
Ed Welch
January 21, 2026
All TIA Portal components (STEP 7, WinCC, Startdrive, Safety) must match the same version level (e.g., all must be V13 SP1) to prevent installation failures or runtime errors.
You need a Siemens web account (free) and a valid software license for V13 SP1. Tia Portal V13 Sp1 Update 4
Improved support for the STEP 7 Safety Basic V13 SP1 license, ensuring smoother activation and usage. All TIA Portal components (STEP 7, WinCC, Startdrive,
Open TIA Portal → → Look for: Version V13 SP1 and Update n All TIA Portal components (STEP 7
Compiler stops at 20% with "Internal error (293:4205)." Solution: Delete the implicit System folder within your PLC data blocks. In Update 4, a specific cache file corrupts. Regenerate the blocks.
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