[etherlab-users] EtherLab and Beckhoff Ethercat on netX500

Thomas Elste thomas.elste at imms.de
Thu Feb 28 11:21:28 CET 2008

> I heard this question hundreds of times before and therefore created a
> FAQ list with a single entry (for now...) :-)
> http://etherlab.org/en/ethercat/faq.php#slave
Nice work. Nevertheless one is at least still stuck with the NetX. As
the it has no real EEPROM for the SII data and just emulates it. And
Hilscher apparently forgot to implement the write feature to the
EEPROM (emulated or not). So there is no way in getting the mandatory
information into it.
(At least writing to the EEPROM was not possible when I tested this
half a year ago. I think I will try again with more recent versions of
the firmware.)

> This is already done for the next release. The approach is, that a
> domain uses the LRD datagram, if it contains only inputs, the LWR
> datagram, if it contains only outputs, otherwise the LRW datagram. So
> you'll have to configure separate domains for inputs and outputs (which
> is generally a good idea).
That sounds very good.


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