Allen-Bradley 1761-L20BWB-5A is a digital I/O module in the 1761 family that provides digital input and output capability for compatible PLC systems. It expands a controller’s ability to monitor sensors and switch actuators by adding binary I/O points via the 1761 I/O lineup. As a 1761-series module, it is designated by the model number 1761-L20BWB-5A for precise identification and stocking within Allen-Bradley automation ecosystems.
