Key features and specifications of the 1769-L18ER-BB1B/B may include:

Compact, modular form factor with a small footprint for space-saving installations.

Support for 18 digital I/O points, which can consist of a combination of input and output modules.

Ability to support a wide range of I/O modules including digital, analog, specialty, and motion control modules, enabling customization for various automation applications.

Built-in Ethernet/IP communication functionality for seamless integration into Ethernet-based networks.

Support for programming languages such as ladder logic, structured text, and function block diagram, allowing flexibility for programming and development.

High-speed processing capabilities for fast program execution and response times.