, which wipes the CPU's internal load memory. Because the S7-1200's security is designed to protect industrial intellectual property, there is no "backdoor" or retrieval tool to recover the existing password or program. Core Unlocking Method (Memory Card) The standard way to bypass a lost password is to use a SIMATIC Memory Card (SMC) as a "transfer card" to clear the CPU's memory. Prepare the Card
- If you've lost the password to your own PLC, contact Siemens Technical Support with proof of ownership. They have legitimate procedures for password recovery. s71200 password unlock work