Allenbradley PV 600 showing error 31.i have recycled the power in vain.How to get it displaying the data screen back.and why the error 31 always present.what shall i do?
I think from memory (haven't checked the manual), it is a 'STUCK KEY' test. So either there is a bit of gunk on the screen, or possibily a section of the screen has become damaged (we've had them before damaged by direct sunlight).