DAQ assistant is missing a data terminal

[dermen]

I am trying to read an analog voltage signal and display it on the front panel. I have a PCI card installed that is recognized by MAX. I can see the signal when I use "test signal". The DAQ assistant express VI does not give me the option to create an indicator, however. "Create" does not even appear on the shortcut menu when I right click the DAQ assistant on the block diagram. How do I display the signal on the front panel?

I am using labview 7.1 with NI-DAQmx 7.2

[Dennis_Knutson]

It's not missing anything. The output signal is what you wire to the "data" input. The test signal is just that - a quick test when you are configuring. It is not output when you run the VI.

[dermen]

Thanks for responding. How do I create an indicator so I can see the signal on the front panel and maybe flash an LED or something?

[Dennis_Knutson]

Depends on how you are generating the data and what the data is. If you are generating a sine wave, use a graph.

[dermen]

I am using a pulse genertaor to generate voltage spikes. I am sending them to a PCI card. I would like to flash an LED everytime the voltage spikes. How do I use this signal as an input on my block diagram?

[dermen]

This is just a test experiment that I am running to get used to using Labview with real intrumentation.

[Dennis_Knutson]

What 'pulse generator'? Do you mean Pulse Pattern? If so, you would wire the array output to a for loop wih a comparison function and a delay to simulate the timing. That might not be a reasonable simulation, though. Depends on how you will eventually be acquiring the real pulses.

[dermen]

I am aquiring real pulses. I have a real analog signal routed to my PC.

[HeatherBaker]

Hi dermen,

You will need to select the output of the signals terminal if you would like to create an indicator rather than the entire DAQ Assistant itself.  Here is a brief video that walks through setting up a measurement, using the DAQ Assistant for acquisition, and displaying the data on a waveform chart.  This is a part of Getting Started with NI Products, where you can begin with the environment basics and also watch a demonstration of saving the data to a file. This is a useful reference as you begin to build your application.  Hopefully this helps!

[dermen]

Thanks!