Siemens strictly controls the distribution of SimoCom U due to international export laws:
For older firmware, the SIMODRIVE 611U Toolbox V3.4 is still archived for specific hardware revisions. Important Download Restrictions Siemens Simocom U Software Download
Siemens SimoCom U is officially distributed through the Siemens Industry Online Support (SIOS) portal . SimoCom U V14.03.02. Siemens strictly controls the distribution of SimoCom U