look inside the control and hope someone has left some backup disks in there , otherwise your pretty much screwed im afraid!
you will probably find the memory back up battery has died . everything is stored in battery backed up ram on these so if battery dies you just have a huge paperweight left.
even with all the backup disks you will probably need a biesse tech to get it all up and running again (pretty complex machines to get going on a backup)
you could upgrade the control but this is time consuming and can be expensive
so much to learn, so much to pass on.