Communication error between the SIPROTEC 7sj8011 relay (FW: 4.79)
and the DIGSI 4.94 software.
I'm using Windows 10 PRO.
I installed all the drivers.
The device has a USB connection only.
Please help me.

Hello  dox365;

The information and downloads from this document might be helpful:

"Important!

To use DIGSI 4 V4.94 Service Pack 1 on a PC with Windows 10 .Net Framework V3.5 must be installed manually. A respective message during the installation of DIGSI 4 like in older version is not displayed with DIGSI 4 V4.94 Service Pack 1. If .Net Framework V3.5 is not installed on the PC IEC 61850 devices can not be opened. Please do install .Net Framework V3.5 manually to open IEC 61850 devices again."

Please check this webpage and see if this can solve your issues:

https://support.industry.siemens.com/cs/pe/en/view/109740982

Hope this helps,

Daniel Chartier