On Saturday 30 March 2013 10:48:44 Viesturs Lācis did opine: > 2013/3/30 Gene Heskett <[email protected]> > > > On Saturday 30 March 2013 09:44:36 Viesturs Lؤپcis did opine: > > > Hello! > > > > > > I am having difficulties to understand, why does LinuxCNC not see a > > > input pin change on 7i76 card. > > > What I have: > > > +12 V and GND from PC's psu connected to V-field on TB1 of 7i76. > > > Then from another Vfield pin on TB1 terminal the same 12 V are > > > routed through NC limit switches to pins 0 to 3 on TB6. With > > > multimeter I see that values change from 0 to 12 V DC as the > > > swithces are manually tripped, but I do not see any hal pin changes > > > in LinuxCNC. > > > > > > Step/dir signal outputs from 7i76 are working, so I guess that 5 V > > > DC power is supplied. > > > > > > I would appreciate any tips! > > > > Is that 7i76 have inputs that tolerate 12 volts? /Most/ logic inputs > > are 5 volt rated, and putting in 12 volts from the psu thru a limit > > switch may toast the input. And may toast more... > > Manual says that it is happy within 8-32 V DC...
Ok then. I don't have that manual on site since I'm not using the 7i76. I'll get me coat... Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI- I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ Own the Future-Intel(R) Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
