The Allen-Bradley 1791-16BC is a DC-powered Block I/O module from the Rockwell Automation 1791 series, designed for efficient distributed control and signal interfacing in industrial automation systems. It features sixteen (16) 10–30V DC input channels and sixteen (16) 10–30V DC output channels, providing balanced I/O capability for versatile control applications. The 1791-16BC includes an integrated power supply, PLC interface, I/O connections, and built-in signal processing and conditioning circuitry. Optimized for use in Remote I/O (RIO) architectures, this module delivers reliable communication, compact installation, and robust performance across a range of industrial environments.