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NI-DAQmx Base程序生成可执行程序后不能工作 我有一个NI-DAQmx Base程序，运行一个USB NI-DAQmx Base设备。当在LabVIEW中运行时，程序可运行并且返回正确数据。当我把这个VI编译成一个EXE程序后，程序停止工作。程序打开后，运行不会返回一个错误，但不能返回任何数据或者会得到一个VISA错误，比如'Error 1073807346 VIS URL: http://digital.ni.com/public.nsf/allkb/20EA55E01DCED484482571AB002CAD55

USB Issues While Using the Front Ports of a Desktop Computer A USB device is either freezing when plugged in or is not recognized by the computer at all. How do I fix this? URL: http://digital.ni.com/public.nsf/allkb/353FAD6529A19228862571AA0071B225

Using DAQPad 6015 with Screw Terminations for Measuring Thermocouple Temperature I have a DAQPad-6015 with screw-terminal connectors and I am trying to measure temperature using thermocouples. The collected data seems to stay accurate and stable for a while but after some time the data becomes very noisy and starts spiking to about 800 C. When I heat or cool the URL: http://digital.ni.com/public.nsf/allkb/DB4CC861F5CF246E862571830050C330

Read All Available Samples Function Does Not Return All of the Samples for a USB Device I would like to read all of the samples that are sitting in the buffer from my USB DAQ card. When I call the appropriate DAQ function to read all available samples, it only returns a set number of samples instead of all of them. The number of samples returned also seems to follow a pattern URL: http://digital.ni.com/public.nsf/allkb/51CB640AA521B3F78625718100501B7B

NI 6123 Offset After Calibration When calibrating a NI 6123 with Calibration Executive 3.x, an offset occurs which causes the device to fail calibration. What can I do to prevent this problem? URL: http://digital.ni.com/public.nsf/allkb/666731FBC84DEC118625716F00682020

Incorrect Thermocouple Measurements at Low Temperatures Using NI-DAQmx, NI-DAQmx Base, or LabVIEW My thermocouple readings are inaccurate when they drop below a certain temperature. A B-type thermocouple should support a minimum temperature of 0 degrees C, but I see inaccurate measurements when the temperature drops below 250 degrees C. E-type, K-type, N-type, and T-type thermocouples URL: http://digital.ni.com/public.nsf/allkb/FE45C453148147CC86257169006CB2E5

Why Do I Get Bad Readings from My E Series Board with NI-DAQmx Base? I have a program written in NI-DAQmx Base that performs hardware-timed analog input on my E Series DAQ board. Why does the graph of my signal look incorrect? URL: http://digital.ni.com/public.nsf/allkb/E9CEC8C152AADA5486257168007A01B5

Changing the Value of the NI ELVIS Variable Power Supply Express VI Temporarily Sets Output to Zero I am using the NI ELVIS Variable Power Supply (VPS) VI in LabVIEW with a control to update the output voltage. I run the VI initially and the voltage updates correctly, but the output drops to 0V before updating to the set voltage for all subsequent runs. Is there some way to make the voltage URL: http://digital.ni.com/public.nsf/allkb/84BA7BF31C53FFAD862571650054F228

Launching NI ELVIS Calibration Wizard Gives Error -9311 I was able to run either the NI ELVIS Express VI's in LabVIEW or the ELVIS steps in Signal Express without error, but when I launched the ELVIS Calibration Wizard, I get Error -9311, shown below: URL: http://digital.ni.com/public.nsf/allkb/FBCE2B24AA28745B862571650080CCC7

NI ELVIS Arbitrary Waveform Generator Express VI Does not Output a Signal From the Express Front Panel Why does nothing happen when I open the Arbitrary Waveform Generator (ARB) Express VI's Front Panel and select run? URL: http://digital.ni.com/public.nsf/allkb/18A2E298E5F7FF6786257165007C7B3F