I am trying to use a NI-PCI-5114 card to measure voltage signal. I installed
NI-PCI-5114 in my computer. I can see it in the MAX and Windows Device
Manager. It passes the self-test. When I tried to use DAQ Assistant to configure it (
NI-DAQ>>Aquire Signals>>Analog Input>>Voltage ), I
got the message "no supported devices found". I am using LabVIEW 8.5
evaluation version. Could you tell me why?
Thank you so much for your help. I am new to the LabVIEW. I just got the software and the PCI-5114 board last Fri.
My application is that using the PCI-5114 to measure 2 input voltages automatically and save the results to files.I chose the leaving Window Trigger mode in order to record the data which is higher than +0.5V or lower than -0.5V.
The device is used to record the 2 voltage signals contineouly. How should I set the hardward's timeout value?
The acquired data will be analyzed by MatLab. Which format is better, .lvm, .tdms or .tdm?
To acquire continuously with the scope, I would try changing the acquisition mode in the NI SCOPE Express VI to continuous. Just keep in mind that you gather data VERY quickly that way. With 2 channels at 250MS/s/ch, you generate 500MB of data a second!
Also, I definitely recommend exploring some of the example programs found in the NI Example Finder, which you can find from LabVIEW be going to the top menu bar and selecting Help » Find Examples. Browse the examples by task to Hardware Input and Output » Modular Instruments » NI-SCOPE (High Speed Digitizers) » Continuous Acquisition. There are several examples there to try.