BECKHOFF CX1020 - Manual (Page 77)

Assembly and connecting
Embedded PC 75
Start-up procedure
Switching the PC on and off
Switching on
The power supply for the basic CPU module comes from the power supply unit. The basic CPU module starts
automatically when the power supply unit is connected to the mains.
Switching on for the first time
When you switch on the PC for the first time, the pre-installed operating system (optional) will be started.
Switching off
The Embedded PC switches off when the power supply unit is switched off. The control software typically running on
Embedded PCs should be shut down or stopped correctly. A user who may not close software may also not switch
the Embedded PC off, since data can be lost from the hard disk by switching off while software is running.
Once the software has been stopped, the operating system can be shut down. Only then should the power supply be
interrupted.