Allen-Bradley 2711-K5A1L1 Panel View 550 HMI Terminal

Allen-Bradley 2711-K5A1L1 PanelView 550 is a 5.5-inch monochrome operator terminal from the PanelView Standard family, designed for local, keypad-based interaction with industrial controllers. It provides Remote I/O communication with PLCs and includes an RS-232 printer port for hard-copy outputs, making it suitable for straightforward machine monitoring and control tasks on a production line. The unit is powered by a DC supply, typically 24V DC nominal (acceptable range 18–30V DC), and is intended for panel-mount installation in harsh industrial environments. As part of the PanelView 550 line, this terminal supports compact, keypad-driven operator input in legacy Rockwell Automation installations and other systems that use 2711-series hardware.