Allen-Bradley 1769-L16ER-BB1B Digital Input Module

Allen-Bradley 1769-L16ER-BB1B Digital Input Module is a digital input module in the Allen-Bradley 1769 Compact I/O family. This module is used to read binary input signals from external devices and present those states to a controller as discrete digital data, enabling real-time monitoring and control within a 1769-based automation setup. The part number 1769-L16ER-BB1B identifies this specific configuration within the 1769 product line, helping integrators select the right input module for their application. As part of the 1769 ecosystem, it is designed to integrate with compatible controllers and I/O backplanes to support modular, scalable automation architectures found in industrial environments. Devices such as pushbuttons, limit switches, sensors, and other discrete inputs can be connected to this type of module, providing a straightforward interface between field devices and the programmable logic controller. The module's role in a control system is to translate physical state changes into binary information that the controller can use to make decisions, log events, or trigger downstream processes. This description reflects the model designation 1769-L16ER-BB1B and the module's function within Allen-Bradley's compact I/O solutions.