Jump to content

Getting in Trouble with FTP RAM Server


saleenajohn

Recommended Posts

Hello Everyone, I was working over this for the last 3 months but get no success. I have project using cognex camera to check codes on production line.

I thought it would be nice feature to have actual picture on the screen but I ended stucked with lot of questions -

I thought FTP RAM server in UniLogic should do the job but all I got is black screen widget with "no stream resource displayed"

Unfortunatelly I found just tutorial on Youtube for FTP server/client setup and this lacks more info about storing files on SD card. /there is Root column in FTP server setup which is not visible in video tutorial nor explained/

When I access SD card content via UniApps there is lot of folders seen (UserLogs, Screenshots..Audio, Video etc)

. When using FileZilla to access same SD card on PLC there is just root folder displayed or folder which is created as cache folder for images. But Images I receive end outside this folder.(??) There are also files with name SHADOW_picture.jpg but again outside folder I created for caching.

I can see received pictures on SD card but I can't set their location using FTP RAM Server . In ordinary FTP Server there is "root" column which at least alowes me to set folder where incoming picture(s) will be stored.

I couldn't find working example for getting FTP image on the screen anywhere so I kindly ask if someone can guide me how to get it working.

I also tried to use "fixed image" on external (SD) source. I managed to get only first image received and somehow cannot change it to newly received one via screen reload as you suggested in tutorial. I can see different pictures arrive via FTP (same name but different sizes) but only first one is displayed altough I reload screen.

Kindly Help Me out

Thanks in Advance

Regards: Diksha

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...