https://forge.codesys.com/forge/talk/CODESYS-V2/thread/8d3b0dcaa7/2020-02-27T21:18:59.251000ZRecent posts to regarding can communication2020-02-27T21:18:59.251000Z2020-02-27T21:18:59.251000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.comc74f9800a3492378a2e4f5fedd2eb392ba2e56e8

<div class="markdown_content"><p><em>Originally created by:</em> Carmichael_keith</p> <p>Hi Hassi, can I just confirm that you are saying that parameter 1 is the CAN Master Node ID?</p></div>

2020-02-27T21:18:57.815000Z2020-02-27T21:18:57.815000Zhassehttps://forge.codesys.com/u/hasse/https://forge.codesys.comf24ce9288517ebcb8f4c4630f60ad40ff88aae73

<div class="markdown_content"><p>Hi, Rajat Bansal</p> <p>I think that you have to use the function Can_SetFilter located in 3S_CanDrv.lib.</p> <p>You have to specify the valid COB id:s you want to receive.</p> <p>The first parameter is set zero (first CAN Controller), second parameter always 0. Third parameter is the COB:ids allowed first 16 (MSB) the 16 (LSB) Ex. 0x2010201 lets PDO with COB Id 0x201 pass.</p> <p>I've had the same problem when using a device..</p></div>

2020-02-27T21:18:53.797000Z2020-02-27T21:18:53.797000Zrajatbhttps://forge.codesys.com/u/rajatb/https://forge.codesys.combf56d8328af2d56a567e110ae85165add65f878d

<div class="markdown_content"><p>I am using straight Codesys</p> <p>version 2.3. I have been checking CANOpen Communication using the sample</p> <p>project CANSlaveXS.pro using RM CANView USB device and target as CCPXS 10.4 . I have following</p> <p>obsevations and queries. Kindly have a look and give your comments.</p> <p>1) I am able to transmit PDOs from the sample project to the RM CANViewUSB</p> <p>device Interface. But unable to recieve PDOs to my application.</p> <p>{ This I can say because I am receiving PDOs in RM CAN-Device Monitor with</p> <p>same COBID &amp; data bytes as present in Global variable pCanDevPDO_Tx in</p> <p>CanOpen implicit Variables(Constant) Global object In Resources tab. But I</p> <p>am unable to recieve databytes but the COBID in Global variable</p> <p>pCanDevPDO_Rx sent by RM CANView USB device }</p> <p>2) Also in the variable list in parameter manager if i define some variable</p> <p>as read-write then it does not reflect in the PLC Configuration PDO mapping.</p> <p>In that case how can I map those Read-Write PDOs as like what is done in the</p> <p>sample project?</p> <p>Cheers n Regards,</p> <p>Rajat Bansal</p></div>