At the risk of answering a different question than the one that was asked....
I'd start the conversion to LinuxCNC one step back up the chain. I'd abandon the old servo drive electronics but keep the servo motors. I'd buy a good servo control solution that plays well with LinuxCNC. There are a couple of good options there. I've used Mesa Electronics and was very happy with the quality and support. Sell the old servo controller to some poor schlub trying to keep his old milling machine running and step into the modern world with robust, reliable and maintainable electronics and the latest version of LinuxCNC. Prepare to be surprised at how nice that old iron runs with new controls and new control software. It's almost like getting a new machine for 5%-10% of the price, and you'll probably find that it's much easier to upgrade the servo drive electronics than trying to double clutch LinuxCNC into working with some ancient RS232 driven servo drive that's likely to die next year anyway. I bill aggravation at $200 per hour, and trying to use the old servo drive looks like tens of thousands of dollars worth of aggravation to me. :-) YMMV. You'll need a DC power supply to run the servo drives. If you can't reuse the one from the original equipment, you can buy a new one for not too much money. The AnTek power supplies are very nice, and also supply low voltage DC for control applications, limit switches, etc. http://www.antekinc.com On 03/08/2015 08:33 AM, andy pugh wrote: > On 8 March 2015 at 12:14, Andreas Pettersson <[email protected]> wrote: >> My guess is that you would need 2x RS232, one for Rx and one for Tx, to >> achieve the speed necessary, and a SPI interface card that could talk >> dual channel properly. > I think if I wanted a serial channel that I knew how to drive with low > latency I would be looking at the cheapest Mesa card and a custom > driver for the UART module. > (I have already used it for realtime Arduino comms) > ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
