[bhdavis1cnc]

I am trying to add a 2nd touch down probe to UCCNC. My problem right out of the gate is that as soon as I assign a PIN and Port number to the second probe settings the first probe stops working. I don't even having anything hooked up to the CNC4PC C76/C76 control card. So initially at least this is a UCCNC settings issue.

Probe #1 works just fine with my touch down probe which is a 3-point plate unit for straight down or side hit probing. It has it's own control board with a RJ45 connecto cable from it back to the C78. You can see my settings in the attached image.

But as soon as I add Port 2 / Pin 7 as the 2nd probe address in the I/O settings page of UCCNC I get a PROBE IS BUSY error message when I try to use Probe 1.

Any suggestions on what I've got set wrong?

Thanks,
BH