[etherlab-users] light ethercat slave: PDO offsets

Boris Skegin boris.skegin.de at googlemail.com
Thu Jan 7 20:35:05 CET 2016


I am "playing" these days with the light ethercat slave by Raz ben
Jehuda http://sourceforge.net/p/ecslave/code/ci/master/tree/
using IgH EtherCAT®  as a master.

I found out that - as it seems to me - the PDO offsets of the hard
coded PDOs in the light ethercat slave
are not calculated properly.

My guess is that it has something to do with Logical Read/Write (LWR,
LDR, LRW) evaluation on the slave's side
as the Arduino branch with blinkLED9 tag seems to be the most advanced
but it has a slightly different implementation
of LWR, LDR, LRW commands if compared to the master branch.

Could anyone confirm that IgH EtherCAT master uses LWR, LDR or LRW  in
order  to calculate PDO offsets?



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