Every control panel runs on 24 V DC, and a power supply that sags or fails stops the whole machine. SITOP supplies are stabilised switch-mode units designed for exactly this job, with enough reserve to start loads with high inrush and a clear DC OK signal for the PLC on selected models.
The PSU100S is the slim, cost-effective choice for single-phase panels from 2.5 A to 20 A. The PSU6200 and PSU8200 families add wider input ranges, diagnostics and higher efficiency, and the PSU8200 three-phase units suit larger panels fed from 400 V. The small LOGO!POWER units are listed with the LOGO! range.
To size a supply, add up the 24 V loads (PLC, I/O, sensors, valves, HMI) and add about 25% reserve. We can check the calculation for you and supply matching buffer or redundancy modules if your process cannot stop.