https://forge.codesys.com/forge/talk/Motion/thread/f5bcd6039e/2020-02-27T18:27:23.488000ZRecent posts to How to use MC_Home and Configure Task2020-02-27T18:27:23.488000Z2020-02-27T18:27:23.488000Zvmphuchttps://forge.codesys.com/u/vmphuc/https://forge.codesys.com651fc54e4fb637009a76c197f2c12902eb9f4ced

<div class="markdown_content"><p>Hi all,</p> <p>I've worked with TwinCAT (Beckhoff) for about 1 year, and have some experience with it. Now, I would like to exchange to Codesys, but there are some problems causing me confusedly:<br/> 1. In TwinCAT, when using MC_Home, I have to put Calibration Sensor to INPUT for realizing calibrated position. However, in Codesys, I see that this function block does not need sensor INPUT. So, How does PLC program know when axis reach calibrated position? <br/> And please help me know how to use MC_Home?</p> <ol> <li>In TwinCAT, I can divide task into 2 terms:</li> <li>PLC: Call motion blocks such as MC_MoveAbsolute, MC_MoveVelocity,...</li> <li> <p>SAF: Interpolation task which receive information dynamic from PLC (position, velocity, acceleration, jerk) and generate trajectory to real axis.<br/> But I cannot find similar task in CodeSYS. Does have anyone help me how to organize tasks in CodeSYS? </p> </li> <li> <p>What is best way to exchange data between Codesys and C++ application? I know we have Shared memory solution, but is it real time capability?</p> </li> </ol> <p>Thank all of you for taking time to consider my questions.</p> <p>Mr. PHUC VU</p></div>