How to sync 3-way with USB-6251

Hi all

I have a NI USB 6251, Labview8.5.

My system includes: + a waveform output stimulating (I use Dev1/AO1 or Dev1 / AO0)

+ Two channels for (I use Dev1/ai0 and Dev1/ai1) acquisition of input signals.

I modified example "Multi-multifunction-Synch I-AO" Find example\Hardware entry and Output\DAQmx\Synchronization\Multi multi-function.

I added a single channel for this example and I want to 3 channels at the same time working, but during process occurs "error-50103 occurred at Task.vi:1 DAQmx Start" or the possible reasons: the specified resource is reserved. The operation could not be performed as indicated.

I have taken a long time, but can not solve this problem.

Can you give me any advice.

Thanks in advance for any help!

MC

As the specifications clearly indicate, your Board does not support simultaneous sampling. There is a simple element A/D and all channels are multiplexed for her. When you select several channels, the first string in the list will be sampled, then the second, etc. There will be a time that you can determine and it is very small, but it will always be there. If you need simultaneous sampling of the value true , you can buy a DAQ card that supports.

Tags: NI Hardware

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