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Jerther

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Posts posted by Jerther

  1. Sorry to bring this old topic back but I have the same error here. I hit the Monitor mode, then I try to launch the remote display and bam, the error:

     

    ---------------------------
    VisiLogic
    ---------------------------
    Run-time error '91':
     
    Object variable or With block variable not set
    ---------------------------
    OK   
    ---------------------------
     
     
    Hitting OK closes Visilogic completely. It starts doing that after a couple of weeks and the only way to restore functionnality is to completely uninstall visilogic and reinstall again.
     
    Is there a way to prevent this from happening?
  2. Could it be that once a corrupted file has appeared, even if the number of files drops below the recommended maximum, there is still a risk of file corruption?

     

    We have a case here where the number of files was over 64, a corrupted file appeared so we deleted enough files to drop the count to an acceptable amount but then, after a while, the PLC started reporting that files could not be opened due to possible corruption, even if there was only one file.

  3. I have another SD card here with a corrupted file. I can't read the file, even from a pc with a card reader!

     

    Here's how to reproduce such a file: have the PLC (Vision 130) dump UDT files until there are about 30. (I believe just copying them would work also.) Then, in SD Card Explorer, delete them all in one go. At least one corrupted file will appear. If not, try again once. I've found that it is almost always consistent, so I try to delete files in batch of 10 max.

     

    We have this situation with three different sd cards, on three different PLCs in three different cities. I have it also here on our test PLC, and it happens while the power supply is steadily on.

  4. Here's what happens when I try to delete the file via code:

     

    Exception: File name not in 8.3 Dos format
       at Unitronics.ComDriver.SD.checkNameLegality(String name, NameType nameType)
       at Unitronics.ComDriver.SD.deleteFile(String folderName, String fileName, Boolean& sdChannelLockInitiated, String& guid, ProgressStatusChangedDelegate del)
       at Unitronics.ComDriver.SD.DeleteFile(SdFolder sdFolder, String fileName, ProgressStatusChangedDelegate del)
  5. Hi!

     

    We have a Vision 130 PLC connected to a piece of equipment which sends us data through RS232 serial communication. Everything works fine but the PLC stops seeing new data frames for no apparent reason. The only way I've found to get the communication back is to reset the PLC (power cycle). Then it's good to go for anything between 30 seconds and a couple of minutes.

     

    Here is a small video showing what's happening in the serial buffer monitor:

     

    http://screencast.com/t/Z307fIC6v4n

     

    We've hooked up another monitor to the equipment and it never stops sending data frames. The PLC just does not see them until we reset it.

     

    Any idea where to look?

     

    Thanks!!!

  6. Hi!

     

    I have a vlp project here on which I activated the simple web server. Here is what I get:

     

    http://screencast.com/t/CiE2gO3i8ST

     

    As you can see, sometimes it works, sometimes partially, sometimes it starts a downloads and sometimes it shows garbage which seems to come from some datatable. I also tried to change the socket binding to port 8080 with no change. Turning the PLC power off and on again doesn't change anything either.

     

    If I start a new project and only activate the web server with a single page, it works fine.

     

    I've attached the web server config.

     

    The PLC is a: V130-33-T38 rev. A

    OS: 3.9 (06)

     

    Any idea what could cause this?

    post-27427-0-67940600-1430398320_thumb.png

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