Hello, I have a dmc63V in operation but they modified my plc backup my machine does not work the tool changer , I believe that the MMC files (images) are ok , I think you could do a test with a copy of mine , and I would like to know if you have the other files on your machine, the PLC and NC backup, which are usually saved in .ARC I'll leave my email if you want to talk ok. sjiindustrial@gmail.com