It is compatible with standard S7 programs ( *.s7p ) and S7 libraries ( *.s7l ).
For high-level languages like SCL or CFC , the tool provides the unlocked block in plain STL (Statement List) code rather than restoring the original high-level source text. Simatic S7 Can Opener V1.31 33
If the original compiled block included internal comments, these remain readable after the block is unlocked. Practical Use Cases It is compatible with standard S7 programs ( *
is a specialized utility designed to manage and remove the KNOW_HOW_PROTECT attribute from Siemens SIMATIC S7-300 and S7-400 program blocks. Practical Use Cases is a specialized utility designed
The tool cannot remove CPU passwords or defeat online access protection; it only works with local project files.
It cannot unprotect SFC (System Function) or SFB (System Function Block) modules, as these reside in the PLC's internal memory and do not contain user-accessible code. Compliance and Best Practices