Prevents opening or editing the project file in Step 7 or TIA Portal. Method 1: S7-300 MMC Password Recovery (Non-Destructive)
A standard external USB memory card reader or a PC/Field PG with an integrated card slot. Disk cloning software (e.g., or S7imgRD.exe ). unlock s7300 plc password
Before attempting to unlock the CPU, identify the type of restriction applied to the hardware or project: Prevents opening or editing the project file in