SINUMERIK 840D Toolbox v7.x (if searching for legacy systems).
If moving from STEP 7 Classic to TIA Portal, you will need the specific Migration Toolbox components. sinumerik 840d toolbox download
The official source for all Sinumerik software is the Siemens Industry Online Support (SIOS) portal . SINUMERIK 840D Toolbox v7
If the NCU does not appear after installation, the Toolbox version likely does not support the version of TIA Portal you are running. Check the compatibility matrix on the Siemens SIOS website. sinumerik 840d toolbox download
Right-click on the Setup.exe file and select Run as Administrator .