The Mitsubishi FX3U-32MT/ESS is a MELSEC-F series main unit with 16 transistor-sourced outputs and 16 DC inputs, powered by 100-240 VAC. This is the CPU for a mid-range compact PLC application: expandable to 256 local I/O points (384 with remote), with 64K steps of program memory stored in RAM and backed by a battery to retain logic during power loss. Cycle time runs 65 ns for a basic LD instruction and 642 ns for MOV.
USB connectivity is an option on this unit, not built into the base CPU — a separate interface module or USB programming cable is required if that connection is needed. For BOM line fill or line-down replacement, quote this part against an RFQ. The mature lifecycle and steady availability make it a solid choice for ongoing production support.