The Allen-Bradley 1769-L24ER-QBFC1B is a CompactLogix packaged controller from the 5370 CompactLogix family, designed for integrated control and communication. This 1769-L24ER-QBFC1B controller features 1 MB of embedded memory, two (2) Ethernet ports, one (1) RS-232 port, and one (1) USB interface for versatile connectivity. It includes sixteen (16) sinking/sourcing 24V DC digital inputs, sixteen (16) sinking 24V DC digital outputs, four (4) high-speed counter inputs, four (4) high-speed outputs, four (4) universal analog inputs, and two (2) analog outputs. The Allen-Bradley 1769-L24ER-QBFC1B CompactLogix controller supports up to four (4) Compact I/O modules, providing flexible expansion and reliable performance in industrial automation systems.