I worked on one these a few years back, and built a RS485 sniffer, but never got as far as looking at the data. The owner was reluctant to attach wires..
I remember the card in the PC being quite large. It obviously did a lot of stuff. But I do recollect seeing that the stepper drivers, all separate and nicely wired, accepted Step and Dir, and so I would interface at that point with a PC. And other I/O of course. As an aside, we made a hole in the base to use water-based coolant, but the condensation in the rear cabinet was sometimes a problem due to inadequate ventilation. We ran it with the back cover off. Roland On 21 March 2010 22:56, fritz <[email protected]> wrote: > A local campus has an EMCO PC Mill 50, which communicates over RS485 > with a PC (running Win98, bleh!). I was wondering if anyone here has > had any experience with EMCO machines. I'd like to get an idea of how > difficult a retrofit with EMC would be. > > To my eye, it appears that the stepper driver module takes a set of > parallel signals - only a scope or probe will show the exact type. > Other than the "motherboard", there is a PLC that communicates by RS485. > > If I could get the mill running again (insufficient poking-around time), > I could sniff the serial traffic and build a more complete picture of > what goes on. My plan is to come up with something where I disrupt as > little as possible to make it function, to demonstrate the retrofit. > > > ------------------------------------------------------------------------------ > 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 > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
