I am running the Ajax setup with the DC3IOB&MPU11, while I am in the cabinet hooking up the VFD I would also like to add in a simple tool setter with PCB board.  The MPU11 has a probe input but I am really unsure if that is what I should be using or another input.  The Ajax instructions say nothing about a tool height setter just the probe and I am lost when it comes to all these port&pin configurations, I read Tweakie’s page on it and it was helpful and know I am ground to the chassis in 2 of the probe pins but just not clear on what is what, where I should enter pin numbers or who knows what else I am missing.  I have searched on the Ajax forum with no luck.  Any help would be great.
Thanks