can not save all the data when using DAQ6356
Hi all,I meet strange problem using the DAQ6356 to measure and save data. The VI can just save the former few data while the latter part data are lost. Why it behaves like that?I am using 2 while loops...
View ArticleClik here to view.
How to add timestamp into the beginning of DBL array?
Hi..Does anyone know how to add timestamp into the beginning of DBL array?I've tried using Get Date/Time in strings and spreadsheet string to array since i know that the elements of the array must be...
View ArticleClik here to view.
Unable to launch dialog creating SCXI device
Updated to DAQmx 14.0 on a PXI-8185 Controller and a PXI-1050 rack.Tied to create SCXI device - right click 'Devices and Interfaces' - then 'Create New'Selected 'Ni-DAQmx SCXI Chassis' - 'PXI-1050' -...
View ArticlecDAQ-9172 on MAX 14
Hello, After installing LV 2014 on a new machine, I can see my cDAQ in MAX but none of the modules show up under the pull down in MAX. I've tried installing legacy drivers but they will not replace...
View ArticleDAQ burnout
Hi, We have several PCI-6030E and PCI-MIO-16XE-10 cards running at customers sites all using the same software. Because regular computers with PCI slots are hard to find, we had a PC custom-built with...
View ArticleSelecting the right FPGA board
My lab has been renting a NI PXI-7854R fpga board for the past two years, but we are planning to purchase one in the near future. The same board is not within our budget, so we are looking at the...
View ArticleClik here to view.
ported 6221 & appl from XP to W7 64bit daqmx v9.5 -> 9.9 but Ai not read
I've ported NI PCI6221 card with our application to w7-64bit from xp.daqmx v9.5 -> v9.9our application works, but it seems that the proper Ai is not selected or not read.daqmx channel comm is...
View ArticleDifferential Bias Resistors
My UUT puts out a 15 v spike...about 1 msec in duration that I need to measure differentially. I think my measurement sw is set correctly. If the circuit looks like the attached file do I still need...
View ArticleUSB-1616HS-4 - A/D is not responding
I occasionally get an error while collecting data (please see attached image). Details:Software: DasyLab Version 13.0. Note: Installed patch that allows me to use the older MCC-DRV.Harware: USB-1616HS-4
View ArticleUSB-6009 sample timing
I am trying to use a USB-6009 to determine the response time of a lcd monitor. To do this I have a matlab script that toggles the screen between black and white, I note the time the flip command on the...
View ArticleInconsistent readings with HoneyWell Sensors on USB-6281
I am using HoneyWell Sensors with my USB-6281 to measure pressure vs time. While calibrating the sensors show no problem. It was only by fluke that I noticed the sensors were behaving strangely. I...
View ArticleHow can I save all the data in the queue before releasing it?
Hi all,I have problem saving the complete data when using the Producer/Constumer structure.My VI has a data aquizition loop and a data saving loop (to excel). The data saving loop will run slower than...
View ArticleNon linear variance in voltage with current
I am trying to measure resistance by calculating the voltage across my test sample using NI9205.I have a constant current supply and about 30 cm copper wire across as connectors to my sample(carbon...
View Articletwo DAQmx tasks with special timing relationship in one vi
Hi everyone my mission includes two DAQ task, one is AI (voltage input), the other is DO(counter PWM output). the problem lie in the somewhat time sequence. that is, in a word, the recording (AI) is a...
View Article6218 analog out latency
Good Morning, currently we’re faced with some problems using analog out with USB-6218.Our application is constructed using single voltage values for analog out, because of this we use the function...
View ArticleUSB-6225 Bizarre Ouput - Is it Broken?
Hello,We have a USB-6225 that has been previously used on many occasions to gather strain guage data. We are currently trying to use it to acquire data from a dynamic hydrophone (having previously...
View ArticleWhy does PCI 6251 only record a constant voltage -10.6v?
Hi, I have a problem that a PCI 6251 card records a constant voltage, but it should be 0 with small fluctuation. In the test panel within Mesurement & Automation, the input is one single value...
View ArticleGeneration and Acquisition synchronization with software trigger
Hi all, I use a USB acquisition/generation board (USB-6211) from NI, and Labview software for the code implementation (verson 2011). In my application, I want to generate a waveform and acquire two...
View ArticleProblem with my PCI-6023e
Hi! There is a PCI-6023e National Instruments in my system but the analog inputs are in high positive or negative level. I verified the control panel and Max instalation It was ok.I installed a battery...
View ArticleNI9223 hardware requirement
Hello,Can I store data directly from NI9223 to my computer through USB/Ethernet or I have to use some controller with it?I need to sample 4 channels simultaneously at 500ks/s and I think USB...
View Article