Integrates critical vulnerability fixes protecting industrial networks against unauthorized access.

Visual Basic (VB) scripts executed on Comfort Panels experience fewer runtime errors during intensive data logging tasks.

Improves the stability of online diagnostic connections to S7-1200 and S7-1500 PLCs.

Where to get Update 4 and official support

Windows 7 (64-bit Professional/Enterprise/Ultimate) and Windows 8.1 Professional.

Headline: Optimizing Your Engineering Workflow with TIA Portal V13 SP1 Update 4

Because Siemens updates are cumulative, Update 4 contains all previous fixes from Updates 1, 2, and 3. You do not need to install them sequentially. Prerequisites

Intel Core i5-3320M (or equivalent), 3.3 GHz or higher RAM: 8 GB minimum (16 GB recommended for large projects) Hard Disk: SSD with at least 10 GB of free space Screen Resolution: 1920x1080 optimal How to Install TIA Portal V13 SP1 Update 4

Disable your antivirus software temporarily, as aggressive heuristic scanners can block the registry modifications made during installation. Restart your computer to clear out any locked system files. Step 4: Run the Installer