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I have built over 40 pyvcp panels in my life... and I have a button that runs a simple routine to safely go home.
Lift the Z, move to the XY, lower the Z. Simple... here is the code.

O<safe-go-home> sub
G90 G20        
M5         
M9          
G53 G0 Z 0
G0 X0 Y0
G0 Z0         
O<safe-go-home> endsub

The panel has a button with a halpin: safe-go-home

And the custom_postgui.hal has

net panel-safe-go-home  <= halui.mdi-command-00  <= pyvcp.safe-go-home

And lastly, the INI has...

[HALUI]
# add halui MDI commands here (max 64)
MDI_COMMAND = O <safe-go-home>         CALL

All the components I've used like 40 times before.

Now... on this machine... I'm getting...

EOF in file:/usr/share/axis/images/axis.ngc seeking o-word o<safe-go-home> from line 0

What the heck?

Did you try pinning the IRQ?

This script can be used for testing:

 

chmod +x pinirq.txt

then

./pinirq.txt [ethernet_device_name]

My home desktop (a HP EliteDesk G1) needs this
its running  6.11.0-rc3-rt3

Note that Debian RT kernels tend to be terrible
 

I tried searching for a repository of the kernel to see if i could dig through and see what changes were made but its very difficult, it looks like kernel.org was the most informative but i still could not find an actual repository with a history tree to hunt through.  anyone that could direct me to the spot to start digging?

Have you tried importing the rt git project into a git client (eg gitKraken) and then compare 2 branches?
git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

Will try soon, due to a stupid design of the computer box and that I was too eager in my screwing in the computer, a plastic thing on the hard disc broke.
 
Right now, the computer does not want to know about the hard disc.

Thanks for all the help so far.

PhillC54.
This is an interesting aproach, basically we are muxing the THCAD input, may be some processing power can be saved using only one encoder.
I re-draw your schematic just to make it more readable, I think this will require some changes to PlasmaC componet.
 

Danil wrote:

Or please share a similar code, I would be very grateful

Try searching the forum.  I suggest limiting the search to 'title' only, and go back longer than a year.  Research the numerous posts where other folks have worked through various tool changer problems and see if what they discussed is similar to your situation.

The first problem with your request is that logic for tool changers is very hardware-specific; only you know what hardware you have and how LCNC can control it.

Second problem is that there are many different ways (in software) to control a tool changer.  G-code subroutines, Classic Ladder (i.e. PLC), python + hal via the GUI, and probably others.  As with your hardware, only you know which control scheme is the 'best' for your situation.