https://forge.codesys.com/forge/talk/Runtime/thread/9f5fa0632b/2020-02-27T17:14:54.427000ZRecent posts to EtherCat performance?2020-02-27T17:14:54.427000Z2020-02-27T17:14:54.427000ZB.Rothhttps://forge.codesys.com/u/b-roth/https://forge.codesys.com70daa2c94e8a42cdd05bd04bea0fce46e7203be9

<div class="markdown_content"><p>Hello,</p> <p>using softmotion with the PI on Ethercat is working but has a problem. I tested with 3 drives of Schneider Electric (LXM32M, LXM32i and ILX)<br/> ILX with the generic DS402. LXM32i and LXM32M are already integrated in Softmotion.<br/> The runtime of the Pi is not stable enough so you will have a big jitter and this leads to some trips on the drive.<br/> Maybe a realtime-extension for the Linux will help?</p> <p>But to show the posibility of softmotion with Ethercat it is impressive.</p></div>

2020-02-27T17:14:51.716000Z2020-02-27T17:14:51.716000Zjzhvymetalhttps://forge.codesys.com/u/jzhvymetal/https://forge.codesys.com1b27c3364f0812572a068f6b82be96a464ed13f2

<div class="markdown_content"><p>I acquired a EtherCat Servo drive to test with the PI runtime. Right now I added a second USB Ethernet adapter and use the PI Ethernet port for Ethercat. I had to set the MotionBus cyclic to 6ms for smooth motion. When it was set for the default 4ms motion would jerk during a MoveVelocity. Also the EtherCat Servo I am using has to use the DS402 profile because it does not have a SoftMotion device file for CoDeSys.</p> <ol> <li>What performance can be expected with EtherCat on the PI? </li> <li>Is there anything that can be optimized in the PI to run the motion bus faster?</li> <li>Is there a performance hit if there is not a native SoftMotion device file and DS402 profile is used?</li> </ol> <p>It is very cool to see the power of CoDeSys in a micro-controller. It would be nice to have some data on expected performance.</p></div>