National Instruments PC-LPM-16/PnP 사용자 설명서

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Appendix C     Using Your PC-LPM-16 (Non-PnP) Board
PC-LPM-16/PnP User Manual
C-6
 
 
 National Instruments Corporation
 
Base I/O Address Selection
 
The base I/O address for the PC-LPM-16 is determined by the switches 
at position U26 (see Figure C-2). The switches are set at the factory for 
the base I/O address hex 260. This factory setting is used as the default 
base I/O address value by National Instruments software packages for 
use with the PC-LPM-16. The PC-LPM-16 uses the base I/O address 
space hex 260 through 26F with the factory setting. See Table C-2 for 
the board factory settings.
Verify that this base I/O address space is not already used by other 
equipment installed in your computer. 
 
Note:
 
If any equipment in your computer already uses this base I/O address 
space, you must change the base I/O address of the PC-LPM-16 or of the 
other device.
 
If you change the PC-LPM-16 base I/O address, you must make a 
corresponding change to any software packages you use with the 
PC-LPM-16. For more information about the I/O address of your 
computer, refer to your computer’s technical reference manual.
 
Table C-2.     
 
PC Bus Interface Factory Settings
 
PC-LPM-16 Board
Default Settings
Hardware 
Implementation
 
Base I/O Address
Hex 260
Interrupt Level
Interrupt level 5 
selected
(factory setting)
 
W3:
 
 Row 5
Analog Input
Bipolar input 
selected (
 
±
 
5 V)
(factory setting)
 
W1:
 
 B-C
 
W2:
 
 B-C 
U26
A9
A8
A7
A6
A5