Siemens S7-200 Password Unlock !!exclusive!!

This resets the CPU to factory default. The program is gone . This is useful only if you have a backup file but are locked out of upload. It does not recover the existing program.

(6ES7 901-3CB30-0XA0) to connect your PC to the CPU's RS-485 port. Open STEP 7-Micro/WIN Siemens S7-200 Password Unlock

Select all checkboxes (Program Block, Data Block, System Block). This resets the CPU to factory default

: Typically requires a serial PPI cable (not always compatible with USB adapters). Siemens S7-200 Password Unlock

For situations where standard software communication fails, Siemens provides a standalone utility called Wipeout.exe Siemens SiePortal