Technical data

Configuring the SIMATIC Box PC 620
6-14
SIMATIC Box PC 620 Manual
C79000-G7076-C639-02
Entry Meaning
CRT / LCD
selection
[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.
CRT 640 x 480 Refresh rate with a resolution of 640x480 pixels
CRT 800 x 600 Refresh rate with a resolution of 800x600 pixels
CRT 1024 x
768
Refresh rate with a resolution of 1024x768 pixels
LCD-Screen-
size
[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.
[Graph&Text
expand] The Graphic and Text modes are expanded to full
screen size.
DSTN Contrast The contrast of the DSTN displays is set here.
Range: 0-255
Trackball /
PS/2 Mouse
[Internal] The PS/2 port is activated.
This is the default for the SIMATIC Box PC 620,
the trackball is activated in this setting. IRQ 12 is
assigned.
[External] The PS/2 port is activated, IRQ12 is assigned. The
keyboard trackball is disabled, an external PS/2
mouse must be connected.
If no external mouse is connected when the system
boots, the BIOS deactivates the PS/2 port.
[AUTO] Automatic detection of the type of mouse connected.
A PS/2 mouse takes priority over the keyboard
trackball
[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.