Siemens S7-1500 Password Reset

Sometimes, the "Reset to Factory Settings" fails. Here are the most common error messages and solutions.

Do NOT format the card via Windows, and do NOT delete hidden system files like __LOG__ or crdinfo.bin . Deleting these will permanently damage the card. Reinsert the card into the CPU and power it back on. siemens s7-1500 password reset

Use the display navigation keys to go to the Settings menu and switch the CPU from RUN mode to STOP mode. Navigate to Reset: Scroll down and select Settings > Reset . Execute Factory Reset: Select Factory Default Settings . Sometimes, the "Reset to Factory Settings" fails