Technical data

Configuring the Computing Unit
5-11
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
MeaningEntry
Legacy USB
Support:
Disabled A USB-capable operating system with the corresponding
drivers is required to operate a USB keyboard or USB
mouse. Setup adjustments can still be made with a USB
keyboard.
Enabled USB keyboard and USB mouse are not supported by the
operating systems without USB capability. Operating
systems not having USB capability can be used.
CRT / LCD
selection
LCD All data are output only to the internal LCD,
Enabled the 15-pin VGA port is disabled
CRT For maximum resolution, the display signals are output
Enabled only to the 15-pin VGA port; the LCD interface of the VGA
controller is disabled
SIMULTAN Both display interfaces are operated simultaneously.
However, the LCD does not support all resolutions.
CRT 640 x 480 Image refresh rate with a resolution of 640x480 pixels
CRT 800 x 600 Image refresh rate with a resolution of 800x600 pixels
CRT
1024 x 768
Image 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 Only the Text modes are expanded to full screen size.
expand
Graph&Text The Text and Graphic modes are expanded to full screen
expand size.
DSTN Contrast The contrast of DSTN displays is set here. Range: 0-255
Trackball/
PS/2 mouse
Internal The PS/2 port is activated (default setting). This means the
trackball is activated. IRQ 12 is assigned.
External The PS/2 port is activated; IRQ 12 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; IRQ 12 is available.
Note: Any change to this interface will not come into effect until
the computing unit is switched off and on again.