, which deletes the existing program to protect intellectual property. You cannot recover the password itself through official Siemens methods. Siemens SiePortal 1. Clear Memory via STEP 7-Micro/WIN SMART
If you only need the PLC operational (not the existing program), you can perform a factory reset: s7-200 smart plc password unlock
The Siemens S7-200 SMART is a widely used compact PLC in industrial automation. To protect intellectual property and prevent unauthorized modifications, Siemens allows users to set different levels of password protection on their PLC projects and CPU hardware. , which deletes the existing program to protect