Do NOT delete hidden files like __LOG__ or crdinfo.bin , as these make the card recognizable to the PLC.
Reinsert the card into the CPU and power it on. The CPU will now be empty and ready for a new download without a password prompt. 2. Reset to Factory Settings (TIA Portal) siemens s7-1500 password reset
Within 3 seconds, switch back to and then back to STOP . Password Reset via SMC Factory Reset (TIA) Reset via Display Data Loss Yes (Total) Yes (Total) Yes (Total) Requires PC Yes (Card Reader) Yes (TIA Portal) Hardware Access Online Access Do NOT delete hidden files like __LOG__ or crdinfo
Hold the selector in the position until the RUN/STOP LED lights up steadily for the second time (approx. 3 seconds), then release it. 3 seconds), then release it
You can also use the physical mode selector switch on the front of the CPU: Set the switch to . Remove the memory card.
Open the view for the CPU in TIA Portal. Navigate to Functions > Reset to factory settings . Choose whether to keep or delete the IP address.
Do you have a to reload onto the PLC after the reset?