That is where I am connected. The probe input on the MPU11. H3 Pin 6, Mechanical Probe input, and H3 Pin 5, Probe Return.
When I run the CNC11 program to check the pin connection, it says that H3 Pin 6 is input 769, not 481 as it should be.
The MPU11 I/O map doesn't have an input 481. It starts at 769 and goes to 786.