https://forge.codesys.com/forge/talk/Motion/thread/64711f8df8/2021-11-18T15:36:37.482000ZRecent posts to Queue underrun: no element left in queue.2021-11-18T15:36:37.482000Z2021-11-18T15:36:37.482000Zridvan-ozturkhttps://forge.codesys.com/u/ridvan-ozturk/https://forge.codesys.comac4c6f7eb307cacbeb6696c8d926662416d57730

<div class="markdown_content"><p>Hello Everybody;</p> <p>3 Axis gantry system. When in use MC_MoveLinearAbsolute or MC_MoveCircularAbsolute FB's running a few merge positions with Transition_Mode:=TMStartVelocity.<br/> Group Axis appears an error when in the movement cycle. <br/> Error Name " Queue underrun: no element left in the queue. ".<br/> But system working cycle principle and generally in normal working but sometimes giving this error.<br/> Apoxitmily 3 times in 500 cycles in one day. By the way, there is no difference between the previous and the next cycle position.</p> <p>Cpu multicore system on Linux runtime. Soft motion task time 4 ms. and Planning task is in " Freewhiling " on some CPU core.</p> <p>Codesys version and 3.5. Sp 17 and SoftMotion library Version is 4.10 </p> <p>Also attached Codesys version export file.</p> <p>Could you please let us know your thoughts and suggestions?</p> <hr/></div>