[etherlab-users] Regarding SDOs

[Dr.-Ing. Wilhelm Hagemeister]

Hallo Erik,

slaves have the "Slave Information Interface" (SII). This is more or 
less a EEROM which stores necessary information for the master to 
configure the slave.
See also: http://etherlab.org/en/ethercat/faq.php

Vendors can decide to store the SDO-Dictionary in the EEPROM or not. 
Because the EtherCat-Master only works with the information which can be 
fetched from the SII, it will present the SDOs if the dictionary is 
stored in the EEPROM otherwise not.

Regards Wilhelm.

Am 14.09.2016 um 10:19 schrieb Erik Euving:
> Dear all,
>
> I have a question regarding SDOs of a specific slave I use for my setup,
> namely the D1-N-36-E0-2-1-00 drive by HIWIN. As you can see in the
> attached screenshot, when I type the "~> ethercat -p 1 sdos" command, I
> do not receive any feedback from the slave. When I type the same command
> for my other slave (E-Box by Ketels) I get the full list.
>
> My understanding about the inner workings of Ethercat and Etherlab is
> very limited, but could someone explain why a slave would not give me
> the list of available SDOs? I have a manual and I am able to access
> individual SDOs (e.g. "~> ethercat upload -p 1 -t int8 0x6060 0" for
> Mode of Operation) but requesting the full list is not possible.
>
> Thanks!
>
> Kind regards,
> Erik
>
>
> e.j.euving at student.utwente.nl <mailto:e.j.euving at student.utwente.nl> |
> +31641615351
>
>
>
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