Error 1074000000 has occurred in a place not identified and error 1073807339 occurred at VISA read

I worked with it for a few weeks. I am a student doing research for a professor and I'm new to LabVIEW (about a month).

We calculate impedance in an object with a pulsar. The pulsar will pass through an area of resistance before and after the charge for the calculation of v1 and v2. This will help us to find the current which will help us to find the impedance of the load. In this case, the charge will be a potato. The pulsar will send piulses so we want the program to record the waveform on the trigger.  We have v2 and v1 of two channels. We must record the results of v1 and v2, more than an hour. In addition, if v1, v2, and timestamp are in the same excel file then our lives would be easier. A waveform by file.

-TL; DR Two channels to be recorded with a timestamp

The oscilloscope is the WaveRunner LeCroy_64xi.

We use LabVIEW 2014 SP1.

I connect to an oscilloscope via an ethernet connection. The connection should not be the problem, but I connected the oscilloscope using NOR-MAX. The oscilloscope is an ACIP device with a remote system, passport and alias. The instructions step by step are http://forums.ni.com/ni/attachments/ni/140/43120/1/VICP-NI-MAX.doc.

After you connect the oscilloscope, we took a sample program from the driver and changed that to do what we want. We got a few results. FetchWaveform strives to get the shape of wave, but after four or so waveforms, it gives two errors. We tried to add delays, loops and run the program once at a time. I'm willing to start one of these well. This worked well enough at some point, but I think it was because we had a few labVIEW programs open and he was capture the waveform at every second. I think it was because the LABVIEW program has been slowed by the natural delay. It was exactly what we were looking for, but mistakes don't happen often. After the computer restarts and the program, the waveforms are extremely fast registered and errors occur. It is not consistent and we do not know how to register only when the waveform is triggered. Trouble downloading my code here.

Moving this, we tried ReadWaveform. For some reason, we cannot get readWaveform to work. It does not display the waveform and gives the second error or timeout error. We understand why he will not really connect with the oscilloscope. I do not change one of the examples that use readWaveform for this problem.

I'll be here tomorrow, but I'm almost done for today. If there is anything I missed, I'm sorry and I'll it download tomorrow. I'm out of ideas. To message me please and thank you very much for your effort.

Hi Tnorm007,

I appreciate the level of detail you have included; It seems that there are a lot of things here.  However, it still seems to be inconsistencies and ambiguities in the errors that you receive.  You are able to get a consistent result by running the code you provided?

For example, if you run the code once, it works as you want?

If you press run is once again, it works the way you want?  (I assume that you configure the writing on a measure VI file to add the data to the current file?)

Does it fail after a number of iterations, or it does not depend on the speed at which it runs, back to back?  Which two errors are thrown into this case?

Also, just a general tip, if you want to receive signals continuously, you want only portions of reading/writing the code of the loop (and initialize/close the task only once), rather than put all the code in a large loop or by pressing the button several times run

Best,

David Randolph

Engineering applications

National Instruments

www.NI.com/support

Tags: NI Software

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