Thông số kỹ thuật màn hình AB Panelview: The 2711P-B4C3D terminal is an operator interface terminal from the Allen-Bradley Panelview Plus 400 series. It comes with both a keypad and a touchscreen for control options, but the touchscreen is only 3.5 inches in diameter. However, the 2711P-B4C3D operator interface terminal�s touchscreen can support full color graphics. This terminal is DC-powered with 18 to 32 Volts DC input voltage. The 2711P-B4C3D operator interface terminal comes with a DH-485 port for communicating with other devices.