Simatic S7 Can Opener V1.31 33 Link -

It is compatible with standard S7 programs ( *.s7p ) and S7 libraries ( *.s7l ).

The software is typically licensed to the legal owner of the PLC blocks. Users are encouraged to use it strictly for recovery or maintenance purposes and should ensure they are operating within the Siemens industrial security guidelines to protect their plant's infrastructure. PLC programming with SIMATIC STEP 7 - TIA Portal - Siemens Simatic S7 Can Opener V1.31 33

is a specialized utility designed to manage and remove the KNOW_HOW_PROTECT attribute from Siemens SIMATIC S7-300 and S7-400 program blocks. It is compatible with standard S7 programs ( *

If the original compiled block included internal comments, these remain readable after the block is unlocked. Practical Use Cases PLC programming with SIMATIC STEP 7 - TIA

It removes the "KNOW_HOW_PROTECT" keyword from compiled blocks, allowing users to view the underlying code.