https://forge.codesys.com/forge/talk/Runtime/thread/aefc6b0892/2020-02-27T17:22:23.878000ZRecent posts to QR-code generation2020-02-27T17:22:23.878000Z2020-02-27T17:22:23.878000Ze.kislovhttps://forge.codesys.com/u/e-kislov/https://forge.codesys.come13d183c43c3982de3ef902f0b8e1a64c6677125

<div class="markdown_content"><p>Not sure that it's possible with SoMachine...<br/> I think you should to connect with Schneider support</p></div>

2020-02-27T17:22:22.895000Z2020-02-27T17:22:22.895000ZMajabuchttps://forge.codesys.com/u/majabuc/https://forge.codesys.comc28f5fd287e2181344008094ccb2ba512020b022

<div class="markdown_content"><p>Hello, I tried to install it on SoMachine 4.3 from Scheider, but it returned several errrors.<br/> I'm looking for an example that generates qr code to print from a Modicon PLC programmed with CoDeSys.</p> <p>Could you help me please?</p> <p>Thank you very much!</p> <p>Mariano</p></div>

2020-02-27T17:22:20.119000Z2020-02-27T17:22:20.119000Ze.kislovhttps://forge.codesys.com/u/e-kislov/https://forge.codesys.comc24e68a3a636f904e7a76502026275c408518213

<div class="markdown_content"><p>There is a simple example how to generate a QR-code and show it in web-visu: <a class="" href="https://ftp.owen.ru/CoDeSys3/99_ForumFiles/Example_QrCode_RPI.projectarchive" rel="nofollow">Example_QrCode_RPI.projectarchive</a></p> <p><a class="" href="https://imggmi.com/full/2019/5/17/d6df58c40cb7b7af48b0318d2cc37e29-full.png.html" rel="nofollow"></a> <a class="" href="https://imggmi.com/full/2019/5/17/5c59f967217895661baf38720c5137bb-full.png.html" rel="nofollow"></a></p> <p><strong>Requirements:</strong></p> <p><strong>1</strong>. You need to install <strong>qrencode</strong>:</p> <p><strong>sudo apt-get install qrencode</strong></p> <p><strong>2</strong>. You need to install <strong>OwenStringUtils</strong> library. It included in projectarchive or you can install it separately: <a class="" href="https://ftp.owen.ru/CoDeSys3/04_Library/05_3.5.11.5/02_Libraries/OwenStringUtils_v3.5.4.7.compiled-library" rel="nofollow">download</a><br/> It's nice lib with additional string functions like ASCII/Unicode conversion, formatting and parsing.</p> <p><strong>3.</strong> In example used <strong>SysProcess</strong> library.<br/> So you need to add in <strong>/etc/CODESYSControl_User.cfg</strong> next lines:</p> <p><span>[SysProcess]</span><br/> Command=AllowAll</p> <p>Keep in mind that you need to have write access rights:</p> <p><strong>sudo chmod 0666 /etc/CODESYSControl_User.cfg</strong></p> <p><strong>4</strong>. You need to set write access rights for <strong>/visu</strong> directory:</p> <p><strong>sudo chmod 0666 /var/opt/codesys/PlcLogic/visu</strong></p> <p><strong>5</strong>. You can see qr-code in web-visu, but not in service-visu (CODESYS IDE-visu).</p> <p><img alt="IMG: Bild" rel="nofollow" src="https://cdn1.imggmi.com/uploads/2019/5/17/d6df58c40cb7b7af48b0318d2cc37e29-prev.png"/></p> <p><img alt="IMG: Bild" rel="nofollow" src="https://cdn1.imggmi.com/uploads/2019/5/17/5c59f967217895661baf38720c5137bb-prev.png"/></p></div>