Will the following work?

#<named_param> = 1
o101 while [#<named_param> LT 2]
    o102 if [some condition]
         #<named_param>=3 (exit the loop)
     o102 elseif [some other condition]
         (do something and reloop)
     o102 else
        (do nothing and reloop)
     o102 endif
o101 endwhile

Then you are giving a valid way out of the loop, allowing something to 
happen while still in the loop and providing a way to keep looping 
without doing anything.

Jim


On 11/4/2015 7:57 PM, Ralph Stirling wrote:
> I use Linuxcnc for machine automation in my manufacturing lab,
> and am bothered by the difficulty of creating "infinite loops".
> I often want to have a machine sit an indefinite amount of time
> until a sensor signals it is time to make the next move.  M66
> lets me wait for a sensor, but requires a timeout value.  I don't
> want a timeout value.
>
> In addition to this, I would like to be able to have WHILE [1]
> infinite loops, with a conditional to break out based on some
> input.  Axis hangs loading a program with WHILE [1] in it,
> even if I have (axis,HOLD) or (axis,STOP) at the beginning.
>
> Anybody else wanted to do this?  Anybody find a way to?
>
> Thanks,
> -- Ralph
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> Emc-users@lists.sourceforge.net
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>


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