Siemens S7-200 Password Unlock -

The Siemens S7-200 uses four distinct levels of protection, configured within the using STEP 7-Micro/WIN software:

It deletes the user program, data blocks, and configuration information.

This tool is typically found on the original STEP 7-Micro/WIN installation CD. 3. Hardware Factory Reset (MRES)

Users can read/write data and upload the program. A password is required to download new code or force memory.