The Allen-Bradley Panelview 550 (2711-K5A10) by Rockwell Automation is an operator interface with a monochrome 5.5” LCD screen and keypad input. Boasting DeviceNet and RS-232 connectivity, it runs on Panelbuilder 32 software with 170 KB memory, and is powered by 120 VAC. Despite its discontinued status, it remains a resilient choice for process control. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 2711-K5A10 Product Line Panelview 550 Display Size 5.5 in. Display Color Monochrome LCD blue mode Input Type Keypad(F1-F10) Communication DeviceNet Communication and RS-232 Printer Port Input Power 120 VAC Software Panelbuilder 32 Memory 170 KB application runtime Backlight 2711-NL1 Communication Cable 2711-NC13 Shipping Weight 6 lbs Shipping Dimensions 14x11x8 inches Series A,B,C,D,E,F,G,H Firmware 1.00-4.48 Product Lifecycle Status* Discontinued/Obsolete