My DPO is giving me some troubles and I need to get a small program loaded to UCT-53. Is it possible to program the 4797L device with UCT-53 without DPO?
Unfortunately, from what it seems, you can't program the 4797L device without DPO. My recommendation is to contact the official developers and ask for help. You can get in touch with Hitachi High-Tech Instruments using the contact information from the official web page.