2013/5/12 Kent A. Reed <[email protected]> > I admit I struggled to wrap my brain around this notion when I first > read the LinuxCNC docs. > > Syntactically, there is a difference in these pin types simply because > the parsing rules in halcmd say there is a difference. In particular, > the two rules quoted above mean two or more OUT pins can never be > connected together by a signal, two or more IO pins can, or one OUT pin > and one or more IO pins can. >
Looks logical that IO pin not only can be a source of signal (that's what OUT pin does), but also its value can be defined with setp. Just wonder what happens when several IO pins and no OUT pins connect to a signal. An IO pin which value has been defined first (say, with setp) must change all other IO pins values. Must be useful sometimes. Andrew ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
