Detailed descriptions
16.5 BIOS Setup
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
181
"PCI Devices" field
If the PCI devices field is selected, the following submenu appears:
Figure 16-17 "PCI Devices" field
[Enabled]
The ROM option of the PCI module (if present) is
enabled
ROM Scan Option
[Disabled]
The ROM option of a PCI module is disabled.
[Enabled]
This slot can be assigned PCI master functions
Enable Master
[Disabled]
This slot can only operate as a PCI slave.
[Default]
The number of active PCI clock cycles of the master
modules is determined by this module
[0020H to 00E0H]
These settings define the maximum number of active
PCI clock cycles according to the set value.
Latency Timer
You should only use a value different from the default if required by the
module or its application.
