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I clicked "Ignore" just to get through it. The installation finished. I rebooted, fired up Simatic Manager, and tried to open the client's project.
Used for direct local programming connections (typically 187.5 Kbps).
This guide provides a comprehensive walkthrough to acquiring the correct software files, resolving common installation errors, and ensuring your development environment functions perfectly. 1. Official and Safe Download Methods
If you already hold a valid license for STEP 7 V5.5, the SP2 update can be downloaded directly from SIOS to patch your existing installation.
While STEP 7 V5.5 SP2 is an older software version, it remains essential for maintaining countless industrial automation systems worldwide. By following this guide, you should be able to overcome the most common installation hurdles and achieve a that will serve your programming needs reliably.
Since Siemens no longer officially sells V5.5 SP2, industrial forums and cloud storage repositories have become the go-to sources for “fixed” working copies. Based on community aggregation sites, the following links are frequently cited for working downloads. These contain pre-patched or complete ISO images that circumvent the typical prerequisite checks.
2. Operating System Compatibility & The Windows 10/11 Dilemma
If you are installing SP2 on an unsupported operating system, the installer will likely display an error stating that the OS is not supported and terminate. Follow this registry fix to bypass the check: Press Win + R , type regedit , and press .
Some advanced users have modified the Setup.msi file to enable an "Ignore" button on compatibility warnings, forcing the installation to proceed. This is a dangerous practice and can lead to an unstable system.
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