[etherlab-users] ERROR: Failed to determine PDO sync manager for FMMU on slave 0!

[Florian Pose]

Hi,

On Wed, Mar 25, 2009 at 04:29:08AM +0100, Uwe Hermann wrote:
> See below for what I did so far and output from the relevant commands.
> I guess I'm doing something fundamentally stupid somewhere, but I just
> cannot figure out what exactly that is. My current guess for the root
> cause of the problems are these errors:
> 
> EtherCAT WARNING: PDOs configured for SM2, but slave 0 does not provide the sync manager information!
> EtherCAT ERROR: Failed to determine PDO sync manager for FMMU on slave 0!
> 
> I'm not sure how to fix it, though. Maybe some EEPROM contents are
> bogus? Using TwinCAT on Windows the synchorous mode operation seems to
> work fine from what I can tell.

TwinCAT uses the XML device descriptions to get the sync manager
addresses. The IgH master relies on the SII contents. Please have a look at

http://etherlab.org/de/ethercat/faq.php#incomplete-sii

-- 
Best regards,
Florian Pose

http://etherlab.org