S7-1200 direct http access

Hi all,

I've wrote an app for auto download of Datalogs stored in internal webserver of S7-1200. It works fine. But now I need to delete the downloaded datalogs and it won't work.

I've setup a direct access link from it's html code and I've verified that through wireshark. The link may looks like "https://PLC's IP address/FileBrowser/DeleteFile?Path=/DataLogs/DatalogName.csv". But when I requests this link it returns "File operation not permitted - no referrer". It does not matter if its requestet in my app, web broser ot it's sended by direct TCP/http message. Everytime it has the same result.

So my question is if there is any way to remote delete the datalog. The best way is with no changes in PLC configuration.

I'll be gratefull for any help.

Thanks a lot.

MC

Hi michal,

Would you mind sharing your app?  I also need that kind of application.

Thanks!

see

https://support.industry.siemens.com/tf/ww/en/posts/simple-webserver-data-log-download-url/138162/?page=0&pageSize=10

The trick is to add a http referer header. Use something like curl or wget for that. Here a url to get the data, not sure how to delete it but along these lines...

The forum doesn't allow me to paste the url... sorry see post above.

I'm done with this textbox...