That is super helpful, thanks! Sent from my iPhone > On Dec 19, 2023, at 6:31 AM, andy pugh <bodge...@gmail.com> wrote: > > On Mon, 18 Dec 2023 at 17:05, Alan Thomason via Emc-users > <emc-users@lists.sourceforge.net> wrote: > >> Is it possible to script in the initial file for the system to switch to >> Machine ON (as long as there are no active limit switches). > > Halui is a program that replicates many of the actions that are > otherwise handled in the GUI. > http://linuxcnc.org/docs/stable/html/man/man1/halui.1.html > > In this case you would need to connect up the HAL pin halui.machine.on > > Does your machine start up in the e-stop active or e-stop inactive > state? (This will depend on the wiring of the HAL e-stop loop) If it > does then you will also have to toggle the halui.estop.reset pin. > (And, having just checked, you can set them both at the same time, it > needs to be estop.reset then machine.on) > > If the machine starts up in e-stop OFF then you probably just need a > single line in a postgui halfile > setp halui.machine.on 1 > > If you also need to reset the e-stop then it's a little more involved. > So, one way would be to set up a couple of cascaded one-shots in HAL, > then trigger them on the postgui halfile. > > In the main (or custom) HAL: > > loadrt oneshot names=estop-pulse,machine-on-pulse > addf estop-pulse servo-thread > addf machine-on-pulse > setp estop-pulse.rising 1 > setp estop-pulse.falling 0 > setp estop-pulse.width 1 > setp machine-on-pulse.rising 0 > setp machine-on-pulse.falling 1 > setp machine-on-pulse.width 1 > net e-reset estop-pulse.out => halui.estop.reset => machine-on-pulse.trigger > net on-signal machine-on-pulse.out => halui.machine.on > > Then in the postgui HAL: > > setp estop-pulse.trigger 1 > > The idea is that the postgui HAL first triggers a 1-second pulse to > estop-reset, then the falling edge of that pulse triggers the > machine-on. > > It would also be possible to trigger machine-on directly from the > falling-edge of halui.estop.is-activated, but that would override the > normal ui functions (the machine would _always_ turn on when the > e-stop was released) and you might not want that. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912
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