Allen-Bradley 1745-E104 Programmable Controller

Allen-Bradley 1745-E104 Expansion Unit for the SLC-100 family (Bulletin 1745) adds I/O capacity to an existing SLC-100 programmable controller, functioning as an external I/O expansion in a Rockwell Automation control system. This expansion module is designed to work with SLC-100 CPUs and is listed as part of the SLC-100/SLC-150 expansion lineup, extending the controller’s discrete input and output points in industrial automation environments. The 1745-E104 is an Allen-Bradley product commonly cataloged as an expansion unit for SLC-100 PLCs, compatible with legacy SLC-100 configurations. Typical applications include factory automation scenarios where additional digital I/O is required on SLC-100 control architectures, such as manufacturing lines or packaging and material-handling equipment. It bears the part number 1745-E104 and is marketed by Allen-Bradley (Rockwell Automation) as part of the SLC-100 expansion family.