Allen-Bradley 2711-K5A8 PanelView 550 Color Touch HMI

The Allen-Bradley 2711-K5A8 PanelView 550 is a PanelView Standard operator terminal that combines a keypad and touch input with a 4.75 x 2.38 inch monochrome LCD display (256 x 128) and a blue-mode backlight, designed for industrial HMI applications. It features a battery-backed real-time clock, a field-replaceable battery, and memory of 170 KB runtime plus 240 KB nonvolatile RAM for application objects and text, with ATA memory card support and PanelBuilder32 software for PC-based development. Communications are broad, including EtherNet/IP, DeviceNet, ControlNet, DH+, Remote I/O, DH-485, RS-232 (DH-485/DF1), and an RS-232 printer port; power input is 18–30 V DC (24 V nominal) with up to 18 W consumption, and the keypad provides 10 function keys (F1–F10) alongside a touch surface with 128 touch cells rated for about 1 million actuations. Firmware FRN 4.41 with DH+ support accommodates legacy Allen-Bradley networks and DH-485 connectivity, making it compatible with existing PLC configurations in industrial control panels.