Recent posts to How to read a csv file from local directory of plchttps://forge.codesys.com/forge/talk/Engineering/thread/be2a189cf4/2020-02-27T13:52:42.920000ZRecent posts to How to read a csv file from local directory of plcHow to read a csv file from local directory of plc2020-02-27T13:52:42.920000Z2020-02-27T13:52:42.920000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.com621b5eabecdad45a0edb0796dde4fcdcf664d830<div class="markdown_content"><p><em>Originally created by:</em> KevinR</p>
<p>Hello mkzini,</p>
<p>you have multiple options: </p>
<ul>
<li>
<p>You can use the CAA File library from the CAA Technical Workgroup. There is a good documentation available, which also includes some examples to open/close/read/write/append etc.</p>
</li>
<li>
<p>Another option would be to use the CSV Utility library from the CODESYS Store (requires a Workstation license) -<br/>
<a class="" href="https://store.codesys.com/csv-utility.html" rel="nofollow">https://store.codesys.com/csv-utility.html</a></p>
</li>
<li>
<p>As I understood your application case, you want to save variable persistent based on a file storage and not with an retain memory. So in this case you can use the Persistence Manager.<br/>
--> You can find the AC_Persistence module under the Module section.</p>
</li>
</ul>
<p>Best Regards,<br/>
KevinR</p>
<p><img alt="IMG: ACPersist.PNG" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=3418"/></p>
<p><img alt="IMG: Caa File.PNG" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=3417"/></p></div>How to read a csv file from local directory of plc2020-02-27T13:52:42.770000Z2020-02-27T13:52:42.770000Zmkzinihttps://forge.codesys.com/u/mkzini/https://forge.codesys.com8c83e8ecf2886a0b19d661dfed70e531a4741b1a<div class="markdown_content"><p>Hy everybody,<br/>
i have a big question. So I create a file .csv where i can print the state of some tags. <br/>
These tags are the my machine settings and i can easily import in a excel file.<br/>
Now i try to read back the parameter changed in the .csv file to initialize the machine in according with the changes of the parameters in the excel file.<br/>
I have replaced the .csv file written before with the new file with the modification.<br/>
now my problem is the multiple lines of the file and its dimension (more and less 35Kb)<br/>
Thank You in advanced for any suggestion</p></div>