[etherlab-users] new beckhoff xml has DWORD variables
Florian Pose
fp at igh-essen.com
Tue Jun 16 09:50:38 CEST 2009
On Fri, Jun 12, 2009 at 11:12:08AM +0200, Julian Stoev wrote:
> On Thu, Jun 11, 2009 at 7:23 PM, Florian Pose<fp at igh-essen.com> wrote:
> > Please try to enable the block's control input. Does it work then?
>
> Yes, it works now. I give control input value of 0. Thanks a lot!
> Can you please explain a little more what was the technical issue in this case?
Yes, sorry, I first wanted to know, if this is indeed the reason for your
problem.
Beckhoff did a strange thing in the redesign of the device: It coupled
the latching of the input sync manager to the writing of the output sync
manager, even if the outputs are not used (SDO 1C33:01 "Sync mode" is 34
by default, see slave documentation). Unfortunately this setting, even
if changed by the master, is overwritten by the slave after going to
SAFEOP. We discussed that with the slave developers and I think they
realized, that this is a bad behaviour. I hope, this will be changed in
the next slave firmware.
For now, you can help yourself with connecting the block input to a
ground source.
--
Best regards,
Florian Pose
http://etherlab.org
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