These tools communicate with the PLC via MPI or Profibus and attempt to read the password hash directly from the CPU's memory.
Use a tool like S7ImgRead to create a raw image of the MMC. Hex Editing: Open the image in a Hex Editor. unlock s7-300 plc password
from the PLC, or are you trying to gain access remotely via a network connection? These tools communicate with the PLC via MPI
These specifically target the .WLD files or MMC images to reveal the password. unlock s7-300 plc password
This wipes the MMC (Micro Memory Card) and internal RAM. The password is gone, but so is the logic. Method 2: Retrieving the Password from the MMC