The ease with which an S7-1500 can be reset via a memory card highlights a fundamental tenet of ICS security:
: There are no default passwords for the PLC logic itself, but for the integrated Web Server , the default administrator username is often Administrator with no password or administrator Do you have physical access to the CPU, or are you trying to reset it via TIA Portal? siemens s7-1500 password reset
: Extract the SIMATIC Memory Card from the CPU slot. Format/Clear Card : The ease with which an S7-1500 can be
Always keep a backup of the TIA Portal project file (*.ap1x) in a secondary location. but for the integrated Web Server