Manufacturers who standardized their equipment around specific S7-1200/1500 architectures can continue shipping stable automation code. Conclusion
: Users report that this update makes the software run noticeably smoother, with reduced lag times and a more responsive interface compared to V13 SP1 Update 1 or 2. Enhanced Programming Features Multi-instance tags
license and optimized fail-safe instructions (like TON, TOF, and TP) that use less memory and offer better stability. Safety and Bug Fixes
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: The update fixes unexpected compilation errors when processing complex Structured Control Language (SCL) code blocks.
You cannot migrate a classic STEP 7 V5.5 project directly into TIA Portal V18 or V19. The project must first be converted into TIA Portal V13 SP1. Update 4 ensures this conversion happens without losing block properties or hardware configurations.
Beyond the major pillars of stability, hardware, and security, Update 4 introduced several "quality of life" improvements that made the engineering experience smoother. Safety and Bug Fixes This public link is
Move your current platform licenses from your local storage to a backup license drive or network storage space before altering software configurations.
and slightly higher CPU resources than earlier V13 sub-versions. Functional Enhancements Safety Support:
The update resolves license recognition errors affecting the tier, preventing unprompted activation errors during compilation. 4. PLC Proxy Extensions Can’t copy the link right now
To ensure Update 4 runs optimally, always install the packages in this specific sequential order: Install TIA Portal V13 Base Application. Install Service Pack 1 (SP1) for V13.
For those using , Update 4 is a non-negotiable.
: Update 4 introduces improved cryptographic communication protocols between the TIA Portal workstation and the PLC CPUs.
Going online with simulated S7-1200 or S7-1500 controllers often resulted in random communication timeouts in base versions. Update 4 rebuilds the virtual communications layer. Disconnecting cables, cycling power, or putting your PC into sleep mode no longer causes catastrophic driver crashes or forces a software restart. 3. Bulletproof Fail-Safe Compilation