Hello,
I use the ICE board as a slave to connect the master, when the ICE board is at the last of the slaves , the only port that can connected is the "in" port , and when change to connect the "out" port, it can't connected(or scanned by the Twincat). But when use the ICE board in the middle of the slaves, the Two ethercat port can both used as in and out. Another thing is the drive i used can work with the both ports when it is used at the last of the slaves.
Why this happened? Is it the problem of the ICE board or ...? Thank you for your answer.