Once the LEDs stop flashing (typically steady amber), power down the PLC, remove the card, and power it back up.
Unlocking a password-protected Siemens S7-1200 PLC typically means choosing between to gain access for a new project or recovering the original program , which is significantly more difficult. Because Siemens design prioritizes security, there is no "backdoor" to view a protected program without the original password. s71200 password unlock work
The PLC is now at factory defaults with no password protection, allowing you to download a new project. 2. TIA Portal Factory Reset (Online Method) Once the LEDs stop flashing (typically steady amber),
Turn the power back on. The MAINT LED will flash, indicating the CPU is copying the empty configuration to its internal memory. power down the PLC