AC500 reset original through display
I am working with a PM591 CPU and I need to restore it, to factory defaults settings. Please anyone know how to do this using the pushbuttons and the display.
Remove power. Hold run button. Apply power and hold run until AC500 is displayed. Wait untyil nod 01 is displayed. AC500 is now cleared. Press up key (nod 02 displayed) press ok. If you don't do the last step the bootrom will be cleared every time the power is lost and returns.