Omron lists the CJ2H-CPU66 as active in their current portfolio. No end-of-life notice, no last-time-buy window looming. For a new control cabinet or a spare CPU on the shelf, this is a line item you can freeze into a BOM without obsolescence anxiety. CX-One software supports the full CJ2H range — same programming environment, same tag database.
DIN rail mount with no display — fits a sealed panel where LCD screens fog or fail. RS-232C and USB on the front; the USB port handles program download without a serial adapter. Operating range is 0 to 55 °C, which covers a ventilated enclosure in a steam tunnel or under a drying hood. Approvals include CE, cULus, Lloyd, and NK — the Lloyd and NK marks are not common on PLC CPUs; they tell you this part survives the steam and the chemicals in a marine or process environment.