https://forge.codesys.com/forge/talk/Runtime/thread/a3850d28a9/2021-01-11T12:20:01.398000ZRecent posts to Ethercat Slave DO card abnormal behaviour2021-01-11T12:20:01.398000Z2021-01-11T12:20:01.398000Zfalconhttps://forge.codesys.com/u/falcon/https://forge.codesys.com73480cd2dc758258b069dbb9f948ed871f814b88

<div class="markdown_content"><p>i am using Ethercat Master Softmotion along with Ethercat Slaves AMAX4833 (DI) and AMAX4844 (DO).<br/> DI's are working fine. But in DO's sometimes it happens that some of the outputs does not get updated. </p> <p>my ethercat task's cycltime is 300us and my main task's cycle time is also 300us. </p> <p>A basic test:<br/> if an input is given , it is read by DI card and then in main task. this input's functionality is to turn ON all outputs of an output card for a while . Sometimes it works perfectly fine ... but sometimes on pressing the inputs some of the outputs are not turned ON... it behaves randomly , i have disconnected external circuit/wiring from DO cards outputs as well , still this issue occur randomly. <br/> it may work for 2 to 3 days but then it start doing this abnormal behaviour and only restarting the system solves the issue ... <br/> . kindly guide what may be the possible issues ?</p></div>