1/4 DIN panel cutout, self-tuning loop
The PXF9ABP2-FVMA1: Fits the standard 1/4 DIN panel cutout (96x96mm) — same footprint as every other 1/4 DIN controller on the market, so it drops into an existing panel hole without rework. Self-tuning algorithm auto-calculates the PID gains on startup or on demand, which saves the commissioning engineer from manual Ziegler-Nichols step tests. The 50ms sample rate gives the autotune enough resolution to catch the process reaction curve cleanly.
The 1/4 DIN form factor and 50ms sampling are the defining specs for BOM fit.