The primary goal was to address user feedback regarding system performance and stability. A key user report from that time noted a significant improvement in system responsiveness compared to earlier versions. These improvements were not just superficial; they addressed underlying software efficiencies that made daily engineering tasks smoother and more reliable.
Upgrading a project from TIA Portal V13 SP1 Update 4 to a newer version involves opening the project in the newer TIA Portal software. The software will detect the older version and prompt you to upgrade the project. This is a one-way process: once a project is upgraded to V15, it cannot be opened again in V13 SP1. Tia Portal V13 Sp1 Update 4
To apply Update 4, you must have TIA Portal V13 SP1 already installed on your machine. The update package is cumulative, meaning it includes all fixes from Updates 1, 2, and 3. The primary goal was to address user feedback
| Issue | Likely Solution | |--------|----------------| | Update fails / rollback | Run Windows Update, disable antivirus, free >10 GB disk space. | | Project won’t open after update | Recompile hardware & software (Right-click device → Compile → Rebuild all). | | PLCSIM not working | Reinstall PLCSIM V13 SP1 Update 4 (separate installer). | | Slow performance | Clear project cache: Options → Settings → Compilation → Clear compilation data . | Upgrading a project from TIA Portal V13 SP1
Here are some of the most impactful issues resolved in Update 4 (based on Siemens release notes):