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Entry
Fan Control
CRT / LCD
selection
LCD-Screen-
size
PS/2 Mouse
SIMATIC Box PC 840 Manual
A5E00085984-04
[Enabled]
Fan speed depends on temperature.
[Disabled]
Fan always runs at full speed.
[LCD Enabled]
All data is output only to the internal LCD,
the 15-way VGA port is disabled
[CRT Enabled]
For maximum resolution the display signals are output
only to the 15-way VGA port; the LCD interface of the
VGA controller is disabled.
[SIMULTAN]
Both display interfaces are enabled and operate
simultaneously. Note, however, that the LCD does not
support all resolutions.
[Normal]
The display window in Text and Graphic modes is not
expanded to full screen size.
[Text expand]
Only the Text modes are expanded to full screen size.
[Graphic expand]Only the Graphic modes are expanded to full screen
size.
[Graph&Text
expand]
The Graphic and Text modes are expanded to full
screen size.
[Enabled]
The PS/2 port is activated. This is the default for the
SIMATIC Box PC 840, the PS/2 mouse is activated in
this setting. IRQ 12 is assigned.
[Disabled]
The PS/2 port is deactivated, IRQ12 is available.
Note:
Invariably, changes to this interface do not come into
effect until the PC is switched off and on again.
Configuring the SIMATIC Box PC 840
Meaning
5-11

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