It is not to format the MMC card using a standard computer reader, as this can overwrite the card's internal structure and render it permanently unusable.
Gently push and pull the Micro Memory Card out of the CPU slot. unlock s7300 plc password
The CPU will perform a reset, clearing the user memory and resetting the password to default (none). You can now download a new project. Method 4: Password Cracking Tools (Use with Caution) It is not to format the MMC card
SIEMENS Simatic S7-300 (pre-2009 versions) Default Password, How To You can now download a new project
Do you need to running inside the PLC? Share public link
If you do not care about saving the existing PLC program and simply want to repurpose the hardware, you can perform a factory reset to wipe out the password protection entirely. Step-by-Step Hardware Reset Switch the CPU mode selector switch to .