HMI Touch Screens & Operator Interface Panels

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HMIs (human machine interfaces, also known as operator interface panels, open interface panels, touch screen panels, or operator terminals) are the display screens that let operators monitor, control, and adjust machines and processes run by a PLC or controller. Panels such as Allen-Bradley PanelView, Siemens SIMATIC, Pro-face, and Weintek show alarms, production data, and setpoints, and they take operator input through touchscreens, keypads, or push buttons. They are used on packaging lines, machine tools, injection molding machines, food and beverage lines, water treatment plants, and nearly every automated production system.