User M codes not working

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24 Oct 2012 04:56 #25729 by Miselph
Hello all,

I am trying to use a custom M code (m101) to run an external program. In this case the program is a script which calls Zenity to display a pop up asking the user to check that the spindle is running as at the moment I am having to start and stop my spindle manually.

So, I created the following script:
#M101
#!/bin/bash
zenity --info --text="Please ensure that the spindle is running and up to speed."
exit 0

and saved it as m101.ngc in the folder specified in the [DISPLAY] section of the ini file and set the permissions to allow execution (chmod +x m101.ngc)
The script runs fine from the terminal but when I try and call the m code from the MDI interface in Axis it give me the "unknown m code used" error.
I have also tried placing the file in the same folder I place my oCodes in and it still doesn't work.

Any ideas?

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24 Oct 2012 06:20 #25730 by Miselph
Replied by Miselph on topic Re:User M codes not working
Fixed it. Turns out that the file name needs to be M101 without any extension.

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24 Oct 2012 12:10 #25742 by andypugh
Miselph wrote:

Fixed it. Turns out that the file name needs to be M101 without any extension.

I also think that #!/bin/bash ought to be the first line in the file.

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26 Oct 2012 10:35 #25833 by TarHeelTom

Fixed it. Turns out that the file name needs to be M101 without any extension.


If memory serves me correctly, M codes are case sensitive. On my system M101 would work, but m101 would not.

The answer is to create a duplicate file with the file name "m101".


Tom

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26 Oct 2012 18:36 - 27 Oct 2012 20:07 #25840 by BigJohnT
M100-199 codes are not case sensitive, however after you create a new M100-199 file you must restart the GUI or you will get the "Unknown m code used" error which can lead to confusion.

Edit: the file name is case sensitive and must use a capitol M.

John
Last edit: 27 Oct 2012 20:07 by BigJohnT.

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27 Oct 2012 11:45 #25869 by Miselph
Replied by Miselph on topic Re:User M codes not working
I have been doing some tests regarding case sensitivity.
Whilst M codes themselves are not case sensitive the linux filesystem IS.

If the file is named M101 then it works regardless of if you use a capital letter or not in the MDI panel, but if the file is named m101 then it doesn't work at all.

Also andypugh is correct; technically the #/bin/bash bit should come first (although my files are working anyway, but I shall change them when I get a chance)

Thanks everyone.

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27 Oct 2012 20:06 #25884 by BigJohnT
Thanks for catching that, I've updated the manual to explain the file naming conventions.

Thanks
John

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