My recollection is that AMC/DNC are both interfaces that run on top of the parameters you enter in the Toolpath software.My memory is telling me that DNC means that you are running the program from the computer linked to the machine and not using the AXYZ controller and this may mean that the computer has no idea what the limits of the machine may be.I really hope you had a hard copy of the values that applied and a copy of the installation disks as this may be the only way back.I suspect that an AXYZ tech could salvage the situation at a price.This would be the last resort from a financial point of view.With the disks to install the software and drivers for an RS485 it isn't that hard if,and only if,you have all the parameters recorded.I would suggest sticking to AMC file transfer unless the controller has utterly minimal storage and deleting any unnecessary programs in any event as it can be a bit time consuming to scroll through a huge list.I will deny any knowledge of a 4008 as I had experience only with a 6010 but the similarities are considerable.