Thông số kỹ thuật màn hình AB Panelview: The Allen-Bradley/Rockwell Automation 2711P-B4C20D terminal is an interface terminal from the Panelview Plus 400 series that has both a keypad and a touchscreen. The keypad comes with 8 programmable function keys and the touchscreen comes with color graphics. The touchscreen on the 2711P-B4C20D interface terminal is only 3.5 inches wide. It can operate at an input voltage range between 18 and 32 Volts DC.