Installation • Known problems/issues
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Panel PC 800 User's Manual V1.30
11 Known problems/issues
The following issues for the PPC800 devices are known:
•
Using two different types of CompactFlash cards can cause problems with Automation PCs and Panel
PCs. For example, it is possible that one of the two cards is not detected during system startup. This is
caused by different startup speeds. CompactFlash cards with older technology require significantly more
time during system startup than CompactFlash cards with newer technology. This behavior occurs near
the end of the time frame provided for startup. The problem described can occur because the startup time
for the CompactFlash cards fluctuates due to the different components being used. Depending on the
CompactFlash cards being used, this error may occur never, sometimes or always.
•
During daisy chain operation of multiple AP800/AP900 devices via SDL, it is possible that the touch con-
troller status shows a red "X" in the Control Center applet for the touch screen driver when the touch con-
troller is detected. The functionality of the touch system is not affected by this. This can be avoided by
setting a panel locking time of 50 ms. The panel locking time can be configured with the B&R Key Editor.
•
HD resolution (1366x768) is not completely supported by VBIOS, which causes display errors after POST.
The image flickers and is shifted down a line. BIOS POST and BIOS Setup are still displayed correctly,
however. This effect occurs when using operating systems for which no driver is available (e.g. MS-DOS)
or before the operating system's graphics driver is started (e.g. Windows XP boot logo). HD resolution is
displayed corrected again when Windows XP or Windows 7 is booted properly with an installed graphics
driver.