simaticml-decoder is a command-line tool that translates exported SimaticML LAD/FBD blocks from TIA Portal V21 into readable SCL code and generates a JSON metadata sidecar. It is designed for PLC developers and automation engineers who need to analyze or migrate PLC logic efficiently.
simaticml-decoder is an Other dev tools product. It focuses on converting exported SimaticML LAD/FBD blocks into readable SCL code and structured metadata for easier PLC code analysis. It is built as an open-source project for PLC developers and automation engineers. simaticml-decoder is open source under the MIT license. It runs on the command line.
Czarnak builds and maintains simaticml-decoder, and the product first shipped in 2026. Development happens publicly on GitHub with 55 commits in the last 90 days. Key capabilities include LAD to SCL translation, JSON metadata export, and TIA Portal V21 support.
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