I understand you're looking for — but I need to give you an important caution first.
If you cannot obtain or install this specific version, consider these alternatives: Simotion Scout Tia 5.3.1.0 Download
The download package is substantial, often divided into multiple ISO files or a compressed self-extracting archive, including the SCOUT TIA components, the Cam Tool, and the necessary drive support packages (SSPs). Conclusion Siemens SIMOTION SCOUT TIA V5
A valid license for SCOUT V5.x is required to use the software beyond the trial period. Industry Support portal Siemens online forums Local Siemens
: Note that because this is industrial encryption software, you must have a registered Siemens account with "Download of restricted software" authorization.