Saving a file to USB stick

Codesys V2.3 🇬🇧
swtroelofs
2009-02-20
2009-03-03

  • swtroelofs - 2009-02-20

    Hi all,

    Here's another programming question. I am using a linux based PLC (Berghof) and I want to save a file to an attached USB stick.

    I can save a file to the program directory ( /flash/plc/applications/ ) but I need to save the file to /media/usb0/

    How can I change the location of the file?

    This does not work:

    StLogFile := '/media/usb0/LogFile.txt'

    SysFileOpen(StLogFile, 'w');

    Thanks!

     

  • kberlin - 2009-02-27

    Hello,

    Do you get any error code?

    I've done a project on a Berghof Dialog Controller where I saved to a USB-memory.

    The line:

    dwFileNumber:=SysFileOpen(sFileName,'w');

    where sFileName was /media/usb0/filename.csv worked fine for me. It could be possible that the path to the file had a ending /

    If you telnet to the device can you access /media/usb0 then?

    Another tip is to use something like

    xUSBPlugged:=INT_TO_BOOL(BGH_USB_GETPLUGSTATUS(0));

    to make sure that the USB-key is plugged in. The function is available in the BghSysInfo_Vxx.lib library (xx=the version number).

     

  • swtroelofs - 2009-03-03

    Thanks for your tips, I found the problem!

    I was using uppercase letters (like: /Media/USB0 )

    When I tried lowercase text the problem was fixed.

     

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