Allen-Bradley 2711-K5A1L1X PanelView 550 HMI Terminal

Allen-Bradley 2711-K5A1L1X PanelView 550 Monochrome Operator Terminal is a compact, keypad-driven HMI designed for standalone machine control and straightforward operator interaction. It features a 5.5-inch monochrome LCD with a 256 x 128-pixel native resolution within a 120 x 60 mm active display area and a stainless-steel domed keypad with 10 function keys (F1–F10). The display includes a 100,000-hour LED backlight and a battery-backed real-time clock to timestamp critical data. On-board memory comprises 170 KB of application runtime and 240 KB of nonvolatile RAM for objects and text, with support for an ATA memory card to store programs and assets. Power is supplied from 18–30 V DC (24 V nominal) with a maximum draw around 18 W. For connectivity, PanelView 550 terminals provide multiple serial and network options, including an RS-232 printer port (speeds 1200/2400/9600/19200 bps) and broader communication support via EtherNet/IP, DeviceNet, ControlNet, DH+, Remote I/O, DH-485, RS-232 (DH-485), and RS-232 (DF1) interfaces, depending on the exact submodel. PanelView 550 software support includes PanelBuilder32 for program development, and the unit uses a battery-backed clock to ensure time-stamped data across logs and alarms.