[etherlab-users] UDP communication in Etherlab? Would it be fesasible?

Florian Pose fp at igh-essen.com
Tue Dec 15 06:33:33 CET 2009


On Mon, Nov 16, 2009 at 02:13:44PM +0100, Julian Stoev /  Юлиан Стоев wrote:
> There is however one question, which was formulated recently - how we
> can communicate with other real-time systems, for example LabView.
> Part of our algorithms (visual) works in LabView. The result is a
> sequence of real numbers with sampling rate approximately 100Hz. We
> know it would be quite possible to use real-time UDP on a dedicated
> cable to make this data exchange fast and deterministic.  LabView is
> capable to output data on UDP, so it is OK from that point. But we
> have no means to read it from Etherlab now. This would be possible for
> example in RTAILab, as far, as I know, but we would not have Ethercat
> capabilities, which is important for us.

Communication over UDP is not deterministic in general, but on a 'clean'
network it will usually work. Are you aware of the PdCom library on
etherlab.org? You can easily write a kind of communication process with
it to push/pull data to/from other destinations/sources.

-- 
Best regards,
Florian Pose

http://etherlab.org



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