https://forge.codesys.com/forge/talk/CODESYS-V2/thread/e664319551/2020-02-27T22:16:46.599000ZRecent posts to Writing to file questions2020-02-27T22:16:46.599000Z2020-02-27T22:16:46.599000Zluke.skywalkerhttps://forge.codesys.com/u/luke-skywalker/https://forge.codesys.com18c66ea08a7e3697061ea2913ffcb3ba9e84cf97

<div class="markdown_content"><p>I have found why, so the topic is closed.<br/> I can write files only in the project directory on the PLC (like 'disk_sys\project' or, if mmc or usb connected 'disk_mmc\MOELLER\&lt;name of="" plc=""&gt;\project').&lt;/name&gt;</p></div>

2020-02-27T22:16:42.285000Z2020-02-27T22:16:42.285000Zluke.skywalkerhttps://forge.codesys.com/u/luke-skywalker/https://forge.codesys.com5580b3fd3079c9d110df91847cb52ebc1347fe2f

<div class="markdown_content"><p>I am trying to write an array into a file, using SysFileOpen, SysFileWrite and SysFileClose, from the SysFileLib.lib.<br/> But I can not make it work. When I press a button, this write to file program should start, but it gets stuck when it has to open the file. The output variable for SysFileOpen stays on "0".<br/> The FileName for the SysFileOpen is 'disk_sys\routine1.bin' and the parameter I used is Mode:='w'. I have also tried 'disk_usb\routine1.bin', after connecting a USB stick but it doesn't work either.</p> <p>Does anyone have any idea why it doesn't work? Why does output variable FILE return '0'?</p> <p>Thank you.</p></div>