S7 200 Smart Plc Password Unlock New =link=
Insert the card into a powered-off PLC, then power it on; the LED indicators will signal when the reset is complete. Siemens SiePortal 2. Password Recovery (Keeping the Program)
This method is the standard way to wipe the PLC and remove the password so you can download a new program. Connect your PC to the PLC using STEP 7-Micro/WIN SMART menu and select In the dialog box, select all checkboxes (Program Block, System Block, and Data Block). When prompted for a password, enter the string: (case-insensitive). s7 200 smart plc password unlock new