THC doesent work when G code is running

have you chosen the correct mode in plasmac? refer docs

Sorry I missed the analog stuff in the hal file.

One thing you might do is (with LinuxCNC running)

1. Without gcode running:

halcmd show pin plasmac  > nogcode.txt

2. With gcode running:

halcmd show pin plasmac  > gcode.txt

and then compare the two files.


 

Is it performing the touch-off and arc lighting when you start the program? Torch goes down, contacts the plate (depending on your touch-off sensor), goes back up to striking height, lights the arc, at which point the THC can start reading arc voltage. Is it doing any of that?

after checking I in fact had the mode set to zero when should have been set to one, must have messed with it when I was testing, changing it to the correct mode did not affect the problem


the torch is performing touch off and arc start correctly, just the thc after not activating


I did run the codes to create the txt files but dont know how to do the manual cut and run the halcm at the same time, so thc wasnt active then, cant see anything different in the files but i dont really know what im looking at
both files below

the only thing I could see was  36 bit IN FALSE plasmac.thc-auto <== plasmac:thc-auto
I would have thought you would have this true in the GUI. Does it change the pin if you do change the gui setting?
plasmac:thc-auto should be set in a system file though