Ah, I see, that makes sense. There is currently no HAL pin that does what you want, and no mechanism to trigger it. I'd probably use PyVCP or GladeVCP to add a button to your GUI, and use the bit output pin from that button to trigger the relay that overrides your hard limits.
Docs here: http://linuxcnc.org/docs/2.7/html/gui/pyvcp.html#_buttons On 02/07/2017 10:54 AM, Todd Zuercher wrote: > The idea being to use the hal pin connected to an output to do the same thing > as your override button. > > ----- Original Message ----- > From: "Sebastian Kuzminsky" <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Sent: Tuesday, February 7, 2017 10:56:17 AM > Subject: Re: [Emc-users] Override Limits? > > On 02/07/2017 08:48 AM, Todd Zuercher wrote: >> There is not currently any hal out pin for limit override, or is >> there? >> >> I think this might be a useful addition for machines with hard limits >> connected directly to drives. > > If the hard limit switches are connected directly to the drives, then > there's nothing a HAL pin could do to override them, is there? > > On my machine I have a manual push-button that overrides the hard limit > circuit, so that while i hold that button down the drives think none of > the hard limit switches are tripped. It also fools the E-stop circuit. > That lets me come out of E-stop and jog off the limits when I (ahem) > crash the machine. > > -- Sebastian Kuzminsky ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
