Doc. # 1-0003094 | |||
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Date Updated | 01-16-2004 | Date Created | 07-27-2000 |
Document Type | Knowledge Base | Related OS | |
Related Product | PCI-1710HG/ PCI-1710U |
How to configure both single-ended and differential inputs for AI of PCI-1710/1710HG? | |||
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Solution:
User can mix single-ended and differential channels on analog inputs of PCI-1710/1710HG. The PCI-1710/1710HG card's input channel configuration is selected by software.
On ISA PC-Lab Cards, if you set one single-ended (or differential) input channel by switch, the other channels also would be set as single-ended (or differential). But on the PCI-1710/1710HG card, the 16 analog input (AI0~AI16) channels are divided into 8 sets. You can configure each set as either single-ended or differential. So if you set one set as single-ended (or differential) by software, the other sets will remain their original configurations.
Following is an example.
AI0 AI1 AI2 AI3 AI4 AI5 AI6 AI7 AI8 AI9 AI10 AI11 AI12 AI13 AI14 AI15
(S.E.) (Diff) (Diff) (S.E.) (S.E.) (Diff) (S.E.) (Diff)
Where S.E. is Single-ended and Diff is Differential.
1) Call single channel DLL function such as DRV_AIVoltageIn.
AI0 AI1 AI2 AI3 AI4 AI5 AI6 AI7 AI8 AI9 AI10 AI11 AI12 AI13 AI14 AI15
CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15
Note:No matter you acquire CH2 or CH3, you will get the differential input value of AI2 and AI3.
2) Call multi-channel DLL function such as DRV_MAIVoltageIn.
AI0 AI1 AI2 AI3 AI4 AI5 AI6 AI7 AI8 AI9 AI10 AI11 AI12 AI13 AI14 AI15
CH0 CH1 (CH2) (CH3) CH4 CH5 CH6 CH7 (CH8) CH9 CH10 (CH11)
Note:When you acquire CH2, you will get the differential input value of AI2 and AI3. If you acquire CH3, you will get the differential input value of AI4 and AI5.
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