The safest source for Siemens software is always the official Siemens Industry Online Support (SIOS) portal. The official entry ID for the Primary Setup Tool is 19440762 .
Which is running on your engineering PC?
Alternatively, look for the comprehensive SIMATIC NET software update packages, as PST is frequently bundled inside them. Step 3: Register / Log In
The PST V4.2 is generally compatible with Windows 7 and older Windows 10 versions.
You should only download Siemens software from official sources. Third-party websites offering a "cracked" or "standalone" PST 4.2 download may contain malware, viruses, or outdated versions that can damage your PLC hardware.
Supports Windows 7 (32/64-bit), Windows 8.1, and Windows 10 Pro .
The installer will configure the necessary PC station settings and PG/PC interface hooks. Grant permission if prompted by Windows Security regarding driver installations.
After installation, you will find PST 4.2 under .
Facilitates firmware updates on supported network modules.
While Siemens Primary Setup Tool 4.2 remains an essential asset for maintenance toolkits—especially when servicing older production lines running classic SIMATIC steps—Siemens has largely transitioned its active development focus to .