Mach4Lathe: When G31 G01 X-.20 F5 is called from the MDI the machine stops at the probe strike as it should.

I have this function in the screen load script and it is called from a button press.
function TestG31()
local inst = mc.mcGetInstance()
mc.mcCntlGcodeExecute(inst, "G31 G01 X-.20 F5")
mc.mcAxisHome(inst,0,0)
end
It doesn’t stop at the probe strike but finishes as a G01 X-.20 command. I eventually would like this code in the RefAllHome() function to stop on an encoder Index pulse.
Any help with this would be appreciated.

Do not put the G1 in the code.

Thank you! That worked. I've been fighting with this for a week. I really do appreciate your help.
Tony

I think I'll have to write a coroutine.yield() after the probe move for the rest of the code to execute properly. Stay tuned!

Glad I could help someone.
I have gotten a lot of help on here.

Use mc.mcCntlGcodeExecuteWait

The trouble with mc.mcCntlGcodeExecuteWait is that it pauses the PLC script while it is waiting so the position DROs in the GUI don’t update until it is done.

DasTheGas has a great tutorial on coroutines that explains this: https://www.youtube.com/watch?v=t2xQYvAXT8o

True, but I do not need to know the exact position Mach does.
When it is done is fine for me.