What the 50 ms sampling means on a process line
The PXF9APE2-0BCA1: That 50 ms update rate means the controller catches fast thermal transients — think injection-mold cavity temperature or thin-film extrusion — where a standard 250 ms loop would miss the overshoot and let the part scrap.
The 1/4 DIN (96 x 96 mm) cutout is a standard panel-mount footprint — the same hole pattern as every other 1/4 DIN controller on the market. The 50 ms sampling is fast enough for closed-loop PID on electric heaters or valve actuators; the self-tuning algorithm sets the P, I, and D terms on first run, so commissioning is a single power cycle.