He spent the next hour scouring specialized forums. He found threads discussing the Protection levels in S7-1200 provided by , noting that once "Full Protection" is locked without a password, the hardware is essentially a vault.
Before attempting any unlock, you must understand what you are up against. s71200 password unlock top
If the PLC is not fully locked out (e.g., you have "Read Access" but not "Full Access"), you might be able to reset it through the software. How to reset the password in s7 1200 1214c DCDCRLY Go to Online & Diagnostics → Functions →
This is the method for legal owners. Siemens provides a formal password recovery procedure. s71200 password unlock top