Differential input daq 516

I use the DAQ516 with a program derived from samples\easyio\ailog.c and ai_asyn.c with input single-ended :
In what way I can use the differential input ? What code i must to put ?
I use DAQ Card 516 , CVI 6.0 and Windows XP .
Many Thanks .
mauro
Attachments:
ai_log.zip ‏71 KB

Hi,
The board you are using is only programmable using NI-DAQ Version 6.9.3. The device configuration is done through the Measurement & Automation Explorer (MAX). Under Devices and Interfaces you should see the Device listed. Right click on it and select "Properties...". You will get a popup screen with different Tabs
- General> You can configure the device number and test resources for the device
- Analog Input (AI) > you will be able to configure AI mode (Differential or Single Ended) and the polarity if available.
After the config is done, apply your differential signal to one of the 4 Diff channels that are represented by the couples: 0,4 1,5 2,6 3,7.
This should take care of your problem.
Regards,
AlessioD

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from Measurement & Automation Explorer utility you should be able to see you board under Device and Interaces item, then right click on your board and under Ai tab you should be able to set the AI mode to differential.
After this connect your signal following your board manual instructions:
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Then run the ailog.c and you will acquire your data in Diff mode.
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http://www.ni.com/support/daq/board.htm
http://www.ni.com/support/daq/versions.htm
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[email protected] wrote:
>
> Need to sample from the serial port and 4 channels
> of analog input at the same time. Figured I need
> to use an internal clock to sync the aquisition
> since the serial port response delays every so
> often. Does anyone know how to sample from an I/O
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Differenti​al input daq 516

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