On 03/15/2014 09:42 PM, Sebastian Kuzminsky wrote: > On 03/15/2014 06:21 PM, andy pugh wrote: >> Why are the PGain etc pins in the pid comp bidirectional? >> >> The component itself never changes them. They are fundamentally >> inputs, and it makes things difficult. >> >> Could this be changed in 2.6? > I can't think of a reason why they shouldn't be inputs. > > I went back in the code, all the way back to 2007-11-11, and those pins are STILL RW (the equivalent syntax for what is now IO). That commit is titled :
"change P,I,D,FF0,FF1,FF2 to pins to allow tuning with a pyvcp panel" So, maybe somebody has to check if making these pins inputs would have any effect on the Calibration menu or pyvcp to be able to view/adjust these values. But, I think I already see why. I use the Calibration menu, and when you select an axis, it shows the current values, presumably reading the current value from the pin. if they were inputs, it would be unable to read the value from them. Jon ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
