Analog out problem

I am generating pulses ans sending them through the analog outs. I have the outs connected to the oscilloscope. When i run my prog. both the analog out channels shift up by 5v. When i stop the prog it remains in the shifted 5V. Now i goto the Measurements and Automation software and say test on either one of the analog out and it falls back to zero. But when i run the prog again i find the output shifted by 5V. Can anyone tell me why its happening this way? Thanks!

You could upload the vi in question so we can see what's up.
Sounds like you aren't putting a "reset" segment into your program, such as a frame at the end that sets the AO's to 0V.
Run vi->Set AO to 5V->Do stuff->Set AO to 0V->Shutdown vi.
MAX well reset the AOs when it opens up, so you need to do the same within your program.
2006 Ultimate LabVIEW G-eek.

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6024E analog out problem-Urgent

Hi ,
I'm developing a device driver for NI6024E Pci Daq for Linux. I
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happens, i boot Windows and load NI DAQ it gets coorected. As I feel,
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Thanks in advance.
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Hello Michael-
I see you posted your request in the DDK Forum. This forum will be viewed by NI software engineers, but most users in this forum will not have experience with driver development because NI-DAQmx Base for Linux does support your PCI card.
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Solved!
Go to Solution.

additionally, is there a way to DMA 32-bit values to analog out, without them being interpreted as pairs of 16-bit values?
for analog input, both problems (writes to the fifo, and dma to the fifo) are solved by setting the fifo width:
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--spg
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Read spreadsheet file for Analog Out Profile using DAQmx

I am trying to read a .txt file in, then output the Analog out profile (Daqmx) vs. time. The first column is time is (ms) in .001 sec increments. The second column is the Analog out voltage I want to output. I want to read the profile in, and ouput the a Analog out voltage incrementing in .001 sec intervals (or whatever the time increments are in the .txt file). The problem I am having is, it reads in the whole file and outputs it in a fraction of a sec, instead of incrementing by the time. I attached a screen shot of what I have. Any help would be great. Thanks
Attachments:
screen shot read.jpg ‏75 KB

You are reading the timing but not doing anything with it. You've specified Analog Wfm 1Chan NSamp for the DAQmx Write but you did not create the waveform data type. Use the Build Waveform function on the Waveform palette and wire in your array to the Y (waveform component) input and the time interval to the dt input.
Message Edited by Dennis Knutson on 04-06-2006 08:56 AM
Attachments:
Build Waveform.JPG ‏6 KB

Bad point on FP analog out module

When moving through the 4-20 mA range on an FP analog out module by .1 mA increments. I am seeing several specific points ex. 5.2 mA or 11.3 mA. That appear to short the module to 20 mA. I have confirmed this both with FP explorer and a DVM. The points are reproduceably bad. In addition the only way I have succeded in solving this is by switching the CFP 20-20 head module. The problem is that I have many systems to field and I have now seen this on 3 seperate heads. I have even tried different power supplies. any feedback would be great.

Shock,
So you have seen this issue on multiple systems and when you replace the cFP-2020 controller the issue goes away? When you say it shorts the module to 20mA, do you mean you tell it to output 5.2mA and it then actually outputs 20mA? I would have guessed that this issue has to do with the I/O module. Does reformatting a problematic controller resolve the issue or does it still demonstrate the behavior? Also which specific cFP I/O module are you seeing this behavior from?
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Actually you are having exactly the same problem as other users with DTT3500 or 5700 speakers. The X-Fi does not support the DIN connection. The digital-out of the X-Fi is the industry standard SPDIF. This means only 2-channels can be sent!
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Time out problem in BPS

BPS friends,
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Hi Pat,
How many record did you copy ??
Could you restrict the copy in not 1 package ??
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I suggest you ..
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How can I generate tones with usb 6008 using analog out?... tia sal2

Greetings All
I've been looking at the example Sim Phone.vi that comes with labview and would like to generate similar tones out of our usb 6008 device. I can get a very faint sound out of our usb 6008 using the example Gen Multi Volt Updates-SW Timed.vi Does anyone know the best way to alter Sim Phone.vi to have the sound come out of the Analog output of our usb 6008 device. ( I have a small speaker connected to the Analog out on our USB 6008)
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Attachments:
Gen Mult Volt Updates-SW Timed.vi ‏78 KB

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Analog out problem

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