The Allen-Bradley 1764-28BXB is a MicroLogix 1500 base unit designed to serve as the foundation for a compact and powerful control system. This unit operates on a 24V DC power supply and comes equipped with a versatile I/O configuration, featuring 16 digital 24V DC inputs (including four fast inputs for high-speed applications) and 12 individually isolated relay outputs. As a core component of the modular MicroLogix 1500 family, it combines the small footprint of a micro-PLC with the performance and expansion capabilities required for demanding industrial automation tasks. Its DIN rail or panel mounting options provide installation flexibility in various control cabinets.