Kirk Wallace ha scritto: > On Thu, 2010-02-18 at 09:22 -0500, Dave wrote: > ... snip >> Another way to do it is to use a cheap PLC like the Automation Direct >> Click PLC that has onboard analog and connect to it via Modbus and get >> the values that way. Sure the PLC is smart but who cares as it is dirt >> cheap. >> Better to have too much intelligence than not enough.. ;-) >> >> Dave > > Modbus or any connection other than digital bits won't be in real-time. > Is this an issue with THC? > +1 to the modbus+PLC solution
If you use a serial port, the rtai serial driver and an rs232-rs422 converter, you end up with a real-time modbus communication Marco Paolini ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
