Hi Len,
Never rely on a computer for EStop or limits. Your EStop and limit switches should all be part of a chain of switches that directly kill the supply. The computer should obviously be notified that an EStop has occurred but it should not be able to prevent an EStop. In the case of limits you need some way of overriding them, preferably by a pushbutton switch rather than under software control. This is a basic safety requirement and should not be ignored. Computers and software are simply not reliable enough for safety critical functions like this. If something goes wrong with the computer or EMC crashes and causes a runaway you want to be able to stop it. Les Len Shelton wrote: > How do I configure hal to handle two e-stop switches on two different pins? > > > > Thanks, > > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
