Advantech PCI-1720 Manual de usuario Pagina 38

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34 PCI-1713 User's Manual
10. Adjust VR1 until the output codes from the card's AI0 flickers
between 4094 and 4095.
11. Repeat step 7 to step 10, adjusting VR2 and VR1.
12. Connect a DC voltage source with value equal to 2047.5 LSB
(4.9959 V) to AI1.
13. Adjust VR3 until the output codes from the card's AI1 flickers
between 2047 and 2048.
A/D code Mapping Voltage
Hex. Dec. Bipolar ± 5V Unipolar 0 to 10V
000h 0 -4.9971V 0V
7FFh 2047 -0.0024V 4.9947V
800h 2048 0V 4.9971V
FFFh 4095 +4.9947V 9.9918V
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