S7-1200 Password Unlock Jun 2026

Power on the CPU. The CPU will automatically transfer the "empty" state from the card to its internal memory, wiping the protected project and password.

This guide assumes you are acting legally as the equipment owner. S7-1200 Password Unlock

: The PLC will copy the "empty" project (nothing) over the existing internal memory. Once the STOP LED flashes, the internal memory is cleared, and the password protection is removed. Power on the CPU