In some documented cases of ownership transfer, Siemens technical support can provide guidance on recovery. Conclusion
Once the image file is securely saved on your computer, third-party password unlocker executables can be run against the .img file to extract the exact plaintext password from the properties block. 💻 Method 3: Uploading a New Project unlock s7300 plc password hot
If you must keep the existing program, you may need to read the password directly from the MMC card or the PLC's internal memory. Reading the MMC : Use a specialized USB Prommer Siemens Field PG In some documented cases of ownership transfer, Siemens