: Recovering access to compiled programs when the original project files are unavailable. Legacy Support

The software is typically licensed to the legal owner of the PLC blocks. Users are encouraged to use it strictly for recovery or maintenance purposes and should ensure they are operating within the Siemens industrial security guidelines to protect their plant's infrastructure. PLC programming with SIMATIC STEP 7 - TIA Portal - Siemens

In industrial programming, blocks of code are often protected using the KNOW_HOW_PROTECT