Panel fit and sampling speed
The PXF9AES2-FBCA1: The 1/4 DIN form factor fits standard panel cutouts, and the 50 ms sampling means the PID loop updates every 50 ms — fast enough for most thermal processes with short time constants.

Fuji Electric PXF9AES2-FBCA1 1/4 DIN (96 x 96 mm) self-tuning temperature and process controller, 50 ms sampling speed, current lifecycle stage.
The PXF9AES2-FBCA1: The 1/4 DIN form factor fits standard panel cutouts, and the 50 ms sampling means the PID loop updates every 50 ms — fast enough for most thermal processes with short time constants.