Siemens SIMATIC Rack PC 840 Manual page 83

Local Bus IDE
adapter
Large Disk
Access Mode
Memory Gap at
15 MByte
"COM/LPT Configuration" Submenu
Figure 5-9
The resources used by an interface are released when you disable the interface in
question.
The I/O addresses and interrupts are preassigned: it is advisable not to change
these default assignments.
SIMATIC Rack PC 840 Manual
A5E00104826-03
[Primary]
[Secondary]
[Primary & Secondary] Two IDE interfaces for max. four drives.
[Disabled]
[DOS] The drive tables are adapted for DOS access operations
in accordance with Enhanced IDE.
[OTHER] The tables are not adapted.
[Disabled] The complete onboard RAM memory is available.
[Enabled] A 1MB area of the RAM above 15MB
(Addresses F0 0000 – FF FFFF) can be used by ISA
expansion cards.
PhoenixBIOS Setup Utility
Advanced
COM/LPT Configuration
Internal COM 1:
Base I/O address:
Interrupt:
Internal COM2:
Base I/O address:
Interrupt:
Internal LPT1:
Mode:
Base I/O address:
Interrupt:
Help Select Item
F1
ESC Exit Select Menu
"COM/LPT Configuration" Submenu
Configuring the SIMATIC Rack PC 840
One IDE interface for max. two drives.
No local IDE interface.
Item Specific Help
Configure serial port A
[Enabled]
using options:
[3F8]
[IRQ 4]
[Disabled]
[Enabled]
[2F8]
[IRQ 3]
[Enabled]
[Enabled]
[Output only]
[Auto]
[378]
[IRQ 7]
[OS Controlled]
+ / – Change Values
Select
Enter Sub-Menu
No configuration
User configuration
BIOS or OS chooses
configuration
Displayed when
controlled by OS
F9 Setup Defaults
F10 Save and Exit
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