"SIPROTEC 4 and SIPROTEC Compact devices allow the display of extended internal statistics and test information...
To access this information, the confirmation code “311299” needs to be provided when prompted."
"...Siemens does not publish official documentation on these statistics. It is strongly recommended to work together with Siemens SIPROTEC customer care or commissioning experts to retrieve and interpret the statistics and test information..."
@atimorin and @k_v_nesterov can help.
Stack and other parts of memory
So this is confirmation code... Oh, we thought it 0-day...
TEMPEST is coming...