Piezo DN Limiter Target

I am unable to use the PIEZO DN tools at the moment. I have too many bugs and as I don’t understand what I’m doing I feel like I’m pedaling in a vacuum. So I decided for the moment to create my own linbearization curves in Photoshop.
A simple question to the creators of piezoDN. Do the 255 numbers of the Piezo Limiter Target chart correspond to the 255 RGB of the PHOTOSHOP curve?
I admitted it at first but the information in Photoshop does not give the same numbers.
Best regards