S7-1200 Password: Unlock [2021]

Power the CPU back on. The CPU will automatically copy the "empty" project, effectively erasing the internal load memory and removing the old password. Wait for the LED to blink, then power off and remove the card.

To understand the unlocking process, one must first understand the protection mechanism. The S7-1200 utilizes a four-level access security model ranging from "No Protection" to "Know-How Protection." S7-1200 Password Unlock

Forgetting a password on a Siemens SIMATIC S7-1200 PLC Go to product viewer dialog for this item. Power the CPU back on