Siemens SIMATIC PC 670 Equipment Manual page 46

Connecting and Switching on the Computing Unit
Installation von PC cards
Observe the following points when you install these cards:
Note
Depending on the configuration of the computing unit, it could be that there are no free
interrupts for the operation of PC cards. The interrupts required by the PC card must
then be reserved as follows in the BIOS Setup menu:
Define the required interrupt by setting Advanced > PCI-Configuration >
PCI/PNP ISA IRQ Resource Exclusion to reserved (default: available).
Caution
!
Danger of PC cards and the computing unit being damaged.
The PC card must be plugged into the interface with its front facing the rear side of
the computing unit. This side is normally marked with a company or product name
and the wording "This side up" or something similar.
If the PC card is inserted incorrectly, the computing unit and PC card may be
damaged.
Before inserting the connecting cables, the static charge of your body, the device
and the connecting cables must be brought to the same potential. To do this, touch
the metal housing briefly.
Notice
In order to operate the PC card set Main > Hardware Option "Cardbus/PCMCIA
Slot" in the BIOS Setupmenu to "Enabled".
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Panel PC 670 Computing Unit, Equipment Manual
Release 04/02