National Instruments PC-LPM-16/PnP 사용자 설명서

다운로드
페이지 125
 
Appendix C     Using Your PC-LPM-16 (Non-PnP) Board
 
 
 National Instruments Corporation
C-7
PC-LPM-16/PnP User Manual
 
Each switch in U26 corresponds to one of the address lines A9 through 
A5. Slide the switch to the side labeled 
 
A9
 
 to
 
 A5
 
 to select a binary value 
of 
 
zero
 
 for the corresponding address bit. Slide the switch to the side of 
the switch labeled 
 
ON
 
 to select a binary value of 
 
one
 
 for the 
 
Figure C-2.  
 
Example Base I/O Address Switch Settings
 
The PC-LPM-16 decodes the five LSBs of the address (A4 through A0)  
to select the appropriate PC-LPM-16 register. To change the base I/O 
address:
1.
Remove the plastic cover on U26. 
2.
Slide each switch to the desired position. 
3.
Check each switch to verify that the switch is pressed entirely to the 
side. 
4.
Replace the plastic cover. 
Note the new PC-LPM-16 base I/O address for use when configuring 
the PC-LPM-16 software in the 
 
Hardware and Software Configuration 
Form
 
 in Appendix E, 
 
Customer Communication
 
–Slide to this side for 1
–Slide to this side for 0
a. Switches Set to Base I/O Address of Hex 000 
b. Switches Set to Base I/O Address of Hex 260 (Factory Setting)
U26
A9
A8
A7
A6
A5
–Slide to this side for 1
–Slide to this side for 0
U26
A9
A8
A7
A6
A5