2.2.5 Human Machine Interface (HMI)

The HMI enables the machine operator to interact with the control loop.

In this chapter we will learn about Human Machine Interfaces (HMI), which are interfaces with which a human can read out and operate a machine. Depending on how advanced they are, they can even read out PLC logic and reprogram them.

What is an HMI?

This video will give you a broad overview over the role HMIs play in modern OT, what their purpose is and how they are installed.

Last modified October 5, 2022: Historian article (#107) (5f30dc0)