Allen-Bradley 1769-L18ER-BB1B DI/O Controller

The Allen-Bradley 1769-L18ER-BB1B CompactLogix DI/O Controller integrates PLC processing with built-in digital inputs and outputs and EtherNet/IP communication in a compact package designed specifically for small- to mid-sized machine automation projects and networked control. It provides 16 digital inputs and 16 digital outputs at 24V DC, 0.5 MB of user memory, and a single EtherNet/IP port, with expansion capability for Compact I/O 1769 modules and programming through Studio 5000 Logix Designer to map I/O, logic, and communication paths across a control system. Common applications include packaging equipment, conveyors, material handling machinery, and automated production machines, and the unit supports mounting on DIN rails or panels and operates from 0 to 60 °C (32 to 140 °F). This controller is part of the CompactLogix 5370 L1 series and has common replacements such as 1769-L24ER-QB1B and 1769-L30ER for upgrades or replacements.