The Allen-Bradley 1754-L28BBB is a 28-point Flex I/O module in the Rockwell Automation FLEX I/O family. It provides distributed I/O points to expand a controller’s local input/output capability on a FLEX I/O bus. The 1754-L28BBB designation identifies a 28-point configuration within the FLEX I/O lineup, designed for use with Rockwell Automation controllers in compatible ControlLogix environments.
