Thông số kỹ thuật màn hình AB Panelview: The Allen-Bradley/Rockwell Automation 2711P-K4C20A terminal is an operator interface terminal from the Panelview Plus 400 terminal series. Its display screen is only 3.5 inches in diameter, but it supports color graphics for clear data displays. The 2711P-K4C20A operator interface terminal is controlled by a keypad. Its AC input voltage rating is 100 to 240 Volts AC at 50 to 60 Hertz.