https://forge.codesys.com/forge/talk/Engineering/thread/363d335a26/2020-02-27T14:28:39.764000ZRecent posts to How to implement a CANOpen Master?2020-02-27T14:28:39.764000Z2020-02-27T14:28:39.764000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.com8868f1697d472b38a2391b06f47d039fbf9b2f59

<div class="markdown_content"><p>When you enable the expert settings in the configuration of the CANopen Remote Device, you will get to see the Tab "Receive PDO mapping" and "Send PDO mapping".<br/> When you select an RPDO of TPDO, you can click on Edit (right bottom side of the screen).<br/> Here you can edit the Transmission type for the specific PDO and set it for example to "cyclic- synchronous".</p></div>

2020-02-27T14:28:39.250000Z2020-02-27T14:28:39.250000Zyue-qi-qihttps://forge.codesys.com/u/yue-qi-qi/https://forge.codesys.com442532fe066f862c4221973a81d13287f2b1c7b3

<div class="markdown_content"><p>Thanks,you are right.</p> <div class="codehilite"><pre><span></span> <span class="nv">Another</span> <span class="nv">question</span> <span class="nv">is</span> <span class="nv">that</span>, <span class="nv">On</span> <span class="nv">the</span> <span class="nv">Canopen</span> <span class="nv">Master</span> <span class="ss">(</span><span class="nv">Canopen</span> <span class="nv">manager</span><span class="ss">)</span>,<span class="k">if</span> <span class="nv">I</span> <span class="nv">want</span> <span class="nv">to</span> <span class="k">send</span> <span class="nv">a</span> <span class="nv">process</span> <span class="nv">data</span> <span class="nv">to</span> <span class="nv">a</span> <span class="nv">slave</span>, <span class="nv">I</span> <span class="nv">can</span> <span class="nv">configurate</span> <span class="nv">it</span> <span class="nv">in</span> <span class="nv">the</span> <span class="s2">"</span><span class="s">CANOpen I/O mapping</span><span class="s2">"</span> <span class="nv">window</span> <span class="nv">to</span> <span class="nv">an</span> <span class="nv">application</span> <span class="nv">variable</span>. <span class="nv">The</span> <span class="nv">PDO</span> <span class="nv">will</span> <span class="k">send</span> <span class="nv">whenever</span> <span class="nv">the</span> <span class="nv">variable</span> <span class="nv">changes</span>. <span class="nv">What</span> <span class="nv">should</span> <span class="nv">I</span> <span class="k">do</span> <span class="k">if</span> <span class="nv">I</span> <span class="nv">want</span> <span class="nv">PDO</span> <span class="nv">to</span> <span class="nv">be</span> <span class="nv">sent</span> <span class="nv">cyclicly</span>? <span class="nv">I</span> <span class="nv">know</span> <span class="nv">that</span> <span class="nv">on</span> <span class="nv">the</span> <span class="nv">Canopen</span> <span class="nv">Slave</span>, <span class="k">if</span> <span class="nv">you</span> <span class="nv">want</span> <span class="nv">a</span> <span class="nv">PDO</span> <span class="nv">to</span> <span class="nv">be</span> <span class="nv">sent</span> <span class="nv">cyclicly</span>,<span class="nv">you</span> <span class="nv">can</span> <span class="nv">configurate</span> <span class="nv">the</span> <span class="s2">"</span><span class="s">bus cycle options</span><span class="s2">"</span> <span class="nv">in</span> <span class="nv">the</span> <span class="s2">"</span><span class="s">CANOpen I/O mapping</span><span class="s2">"</span> <span class="nv">window</span>,<span class="nv">but</span> <span class="nv">there</span> <span class="nv">is</span> <span class="nv">no</span> <span class="nv">such</span> <span class="nv">an</span> <span class="nv">option</span> <span class="nv">in</span> <span class="nv">the</span> <span class="nv">Canopen</span> <span class="nv">Master</span> <span class="ss">(</span><span class="nv">Canopen</span> <span class="nv">manager</span><span class="ss">)</span>. </pre></div> </div>

2020-02-27T14:28:37.904000Z2020-02-27T14:28:37.904000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.com7951fc3e8adfbbfded9ad8f39df4252024177b09

<div class="markdown_content"><p>No, as mentioned, just add the .eds file of the sensor.</p></div>

2020-02-27T14:28:37.431000Z2020-02-27T14:28:37.431000Zyue-qi-qihttps://forge.codesys.com/u/yue-qi-qi/https://forge.codesys.comc64f79a9ae67f63fab2c79724637274df31dc3f6

<div class="markdown_content"><p>I mean that I want the same PLC to be a Master to manage the CAN Network,and can also implement PDO sending and receiving.<br/> To manage the CAN Network,I add a "CANbus\CANOpen Manager" device.<br/> At the same time,I want this PLC to receive a process data (e.g. an angle value from a CANOpen angular sensor),and sending a process data to all the slave node(e.g. a height value that the PLC measures). <br/> Then how should I cofigure the CANbus? do I need to add a "CANbus\CANOpen Local Device" on the same PLC?</p></div>

2020-02-27T14:28:36.873000Z2020-02-27T14:28:36.873000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.comc8efeb284a3199e12648095e6d9738880d21c6fa

<div class="markdown_content"><p>You don't have to do this in the "Master".<br/> This is done in the "Slave" configuration.<br/> The configuration in the slave is used by the master.</p></div>

2020-02-27T14:28:35.416000Z2020-02-27T14:28:35.416000Zyue-qi-qihttps://forge.codesys.com/u/yue-qi-qi/https://forge.codesys.com4d3d87d9fcfb1b4b396c4cc3a9066801f7b2c405

<div class="markdown_content"><p>Thanks,So after I Add a Canopen manager,and want to use this node as a master, how to configurate this local node to Rx and Tx PDOs?</p></div>

2020-02-27T14:28:34.937000Z2020-02-27T14:28:34.937000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.com5e95f2e378480513331aeca726509997a7862e68

<div class="markdown_content"><p>Right click on your device (PLC) and choose Add Device.<br/> Select the CANbus.<br/> When the CAN bus is added, click on it and add the CANopen_Manager.<br/> To this CANopen Manager you can add your CAN nodes.<br/> When your device is not selectable, you should first install it (Tools=&gt; Install Device or Tools=&gt;Device Repository).<br/> Every CANopen node normally has an .eds file which you need to install.</p> <p>When it is installed you can select it as node.</p> <p>You don't have to add any libraries, this is automatically done.</p></div>

2020-02-27T14:28:34.421000Z2020-02-27T14:28:34.421000Zyue-qi-qihttps://forge.codesys.com/u/yue-qi-qi/https://forge.codesys.com52dba08c8f856d03858d745fa8071a1c8f9883a3

<div class="markdown_content"><p>Does anyone have experence to implemet a CANOpen Master under CoDeSys V3.5?<br/> I have no idea to begin with. <br/> Is it necessary to Inster a CANOpen Manager? Is it enough only by configurating the CANOpen Maanager? </p> <p>anyone can give some tips?</p></div>