B&R Industries Automation PC 620, User Manual

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Technical data • Entire device
Chapter 2
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87 Automation PC 620 User's Manual V 1.90
2.9.15 Power button
Due to the complete ATX power supply support, the power button serves various functions.
These functions can be configured either in the BIOS setup (see BIOS function "power button
function" in Section "Power" on page 243 for 815E CPU boards, or Section "Power" on page 296
for 855GME CPU boards) or, for example, in the operating system Windows XP.
2.9.16 Reset button
Power button
The power button can be pressed with a pointed object (i.e.
paper clip or tip of a pen).
The power button acts like the on/off switch on a normal
desktop PC with ATX power supply:
press and release ... Switches on APC620 or shuts down
operating system and switches off the APC620.
press and hold ... ATX power supply switches off without
shutting down the APC620 (data could be lost!).
Pressing the power button does not reset the MTCX
processor.
Table 42: Technical data - the Power button
Reset button
The reset button can be pressed with a pointed object (i.e.
paper clip or tip of a pen).
Pushing the reset button results in a hardware-reset, PCI-
reset. The Automation PC 620 restarts cold.
The MTCX processor is not reset when the reset button is
pressed.
Table 43: Technical data - the Reset button
Warning!
A system reset can cause data to be lost!