I've got Cadi, it allowed me to view the system inputs as they change,
I could see that the KSE-D input state was changing as the magnet switched, I couldn't not see KSE-U change however.

After watching the input for some time, with constant 24v on the KSE-U, It did register a state change for a brief second, but didn't stay.

Would I be able to program a different input on the kse plug to be used as kse-u? It seems that pin 3 on the kse plug is not used.
I've ordered a new SDIC board. So we will see!