Can you use this: https://www.amazon.com/gp/product/B0762NCHC6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 I had a siemens pc2100 control that I switched this out on and it worked great. The formatting to the USB stick is a bit tricky, but it worked.
I bought one of these for an old lathe controller. Will it work for you?
Updated USB Floppy Drive Emulator-Black, 3.5 Inch Floppy Disk Drive to USB Emulator Simulation for Musical Keyboad https://a.co/472UqeK
Correction - this is actually the one that I got: https://www.amazon.com/Gotek-SFR1M44-U100-1-44MB-Floppy-Emulator/dp/B0762NCHC6/ref=m_pd_aw_sim_sccl_1/140-8210023-7498004?pd_rd_w=iJ5kV&content-id=amzn1.sym.ab892632-7199-44ab-af68-cc822d588fe0&pf_rd_p=ab892632-7199-44ab-af68-cc822d588fe0&pf_rd_r=ZN0R18BPYF4SE082HFC9&pd_rd_wg=kqydq&pd_rd_r=6b915cf1-dd30-4087-bff9-d122d88c0a4b&pd_rd_i=B0762NCHC6&psc=1