While the main download links are dead, Siemens often keeps older software in the section for customers with valid service contracts. Log into SIOS and search for:
If you are maintaining or upgrading machinery installed in the late 1990s or early 2000s, you likely need this software. It is essential for: Siemens Simocom U Software Download
Thus, the modern "download" is often a scavenger hunt involving archived FTP sites, community contributions, and a careful eye for file integrity. While the main download links are dead, Siemens
: The main interface for parameterization and commissioning. System Software (Firmware) Siemens Simocom U Software Download
Follow this exact procedure to obtain the legal and safe version.