The "conversion" process is not a single action but a core workflow that moves data between binary (EPROM) format and an editable (LAD) format. In simpler terms, you are dealing with two different "languages" that require a translator.
A Fanuc PMC EPROM Convert Tool is a specialized software and hardware solution designed to read the physical EPROM chips from older Fanuc CNC controllers and convert the binary/hex data into a format that can be read, edited, or backed up by modern PC software. Fanuc Pmc Eprom Convert Tool