Resetting feedrate override from multiple signals
02 Dec 2016 19:57 #83595
by CMB
Resetting feedrate override from multiple signals was created by CMB
Although the method below works as expected, I'm new to LinuxCNC and I'm still trying
to sort out the cleanest way to set things up. Especially when using multiple hal files
and in cases where pins are intentionally written to from several sources using multiple signals.
Can someone comment on a better method to do the following, or if the example below is considered
an acceptable practice?
I'm particularly concerned about the use of halcmd in the M code...
The purpose is to perform the following:
Set feedrate override to 100% when Gmocappy is initially loaded.
Set feedrate override to 100% before performing an auto tool touchoff.
Other signals must be easily added to reset the feedrate override in a uniform fashion. (using <or> in hal)
Secondly, What if I'd wish to store the current FRO value before resetting it and return it to the previous value after running the touchoff subroutine (in Gmoccapy)?
to sort out the cleanest way to set things up. Especially when using multiple hal files
and in cases where pins are intentionally written to from several sources using multiple signals.
Can someone comment on a better method to do the following, or if the example below is considered
an acceptable practice?
I'm particularly concerned about the use of halcmd in the M code...The purpose is to perform the following:
Set feedrate override to 100% when Gmocappy is initially loaded.
Set feedrate override to 100% before performing an auto tool touchoff.
Other signals must be easily added to reset the feedrate override in a uniform fashion. (using <or> in hal)
Secondly, What if I'd wish to store the current FRO value before resetting it and return it to the previous value after running the touchoff subroutine (in Gmoccapy)?
(excerpt from halfile)
setp oneshot.0.width 1
net req-rst-fro-onload => oneshot.0.in
sets req-rst-fro-onload 1
net rst-fro-onload <= oneshot.0.out => or2.4.in0
net M110-req-rst-fro => or2.4.in1
net rst-fro <= or2.4.out => gmoccapy.reset-feed-override
(M Code that gets called from the touchoff subroutine)
(M110)
#!/bin/bash
# Mcode to reset Feedrate Override
halcmd sets M110-req-rst-fro 1
sleep .1
halcmd sets M110-req-rst-fro 0
exit 0Please Log in or Create an account to join the conversation.
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