after reading the Multiplus update steps via the VRM, it says to save all data as the update for V4 to V5 will clear all settings.
this should not be the case with modern s/w designs.
I have MultiPlus 12/3000/120-50 120V with V 473 and
want to update to v510
Am i safe to update the Multiplus from VRM and not worry about data loss
or
do i have to follow the complicated process of saving and re doing all the config steps over again