> > With how cheap realtime i/o is - I don't see the a lure of modbus. > > Modbus non-realtime should be plenty fast enough for spindle control > unless you are doing position control of the spindle. I'm not sure about > RTAI but if you are using preempt-rt mb2hal should be pretty close to > real time.
Think preempt-rt is good enough for ordinary UART but expect exception for example if connected via USB. However think Ethernet is not perfect, maybe only small delay minutes or so in between but still not perfect. Have done hal delay test and it's fine. If I remember correct there are however some delay then using Ethernet minutes in between or so, this might be because other Linux processes related to network is running so something else sent sometimes, did not yet have time to check this carefully. In doubt delay is long enough to have any effect on part quality. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
