The tool does not support the "Block Privacy" encryption introduced in newer STEP 7 versions or the advanced protection in TIA Portal (S7-1200/1500) www.runmode.com
However, in technical circles, "Can Opener" is often the nickname for or license bypass software used to unlock protected software blocks (DBs, FCs, FBs) within the Siemens ecosystem. simatic s7 can opener v131 33
: It cannot unlock SFC or SFB blocks, as these are stored in the PLC's system memory. The tool does not support the "Block Privacy"
