Posted 2 Feb 2016 Hello all, I'm new to Beckhoff and running a PLC with EtherCAT I/O slaves. If one of the slaves is disconnected from the network (power loss or network cable broken) the whole PLC freezes, is there a way of configuring ethercat such that it remains (partially) operational, thus showing me the I/O on the unaffected stations. Share this post Link to post Share on other sites
Posted 28 Apr 2016 This is the legacy of EhterCAT but you can define Sync Unit to solve the issue. You should define Sync Unit for each of remote I/Os. In that case, if the power of one of your remote I/Os has been lost the other part of your network and remote I/Os works without problem. The attached image shows the Sync Unit Assignment . Share this post Link to post Share on other sites