It does not operate online in the PLC memory nor does it remove CPU-level hardware configuration passwords. Software Download and Installation
The term "S7 Can Opener" is a slang term for a set of third-party utilities designed to interact with Siemens S7 PLCs at a low level. The most famous of these is a command-line tool often simply called s7canopener.exe or associated with the library and "S7-200 Password Cracker" variants.
Targeted specifically at the S7-300 and S7-400 series.