Thank you Barada...very uselfull info. However..the NC is working fine, I have already loaded the PLC and PAR files previously using a similar schematic. The big issue is that I cannot get the NC to read a .PGM file....I keep getting the error "Invalid File Format"

More searching over the internet leads me to believe that this old NC requires a file called cnvrt1.1.exe to convert to PGM files and not WinXiso