I am experiencing a problem with my 4PPC50 power panel. Yesterday, I was testing the screens and the PLC was functioning correctly. We simply switched off the panel. However, today when we switched it on, the PLC is not Running. We have not changed any configurations, nor have we altered the power supply. There are no other components besides the power supply and the PLC. We have tested the power supply and confirmed that power is reaching the PLC connector. What could be the cause of this issue?
