Description:
HMI is the 2 under Human-Machine Interface (HMI) from NISTIR 6859. Software and hardware that allows human operators to monitor the state of a process under control, modify control settings to change the control objective, and manually override automatic control operations in the event of an emergency.
Human machine interfaces (HMIs) are used as an operator control panel to PLCs, RTUs, and in some cases directly to IEDs. HMIs replace manually activated switches, dials, and other controls with graphical representations of the control process and digital controls to influence that process.
In summary, the HMI, or Human-Machine Interface, plays a vital role in the automation and control of systems in a wide range of industries. It provides an intuitive and efficient way for operators to interact with complex machines and processes, facilitating control, monitoring, and configuration of automated systems.
Example: Used: Delta’s HMI products provide various communication ports for fast communication and convenient control of a diverse range of machines, systems and facilities. The color touchscreen enables intuitive parameter entry and a variety of ways to display variable data, including trend graphs and alarm elements.
