Backup compact PLC CP0482 and CP0292 without original code

Dear friends,

Could you please tell me whether it is possible to back-up PLCs CP0492 and CP0292 without a CF card and without the original source code?

I have a locally written instruction:

“How to back-up a PLC without a CF card using RUC and AS”
Version: 23 March 2021 (my own translation).

Has anyone already used this method?

Thanks