Allen-Bradley 2711-K5A5 2711-B5A5 Backlight Cover PanelView 550

This replacement keypad membrane overlay and backlight cover fits Allen‑Bradley PanelView 550 terminals with 5.5-inch monochrome displays, specifically the 2711‑K5A5 and 2711‑B5A5 keypad models. It preserves the blue monochrome LCD with a 256 × 128 pixel display area (about 4.75 × 2.38 inches) and 10 function keys (F1–F10) with 128 touch cells and up to 1,000,000 actuations; the backlight is LED with an estimated life of 100,000 hours and light guidance via the 2711‑NL1 backlight assembly. The unit is designed for 18–30 V DC input (24 V nominal) and consumes up to 18 W of power; it uses PanelBuilder32 software and provides 170 KB of application runtime, 240 KB of nonvolatile RAM, and ATA memory card compatibility for expansion. For connectivity, the PanelView 550 family employs standard serial interfaces and the 2711‑K5A5/B5A5 configuration is compatible with the PV550’s overall enclosure and ratings (IP54/IP65 dependent on installation).