Yes, they can by using the standby off mode.
In the standby off mode, the OS is running in the background even if the terminal is powered down.
Although, the terminal still looks powered down, the OS itself is running, so the PC can connect to the terminal to download the master file or acquire the log from the terminal.
- * Standby off is enabled only when the "standby off mode is enabled" and the "terminal is powered down".
Set the standby off mode by System Menu -> "1.Basic Settings" -> "5.System Control" -> "1.Power Management".