To disable Siemens PLC password protection,
First of all, you need to confirm whether you need to keep the program in the PLC.
There are some password wipers on the Internet that erase the program as well!
In addition, different series of different models of treatment methods are not the same!
If you want to keep the program and remove the password, you can do it
Siemens plc password protection must be removed to decrypt the machine, the machine reads the chip file, and then calculate the password. It's a simple thing. There's no other way.