Cincinnati Milacron 3-531-4370A I/O Bus Adaptor is a compact PC-board module that functions as the I/O bus interface/add‑on for Cincinnati Milacron control systems. The part is cataloged as 3-531-4370A (also listed as 35314370A) and is available in Revision B on some listings. As an I/O Bus Adaptor, it is used to connect and manage input/output signals on the Milacron controller bus, with diagnostic capability via status LEDs. Typical applications include retrofitting or expanding Cincinnati Milacron PLC/CNC automation systems that rely on the 3-531-4370A I/O bus adaptor interface.
