  • Visually display data
  • Track production time, trends, and tags
  • Oversee KPIs
  • Monitor machine inputs and outputs

PanelView600_WebHQHMIs come in a variety of forms, from built-in screens on machines, to computer monitors, to tablets. Regardless of their format, their purpose is to provide insight into mechanical performance.

HMI technology is used by almost all industrial organizations, as well as a wide range of other companies, to interact with their machines and optimize their industrial processes.


Industries using HMI include:


Food and beverage


Oil and Gas

Power Generation



Water and Waste Water

To learn more about how Radwell can save you time and money on your HMI repairs and product needs,


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