: The PLC will detect the transfer card and begin wiping the internal load memory. Wait until the MAINT LED flashes.
This is the official Siemens procedure for recovering a CPU when the password is lost. :
: The PLC will detect the transfer card and begin wiping the internal load memory. Wait until the MAINT LED flashes.
This is the official Siemens procedure for recovering a CPU when the password is lost. : s71200 password unlock work