Default setting of the section [StartScreen] in startup.ini
# Time in seconds, within which the system power down can be interrupted
(key 3 or click on the Copyright note).
ShowCountdown=true
# Displays a countdown until the system powers up with SINUMERIK Operate.
Service and diagnostics
7.5 Configuring the SINUMERIK power up screen
PCU Base Software (IM10)
164 Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1