https://forge.codesys.com/forge/talk/Engineering/thread/fca29b5dbd/2022-03-28T19:33:56.089000ZRecent posts to More COM port in Linux Codesys2022-03-28T19:33:56.089000Z2022-03-28T19:33:56.089000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.com2b72c7690f6adde45b7601d2976b0900a0e89cf1

<div class="markdown_content"><p>The above solution works great. I test it now</p></div>

2022-03-28T19:09:53.329000Z2022-03-28T19:09:53.329000Zsomlioyhttps://forge.codesys.com/u/somlioy/https://forge.codesys.comd0454ea20868a0cedeac39175aefd4e0ecbf7f2a

<div class="markdown_content"><p>yes udev is the way to go. wether config rule works you must test on the device. </p></div>

2022-03-28T19:02:49.123000Z2022-03-28T19:02:49.123000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.com26b0061025e75df3cbc223843890b84a8f9a12f6

<div class="markdown_content"><p>What do we think about this solution.</p> <p>I should create file :</p> <div class="codehilite"><pre><span></span><span class="err">/etc/udev/rules.d/70-persistent-serial.rules </span> </pre></div> <p>and put in it:</p> <div class="codehilite"><pre><span></span><span class="n">ACTION</span><span class="o">==</span><span class="ss">"add|change"</span><span class="p">,</span> <span class="n">SUBSYSTEM</span><span class="o">==</span><span class="ss">"tty"</span><span class="p">,</span> <span class="n">KERNEL</span><span class="o">==</span><span class="ss">"ttyUSB0"</span><span class="p">,</span> <span class="err">\</span> <span class="n">ATTRS</span><span class="err">{</span><span class="n">manufacturer</span><span class="err">}</span><span class="o">==</span><span class="ss">"FTDI"</span><span class="p">,</span> <span class="n">ATTRS</span><span class="err">{</span><span class="nb">serial</span><span class="err">}</span><span class="o">==</span><span class="ss">"AK08GAMY"</span><span class="p">,</span> <span class="err">\</span> <span class="n">SYMLINK</span><span class="o">+=</span><span class="ss">"serial2"</span> <span class="n">ACTION</span><span class="o">==</span><span class="ss">"add|change"</span><span class="p">,</span> <span class="n">SUBSYSTEM</span><span class="o">==</span><span class="ss">"tty"</span><span class="p">,</span> <span class="n">KERNEL</span><span class="o">==</span><span class="ss">"ttyUSB1"</span><span class="p">,</span> <span class="err">\</span> <span class="n">ATTRS</span><span class="err">{</span><span class="n">manufacturer</span><span class="err">}</span><span class="o">==</span><span class="ss">"FTDI"</span><span class="p">,</span> <span class="n">ATTRS</span><span class="err">{</span><span class="nb">serial</span><span class="err">}</span><span class="o">==</span><span class="ss">"AK08G985"</span><span class="p">,</span> <span class="err">\</span> <span class="n">SYMLINK</span><span class="o">+=</span><span class="ss">"serial3"</span> </pre></div> <p>?</p></div>

2022-03-28T18:11:45.493000Z2022-03-28T18:11:45.493000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.com5331e55da731824c17bf7093be583ccf201c243d

<div class="markdown_content"><p><a class="user-mention" href="/u/somlioy/">@somlioy</a> do you have any solution to symbolic link after reboot system ?<br/> I have finished my application with dev/ttyUSB0 i dev/ttyUSB1, but I still creating symbolic link - manually after reboot system. </p></div>

2022-03-19T18:39:08.015000Z2022-03-19T18:39:08.015000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.com6f3e43bf7c73c0df9bf6e73b89fe7dc1ad046b95

<div class="markdown_content"><p>Solution with symbolic link works,until I restart my system.</p></div>

2022-03-19T14:59:53.828000Z2022-03-19T14:59:53.828000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.com99d181164d897bc6aba65217777aae08e095325d

<div class="markdown_content"><p><a class="user-mention" href="/u/eschwellinger/">@eschwellinger</a> I should remove this lines :</p> <div class="codehilite"><pre><span></span><span class="k">[SysCom]</span> <span class="na">Linux.Devicefile</span><span class="o">=</span><span class="s">/dev/serial</span> </pre></div> <p>from /etc/CODESYSControl.cfg file ?</p> <p>I do this and add </p> <div class="codehilite"><pre><span></span><span class="k">[SysCom]</span> <span class="na">Linux.Devicefile.1</span><span class="o">=</span><span class="s">/dev/serial0</span> <span class="na">Linux.Devicefile.2</span><span class="o">=</span><span class="s">/dev/serial1</span> <span class="na">Linux.Devicefile.3</span><span class="o">=</span><span class="s">/dev/ttyUSB0</span> </pre></div> <p>in empty /etc/CODESYSControl_Users.cfg file , but it doesn't work.</p></div>

2022-03-16T09:38:02.138000Z2022-03-16T09:38:02.138000Zsomlioyhttps://forge.codesys.com/u/somlioy/https://forge.codesys.comd14b1fc28d1502d5ed39bebf879813e051e665fa

<div class="markdown_content"><p>You could also do symbolic link from /dev/ttyUSB0/1 to /dev/serial</p> <p>sudo ln -s /dev/ttyUSB0 /dev/serial2<br/> sudo ln -s /dev/ttyUSB1 /dev/serial3</p> <p>Presuming you keep original .cfg file with Linux.Devicefile=/dev/serial, ttyUSB0/1 will then be available as COM3 and COM4.</p></div>

2022-03-15T09:36:40.860000Z2022-03-15T09:36:40.860000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com242bed3c419a32f850c98b7a60e7930ad9d1b8e4

<div class="markdown_content"><p>/etc/CODESYSControl_Users.cfg</p> <p><span>[SysCom]</span> <br/> Linux.Devicefile.1=/dev/serial1 <br/> Linux.Devicefile.2=/dev/serial2<br/> Linux.Devicefile.3=/dev/ttyUSB0<br/> Linux.Devicefile.4=/dev/ttyUSB1</p></div>

2022-03-15T08:47:12.474000Z2022-03-15T08:47:12.474000Zdamian177https://forge.codesys.com/u/damian177/https://forge.codesys.comf465fcea4a01c1b1ee6902501f1ea879e0a4b4d6

<div class="markdown_content"><p>Hi,</p> <p>I am using linux panel PC CPi-A102WR with Codesys. I using two embeded serial ports by Edit the CODESYS configuration file</p> <p>sudo nano /etc/CODESYSControl.cfg</p> <p><span>[SysCom]</span><br/> Linux.Devicefile=/dev/serial</p> <p>And I have<br/> COM1 - COM0(physical)<br/> COM2 - COM1(physical)</p> <p>Now I need more COM port, so I use USB to RS232 nad in the linux I have device : dev/ttyUSB0.</p> <p>What I should modify in /etc/CODESYSControl.cfg file to using my device ttyUSBO like COM3 in codesys ?</p></div>