c# example ni 4050 (pcmcia)

[programmator]

HI, can anyone post a c# code example for measuring resistance with a NI PCMCIA 4050?

All examples (in the NI folder) which i tried don't work. 😞

[DianaS]

Hi programma,

perhaps this may help you:

http://zone.ni.com/devzone/cda/epd/p/id/5296

http://zone.ni.com/devzone/cda/epd/p/id/523

The first one is about how to measure resistance with DMM

and the second includes an example of how to measure DC voltage

with DMM in c#

[programmator]

Hi! 

I tried to initialize the resistance channel with the following code:

private void button1_Click(object sender, EventArgs e)
        {
            Task myTask = new Task();

            try
            {
              
                myTask.AIChannels.CreateResistanceChannel("DAQ::1:INSTR", "", 1.0, 200000.0, AIResistanceConfiguration.TwoWire, AIExcitationSource.None, 0.0, AIResistanceUnits.Ohms);
                myTask.Control(TaskAction.Verify);

                AnalogSingleChannelReader myAnalogReader = new AnalogSingleChannelReader(myTask.Stream);
            }
            catch (DaqException exception)
            {

                myTask.Dispose();
                MessageBox.Show(exception.Message);

            }

But I don't know which device name i should use? I tried "DAQ::1:INSTR", "DEV0", "DEV1"..... I can't find any information about the device name...

[DianaS]

Hi

If you go to -> Start -> Programs -> National Instruments -> NI-DMM -> DMM Soft Frontpanel

You can test your DMM. And there is also shown the device name.

I used a PCI-4060 here and the device name is DAQ::1