Allen-Bradley 2711-B5A2X PanelView 550 HMI Touchscreen

Allen-Bradley 2711-B5A2X PanelView 550 HMI Touchscreen is a 5.5-inch monochrome operator terminal with a built‑in keypad and touch input, designed for Rockwell Automation control systems. It features a 256×128-pixel display and is powered from a universal 100–240 V AC supply (Series H, FRN 4.46). As part of the PanelView Standard 550 family, the 2711-B5A2X supports DH-485, DF1 full‑duplex, Remote I/O, and DeviceNet communications with the appropriate interface modules, enabling integration with SLC 500, PLC‑5, and MicroLogix controllers. This model is the KEY/TOUCH MONO configuration, combining local keypad entry with touchscreen navigation in a compact monochrome panel. For program transfer or backup, PanelView 550 terminals use NM-series PCMCIA memory cards (NM11, NM12, NM13), and programming can be performed with PanelBuilder32, depending on firmware and memory. The PV550 is commonly deployed for machine dashboards, process monitoring, and local control panels in legacy Rockwell automation installations.