Link __exclusive__ — Siemens S7 200 Smart Password Unlock

: Using STEP 7-Micro/WIN SMART, navigate to PLC > Clear... . When prompted for a password to complete the "Clear All" operation, enter CLEARPLC (not case-sensitive).

on the root of the card containing the text "factory reset". Power off the PLC, insert the card, and power it back on. siemens s7 200 smart password unlock link

If you do not need to keep the existing program and just want to clear the PLC for new use, Siemens provides a standard "master password" for the clear operation. : Using STEP 7-Micro/WIN SMART, navigate to PLC > Clear

: Ensure your PC is connected to the PLC via Ethernet. : Using STEP 7-Micro/WIN SMART