In my post below I describe how I have it connected and working, and my printer.cfg is posted as well.
I have Tap installed, voltage (24V) comes from PB7 on the Octopus, but sensor line is connected to PG15. The Endstops "Z" and "Probe" read correctly in Klipper when open (toolhead in lowered position) and triggered (toolhead held upwards). Now here is the weird part, when I send the command...
forum.vorondesign.com
"I have Tap installed, voltage (24V) comes from PB7 on the Octopus, but sensor line is connected to PG15. The Endstops "Z" and "Probe" read correctly in Klipper when open (toolhead in lowered position) and triggered (toolhead held upwards)."
If you need anything else feel free to ping me.