https://forge.codesys.com/forge/talk/Motion/thread/33477ce84b/2020-02-27T18:43:56.716000ZRecent posts to How to detect encoder inconsistencies2020-02-27T18:43:56.716000Z2020-02-27T18:43:56.716000ZFrancois77https://forge.codesys.com/u/francois77/https://forge.codesys.com342babd91a37706d39d0736853e9b9be273afb58

<div class="markdown_content"><p>Hi,</p> <p>I'm looking for a precise documentation of the following struct SM3_Baisc.FREE_ENCODER_REF. There's lots of variables but no description. Just things like "Parameter 1040". I've been looking for some standard PLCOpen documentation but without luck.</p> <p>I've got a Pi connected to a Wago encoder input (750-631) through EtherCat.<br/> I managed to map the diEncoderPosition variable as the documentation says (<a class="" href="https://help.codesys.com/webapp/_sm_drive_controller_free_encoder;product=codesys_softmotion;version=4.3.2.0" rel="nofollow">https://help.codesys.com/webapp/_sm_dri ... on=4.3.2.0</a>).</p> <p>However, I was wondering how one would check if the encoder had no inconsistencies. Let's say I have a resolution of 5000. I should expect the same number of points for A and B and also a rising edge for every turn on C.</p> <p>At first, I thought the card would handle that but it turns out it almost works like a fast counter input. So there's no such checks or parameters.</p> <p>Would anyone have a clue on how to proceed?<br/> Thanks.</p></div>