Q: I have some SCL or CFC blocks, can I reverse the code to obtain the source file?Ī: No. Q: Will I be able to read the comments within an unlocked block?Ī: Yes, if the original block contained comments. The S7CanOpener operates on projects stored on the hard disk, it does not operate online in the PLC memory and does not remove the password set in the CPU at hardware configuration level. Q: I have a PLC that requires a password for online operations, can I use the S7CanOpener to defeat the password?Ī: No. Q: Can it unlock Step7 v5.5 new “Block Privacy” protection ?Ī: No, at the moment the tool is not able to decrypt such protection. A: the S7CanOpener can unlock S7 blocks protected with the "know_how_protect" keyword.Ī: Yes, it works on S7programs (*.s7p) and S7libraries (*.s7l)
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