Simple definition of HMI

What is HMI?

HMI stands for "Human Machine Interface".

A Human-Machine Interface (HMI) is a user interface that connects a person to a machine, system, or device. This term broadly defines any device that enables a user to interact with an industrial device.

HMI involves three main human interaction functions:

  • Touch (control by buttons, touch screens, keyboards, numeric keypads)
  • Sight (monitoring and control on screen, supervision by light towers)
  • Hearing (audible alarms, beeps)

Industrial HMI devices enable monitoring and/or control of the equipment they are connected to through a (programmable or non-programmable) controller. Their functions include:

  • Settings
  • Control and Command
  • Monitoring and Supervision
  • Historical Data Storage
  • Smart Gateway

Did you know? The first HMI is the button! 

Pro-face is the inventor of the first programmable graphic HMI. Pro-face HMIs natively connect to almost all other industry brands and is renowned as a manufacturer of robust and reliable products since the 1980s.