To upload or download screen data between your PC and the NT terminal, you need the proper physical layer connection. Legacy NT terminals rely purely on serial RS-232C communications. Cable Pinout Configuration (9-Pin to 9-Pin)
This is the most reliable and legally sound approach. Your local Omron distributor or a third-party Omron automation vendor can typically provide you with a licensed copy or access to the software, especially when it is required to support existing, active equipment. omron nt series support tool download