THC300 float switch config

Hi all,
I am using the THC300 config provided in the examples. I use a component in place of the hardware. The component provides the up/down signals as well as the arc_ok signal.

I have a problem that the torch fires while the tip is still on the plate and in the process of pulling up to the cut height. At this time the float switch is still closed as well.
Any suggestions please?

Good suggestion John. I will build it into my first design. I am on number three already.

John,
I am using your thcud component. I changed what I had to in order for thc to work. One question please. In the touchoff.ngc I set a G92.1 ond then Z50. As my Z max limit is set at 5mm, I get an error that the move will exceed the max limit. In actual fact the torch is 200mm away from the limit. Is there a way to overcome this situation?

I understand what G92.1 does. I am asking if you have any suggestions to overcome that in my setup. The Z has a home switch right at the top of the travel and the job is as far as 200mm down from there.

Ok - here goes.
The gantry of the plasma is about 200mm high (from the job). It has a limit/home switch at the top where the zero sits after the homing cycle. I have floating head with a limit switch that has travel between open and close so I have to do a G38.2 to probe downwards and then a G38.4 to get the switch to open again. Now with the z max limit set at 5mm away from the home switch, you can see that the G38.4 will have a problem to move to 50mm. Axis will not allow it.

This is the touchoff code.

Thanks John, I will try that. I am probably getting confused between the absolute and incremental states.