pausing execution of G-code

Hello Everyone,
Is it possible to pause execution of program when sensor goes "HIGH"?
What I need is the following:
I have designed not usual cnc machine to cut brittle and hard materials (primarily natural stone, glass etc.).
I am planning to use force sensor in the machine. When sensor's output exceeds certain value, I need G-code execution to be paused until the moment force sensor's value comes back and equal the limit.
When sensor's value goes back to limit value - pause needs to be release and execution of G-code continues.

Is it possible to do with linuxcnc?
Any suggestions, please on how to achieve it?

Thank you very much in advance!
 

Try M66 - wait on input
linuxcnc.org/docs/2.8/html/gcode/m-code.html#mcode:m66

I would net the sensor output to motion.feed-inhibit

from the manual:
motion.feed-inhibit IN BIT When this pin is TRUE, machine motion is inhibited for gcode commands.If the machine is performing a spindle synchronized move when this pin goes TRUE, the spindle synchronized motion will finish, and any following moves will be inhibited (this is to prevent damage to the machine, the tool, or the work piece).If the machine is in the middle of a (non-spindle synchronized) move when this pin goes TRUE, the machine will decelerate to a stop at the maximum allowed acceleration rate.Motion resumes when this pin goes FALSE.Note: feed-inhibit applies to gcode commands -- not jogs.

Hi tommylight,
Thank you for replying! And thank you to everybody else replied to me!
not exactly. the cutting medium, which is wire is stringed to constant value. force sensor is in-line with it. I am trying to keep weight of moving parts as light as it possible and that is why choosing the motor takes several years for today as in addition to weight I need the motor to be BLDC. This is what I need to stop temporarily execution of G-code. But I need it to be resumed automatically when sensor will report previously set value back. This will, yes, make machine to run and pause and that might happen quite often. I just remember that in linuxcnc interface there is a need to press the button manually after G-code has been paused. I need the way to do it automatically.

motion.feed inhibit seems like it will be perfect for you. You may ned to adjust your accelleration settings

Thank you @rodw, will look into it!

yes, @tommylight - it is a wire. Not EDM though.