I have a DAQ Assistant configured to read 2 channels at the same time. Reading the good data in DAQ but wrong data in chart after it.

[elhanan]

I have a DAQ Assistant configured to read 2 channels at the same time. 1 LVDT and 1 bridge transducer. While reading the data in DAQ assistant, the data it's OK, but displaying the data on chart or display, gives wrong data. 

[GerdW]

Hi elhanan,

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@elhanan wrote:

While reading the data in DAQ assistant, the data it's OK, but displaying the data on chart or display, gives wrong data. 

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Then there is something wrong in your VI.

As you didn't attach your code you need to debug on your own!

[LabVIEWFairy]

Hi Elhanan. 

Just saying that the data is wrong doesn't give us anything to go on. It's a lot more helpful to post an example of what's expected and what you're receiving. 

On a further note, It's usually good to try and stop using the DAQassistant as quickly as possible, and use the full API to take proper control of your code. I'd recommend looking at the examples "Help>>Find Examples"

[elhanan]

Thank you all,

I drop the vi and 2 screen shots:

1) DAQ assistant.png show the data while reading the two sensors (LVDT & Bridge Indicator). Values are: -39.9 for LVDT, 249m for the Bridge Indicator)

2) Wrong reading LVDT.png shows the reding on the waveform charts. While bridge chart is OK, LVDT chart is not OK.

I'm using the similar application for a lot of time, with SCXI, cDAQ and PXIe and always it was OK.

One more thing, now i'm using, for the first time, new PXI system.

Thank you,

Elhanan