: It cannot unlock System Function Blocks (SFBs) or System Functions (SFCs), as these are stored in the PLC's internal system memory rather than the user project.
Modify or troubleshoot code when the original machinery supplier or system integrator is no longer available for support. Simplify Management: Simatic S7 Can Opener V1.31 33
: If the original block was compiled with comments, they remain readable once the block is unlocked. : It cannot unlock System Function Blocks (SFBs)