It is highly recommended to create a backup of your STEP 7 project before using the utility to prevent accidental data loss. Technical Constraints
The tool operates on S7 programs ( .s7p) and libraries ( .s7l) stored on a hard disk.
The primary purpose of S7 CanOpener is to provide access to protected blocks when the original source code is unavailable. s7 can opener software download
It can remove the KNOW_HOW_PROTECT attribute from FBs, FCs, OBs, and DBs on the fly.
A demo version of S7CanOpener v1.3 is available for download on the Runmode Downloads Page . It is highly recommended to create a backup
The modern engineering framework for all SIMATIC controllers.
It does not unlock the more modern "Block Privacy" protection found in newer STEP 7 versions like v5.5 or TIA Portal. It can remove the KNOW_HOW_PROTECT attribute from FBs,
It cannot unlock SFCs or SFBs as these are system-level functions stored in the PLC's internal memory. Official Alternatives for S7 Programming
Official simulation software for testing and debugging S7 programs without physical hardware. S7 Can Opener - Runmode.com