Any machine programmed with V13 in 2021 is a cybersecurity risk.
Would you like a step-by-step migration checklist tailored to your specific PLC/HMI models?
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Here’s the direct, deep technical answer:
No. TIA Portal V13 SP1 Update 4 is not "better" for 2021 (or later). It is significantly outdated and inferior for any new project or modern hardware.
Let’s break this down by context, features, compatibility, and security.
Many factories run S7-1200 controllers with firmware V4.0–V4.2, or S7-300/400 series (still supported in V13). Later TIA versions (V14+) dropped support for older firmware or required costly hardware migrations. Update 4 offered:
Siemens moved to a new license structure in V15 and above. V13 SP1 Update 4 still used the classic license model. For companies avoiding subscription or new license costs in 2021, sticking with Update 4 was a financially sound decision.
| Scenario | Recommendation | | :--- | :--- | | Maintaining a live factory line installed in 2016-2018 | YES. Do not upgrade the software. V13 SP1 Update 4 is the most stable build for your existing hardware. | | Designing a new machine from scratch in 2021 | NO. Use TIA Portal V17 or V18. V13 lacks modern security and performance features. | | Recovering an archived project from an OEM | YES. If the OEM sent you a V13 SP1 project, using Update 4 is essential to avoid conversion errors. | | Using new HMIs (WinCC Unified) | NO. Unified requires V16+. |
If you share what specific hardware (PLC/HMI model) you’re using, I can tell you whether v13 SP1 Update 4 is still viable or if upgrading to v16/v17 is the better “2021” solution.
For users maintaining Siemens automation systems in 2021, while TIA Portal v13 SP1 Update 4 siemens tia portal v13 sp1 update 4 better 2021
was a key stability milestone, it is no longer the recommended "latest" state for that version. To ensure compatibility with modern operating systems like Windows 10, Siemens released TIA Portal v13 SP2 Siemens SiePortal Key Version Guide (as of 2021) Version v13 SP1 Update 4
: Released in July 2015. It introduced stability improvements and support for specific safety blocks. Version v13 SP1 Update 9 : The final cumulative update for SP1. Version v13 SP2 : Specifically released to provide official Windows 10 compatibility . It uses the same license as v13/v13 SP1. 1. Installation Requirements & Process To get your system up to date, follow these steps: Check Base Version
: You must have a base installation of STEP 7 V13 or WinCC V13. OS Compatibility : If using Windows 10, skip SP1 updates and install Service Pack 2 (SP2) directly from the Siemens Industry Support Portal Cumulative Updates
: Updates are cumulative; you only need to install the latest one (e.g., Update 9 for SP1) to get all previous fixes from Update 4. Siemens SiePortal 2. Update 4 Specific Improvements
If you specifically require Update 4 for a legacy environment (e.g., Windows 7), it provides: Safety Support
: Automatic support for F-blocks previously marked as "Unsupported" after a project upgrade. Editor Improvements
: Multi-instance tags can be used throughout in Ladder (LAD) and Function Block Diagram (FBD) editors. : Enhanced reliability for STEP 7 Safety Basic V13 SP1 3. Licensing and Project Handling License Reuse : Your existing V13 license key works for SP1 and SP2. Direct Opening
: Projects created in V13 SP1 (including Update 4) can be opened directly in V13 SP2 without a formal upgrade process. www.industry-mobile-support.siemens-info.com 4. Downloading the Software Siemens Support Portal : The most reliable way to obtain updates is through the Siemens Industry Online Support (SIOS) Automation Software Updater
: If TIA Portal is already installed, use the integrated "Automation Software Updater" tool to find and download the latest available updates. Siemens SiePortal direct download links
for V13 SP2 to ensure your 2021 setup is fully compatible with Windows 10? Any machine programmed with V13 in 2021 is
Updates for STEP 7 Safety V13 SP1 - ID - Siemens Support Portal
Siemens TIA Portal V13 SP1 Update 4 remains a surprisingly relevant topic in 2021, even with the availability of much newer versions like V17. For many automation engineers, "newer" doesn't always mean "better," especially when dealing with legacy hardware and established production lines. Why Stick with TIA Portal V13 SP1 in 2021?
The primary reason engineers still search for V13 SP1 Update 4 is hardware compatibility. Many older S7-1200 and S7-1500 CPU firmware versions are natively supported in V13 without the need for complex migrations. If you are maintaining a plant commissioned between 2013 and 2015, V13 SP1 is often the "native language" of those machines.
Stability: Update 4 was one of the final refinements for V13, fixing critical bugs and communication errors.
System Requirements: V13 runs significantly faster on older laptop hardware compared to the resource-heavy V16 or V17.
Safety Integrated: This version provided a stable platform for F-CPU programming that many safety signatures are still tied to. Key Improvements in Update 4
Update 4 wasn't just a minor patch; it addressed specific performance bottlenecks that plagued the original SP1 release.
Compiler Optimization: Faster generation of block code for S7-1500 controllers.
HMI Stability: Improved simulation reliability for Comfort Panels.
Openness Enhancements: Better API support for those using automated workflow scripts. Would you like a step-by-step migration checklist tailored
Windows 10 Support: While V13 was originally a Windows 7 era tool, SP1 Update 4 stabilized its performance on early Windows 10 builds. The "Better in 2021" Argument
Is it actually "better" in 2021? The answer depends on your environment. In a modern greenfield project, the answer is no—you should use the latest version to leverage features like View-of-Things or advanced Motion Control. However, V13 SP1 Update 4 is "better" for:
Maintenance: Avoiding the risk of "upgrading" a working project and breaking library dependencies.
Education: Learning the core logic of TIA Portal without needing a high-end workstation.
Licensing: Users with older floating licenses can often run V13 without the recurring costs or upgrade fees associated with newer versions. Migration Path and Compatibility
If you are using V13 SP1 Update 4 today, you are in a perfect position for future upgrades. This version acts as the "bridge." You cannot migrate a V11 or V12 project directly to V17; you almost always have to step through V13 SP1 first.
💡 Pro Tip: Always keep a virtual machine (VM) with V13 SP1 Update 4 ready. It is the gold standard for opening older Siemens projects and prepping them for the modern era. Conclusion
While Siemens pushes the industry toward V17 and beyond, TIA Portal V13 SP1 Update 4 remains a "workhorse" in 2021. It represents a peak of stability for the mid-2010s hardware generation. For engineers managing existing lifecycles, it isn't just an old version—it’s a necessary tool for reliable automation.
If you'd like to dive deeper into TIA Portal versions, I can help with: Step-by-step migration from V13 to V17 Hardware compatibility checks for specific CPUs Setting up VMs for legacy Siemens software
Which of these would be most helpful for your current project?