Tool_in_spindle probleme with current_pocket

I have a small problem with the programming and settings of my M6 remapping.

To start with, at the moment the carousel is working perfectly but my problem comes from the condition

o103 if [#<tool_in_spindle> NE #<current_pocket>]
       (abort, tool changer in wrong position)
o103 endif

I have a little program called mdi_command, which when you press a physical button turns the carousel to tool 16 (No tool change). This mini program works.

on the other hand if I ask for tool number 2, the program does not abort, but executes the tool change. so the tool currently in the spindle is in pocket 16.

First tool change ( tool 3)

carousel.0.pocket-number - 3
carousel.0.current-position - 3
iocontrol.0.tool-number - 3

Mini program

carousel.0.pocket-number - 16
carousel.0.current-position - 16
iocontrol.0.tool-number - 3

second tool change ( Tool 5)

carousel.0.pocket-number - 5
carousel.0.current-position - 5
iocontrol.0.tool-number - 5

but the tool 3 is in the pocket 16

I have the impression that #<tool_in_spindle> is not working properly, how can I remedy this problem?
 

is it configured for a random tool changer ?

it's not for a random tool change, i have a carousel with 30 tools. my carousel is surrounded by safety casing except in 1 place, opposite the spindle.
when my button is pressed, the carousel shows tool 1 in front of the slot, so tool 16 in front of the spindle, to avoid having to press jog 15-16 times to be in front of tool number 1.

the mini-program (MDI_command) is as follows:

it shows tool number 1 in front of the slot, but if I call tool number 2 in the spindle using M6, it should display an error message.

(abort, tool changer in wrong position)

but as said before, it executes the tool change program, so the current tool in the spindle is inserted into pocket number 16 or the pocket immediately in front of it. Whereas in the M6 remapping I did insert the condition

That's precisely how the random tool changer option behaves  the system manages tools and pockets.

Did you change it to random tool changer?

yes, sorry, I've just tried it out and it works perfectly!

But I have some questions to improve the M6 remap.

I tried to save tool number in var file and load on start like this link below but it doesn't work.

forum.linuxcnc.org/38-general-linuxcnc-q...le-and-load-on-start

during M6 at the end of my macro I inserted #4999=#5400
I get the information back when I restart linuxcnc and press home all because I integrated a mdi command to enable the carousel to do this homing procedure and at the end I insert the M61 Q#4999 command.

When I change tool, my variable is always 0 (the variable must not be implemented) and this causes me a lot of problems because I don't have tool number 0.

So my .var file never shows 4999 and 5400 after closing linuxcnc.

Finally, what variable can I use to make it understand that there was no tool in the spindle when linuxcnc was closed?
 

i'm reopening the post, after several attempts with the random tool change and having quite a few problems with the positioning of the tools, i've gone back to non-random toolchanger. however, i'm having the same problem as at the beginning of the post.

Is there a way to make this little program work in non-random toolchanger?

no idea, I gave up messing with carousel and just wrote a custom hal component to manage my tool changer and My machine is not set in random.