Originally Posted by
bbutcher85710
I do not think your response is correct. I did find a document that seems to indicate it is in reference to a pin number.
According to .
Mach3_V3.x_Macro_Prog_Ref.pdf
This function returns an Integer value indicating whether the specified signal is defined in
Config->Ports&Pins. A 0 return value indicates the signal is not defined, while a nonzero
return value indicates the signal is defined.
Since I am using pin 27 for this pur[pose, I believe I need to change 22 to 27.