AW: CANOpen and EMC

["Till Franitza" <xfa-at-isw.uni-stuttgart.de>]

Hi!
This should be possible. A student of mine has done something similar. Our
Drive controller sends interrupts to the emc to tell it needs new values. So
the emc is not sceduled by time but interupt driven.
Our Bus protocol is less interesting than CANOpen. A CANOpen-Interface would
be a nice thing to add to emc. I can help you out with information. The
application of my student is running, i think. I will get his documentation
soon.
Till

> -----Ursprüngliche Nachricht-----
> Von: emc-at-nist.gov [emc-at-nist.gov]Im Auftrag von
> Lee.Thornhill-at-colorado.edu
> Gesendet: Mittwoch, 18. Dezember 2002 23:45
> An: Multiple recipients of list
> Betreff: CANOpen and EMC
>
>
>
> Hello all,
> I have a question about the EMC and CANOpen. I thought I'd ask if
> anyone has
> dealt with the CAN network protocol. A crazy eBay purchase has
> resulted in me
> owning 2 CANOpen based servo amplifiers. For those unfamiliar
> with CANOpen it is
> a message based communication protocol, information is issued in
> packets similar
> to the IP protocol. Under the CAN protocol the host controller issues
> information packets over the network which then read and acted on
> by remote
> processors (such as a closed loop servo controller). Over the
> last few weeks I
> began to wonder about adapting the EMC to operate as a CAN network host.
>
> I have been reading the existing EMC documentation but I have not
> taken a look
> at the code. I also must admit that I haven't installed the
> package yet either,
> however, I have plans to do so after the holidays. At this point
> I have no idea
> how hard it may be to get the EMC to work with the CAN protocol
> but I thought it
> wouldn't hurt to ask. :) My goal here is to learn more about
> machine control
> than getting my servo controllers to work.
>
> Since this is my first post to the list here's a little bit about me:
> I am an instrument maker at JILA (jilawww.colorado.edu). I would
> eventually like
> to build my own CNC mill but I am also very interested in the
> aspects of using
> open source software for machine control. My previous experience
> with a lot of
> control software in industry has left me a bit frustrated with
> respect to tweaks
> and upgrades. It's always a shame to see good equpiment hamstrung
> by old software.
>
>
> Thanks,
> Lee Thornhill
>
>