Thông số kỹ thuật màn hình AB Panelview: The 2711P-K4C5A operator interface terminal is an Allen-Bradley/Rockwell Automation Panelview Plus 400 series operator interface terminal. It is AC-powered and its input voltage range is between 100 and 240 Volts AC with 50 to 60 Hertz frequency. The 2711P-K4C5A operator interface terminal has a keypad for data input and application control. This keypad has 8 function keys which the users can program to save up to 8 application functions for quick activation. The 2711P-K4C5A operator interface terminal�s display screen supports color graphics.