Allen-Bradley 2711-B5A2 PanelView 550 HMI Display

Allen-Bradley 2711-B5A2 PanelView 550 is a 5.5-inch monochrome operator terminal with keypad and touchscreen input, featuring a blue-mode LCD that resolves 256 x 128 pixels in a 120 x 60 mm active display area (4.75 x 2.38 in). It runs PanelView Builder32 software and stores applications in 170 KB runtime memory with 240 KB of nonvolatile RAM, with ATA memory card support for project data transfer. It communicates via DH485 and RS-232 (DF1) to connect with AB PLCs, and accepts a 24 V DC nominal supply (18–30 V DC range) drawing up to 18 W. The terminal includes a battery-backed real-time clock and firmware FRN 3.01, aligning with the PanelView 550 family for industrial machine interfaces that require compact, durable HMI solutions.