NB screen freezing

[Bobodopalus 2]

Hi all

has anyone ever come across a NB series screen freezing when a screen change is attempted?

i have a NB7W which when told to change to screen 58 or 59 via a function button or via a PLC instruction it freezes the HMI and it needs to be restarted.

have i hit some screen limit or something? they only thing i can really think of it has too many graphics, it contains 6 bitmap images and about 12 graphic buttons/lamps

[Bobodopalus 2]

Ok im not sure exactly what was causing it but i think it was due to the majority of bits being used for switches and lamps were all copied in and using the same CIO bit, once i assigned them all to their correct bits it worked no problem