Allen-Bradley 2711-K5A2 PanelView 550 HMI Terminal

Allen-Bradley 2711-K5A2 PanelView 550 is a 5.5-inch keypad-operated HMI terminal that runs PanelBuilder32 and serves as a compact operator interface on DH-485 networks for legacy Rockwell Automation PLCs such as SLC 500 and PLC-5. It features a keypad input (F1–F10) and a monochrome LCD with blue-mode backlight, 120 V AC power input, and memory of 170 KB RAM with 240 KB nonvolatile storage to run applications and store screens and data; firmware revision FRN 1.07 is installed. The device is designed for panel mounting and is commonly used with the 1747-C10 DH485 communication cable to connect to DH-485 networks, placing it within the PanelView 550 family across Series A through H. With PanelBuilder32 programming, screens can display real-time process values, alarms, and trends and interact with PLC tags over DH485, enabling a straightforward local control and monitoring solution in retrofitted lines or legacy workcells where modern PV+ terminals are not deployed.