Real time Data Acquisition Example

[swam]

Hello,
I am having trouble with DAQ program using Real time PXI system using TCP/IP. CAn anyone send me a very simple example of Data Acquisition in Real time of the Time Critical Priority loop and the Normal Priority loop. I cpould not find any examples.
Any examples would be helpful.

Sunswam

[DavidT]

Hi sunswam,
To easily build a daq system which will operate in real time and communicate using TCP/IP you will need to use the RT Communication Wizard, situated in the Tools menu. Have a look at this tutorial on how to use it.
RT Comm Wizard
You can start off by selecting an appropriate DAQ example from the shipped examples to build your simple DAQ system. Once the wizard has compiled your vi's, upload the NPL vi to the RT target. The run the Host vi on your host PC to receive data from your PXI target.
Let me know if you have any other questions.

[swam]

Hi David,
I did try with a simple DAQ from the example and used the RT communication wizard. I put a wait inside the loop (TCL).My DAq runs without any errors but I do not get any signal. I just see one point in the plot. I do not know why. any suggestions

Thanks

Sundar

[DavidT]

Which example did you use? Perhaps your example was set to do a single point aquisition and was not for continous aquisition.
Try using the 'Cont Aqc&Graph Voltage - IntClk.vi'

Message Edited by DavidT on 04-18-2005 09:08 AM

[swam]

Hi,
I used cont acqusition and the same example you told me. I dont know why.

sunswam