A way to see if GPIB-USB-HS is attached
I'm controlling 18 separate GPIB power supplies with a GPIB-USB-HS cable. These 18 power supplies are addressed as 1-18. I want to add something to my VI that allows me to check if the GPIB-USB-HS...
View Articlebit banging with NI-8451
Hello everyone! So i have a board that has two 12-bit DAC's (LTC1257) . They are cascaded together with the Dout of one DAC going into the Din of the other. So essentially I need to shift in 24 bits to...
View ArticleClik here to view.
ActiveDSO of LeCroy crash
Hello! I'm having this problem where the ActiveDSO of VI that I'm using to capture the waveform from measurement (LeCroy WaveRunner 6050A) crashes each time during the image capturing, all of sudden....
View ArticleAnalogic input data switched between channels
Hello, I am facing strange problem - I collect data with PCI 6221 DAQ Card (I read two analogic inputs at the same time, samples are being acquired due to fast counter input to which encoder is...
View ArticleDoes Labview support BLE (Bluetooth low energy)? Any
Hi, I have TI - CC2541 Based custom hardware and wanted to use Labview to communicate the device via BLE (Bluetooth 4.0 Low Energy).I have gone through many forums. Most says that they doesnt support,...
View Articleprobes clusters
I created a cluster of numerics/booleans etc.then created a type def out of it. I pass the cluster into a do while loop. In the do while is a 2 button ("OK" or "ABORT") popup that asks user a...
View ArticleClik here to view.
Decimate and build 1d array into 2D array
Hi, I am getting AI Data from a FPGA over a DMA FIFO in an interleaved format. So the order of elements would be AI0, AI1, .. , AIn, AI0, AI1, and so on. For my application I need that data to be in...
View ArticleDVR delete and subroutine priority
I just tried opening our LV 2012 SP1 project in LV 2015 to see how things look and I got a couple of surprising broken arrows. Apparently the DVR Delete is not permitted in a VI with subroutine...
View Articlequick drop remove bug
Selecting a Type cast and doing a quick drop remove connected the Type to the *type, instead of input to *type.Lv2014/Y
View Articlepre-populate popups
Is there a way to "prepopulate" a popup to the user? I query the user for 6 different values using "prompt user " express.vi. At the end of the 6th query I display the values the user put in and ask...
View ArticleDesign template recommendation
I'm fairly new to LabView and would like a recommendation as to which design template I should start with for my project. So far I think the best choices are either Producer/Consumer with Events, or...
View ArticleClik here to view.
current vi reference
Hi I'm new to Labview. I want to know how to get the current VI reference as the graph shown below. Functions>Application Contrl>Class Specifier Constant, but I couldn't find the VI option in its...
View Articledate/time string function : indication of after or before
Dear all, I am trying to do an application which its role is to disable a boolean control after a specific date.This specific date is chosen by the user in a string control. For ex. the user enter the...
View ArticleMain panel indicator to match subVI's
Dear all, I have a subVI reading files and making a multi-plot XY graph with the data. Part of the subVI code is also setting some properties of the XY graph indicator, using a property node, such as...
View ArticleMAX DAQmx encoder PFI lines not carried through to Labview
Using MAX 15.0.0f0, I've setup a Global Channel as Angular Encoder counter measurement on a cDAQ 9401, selected PFI lines 0 and 1, saved it and ran it - works fine in MAX.In labviev2014 I created a new...
View ArticleMicrosoft Visual C++ Runtime Library Crashes
We've been seeing intermittent LabVIEW crashes when calling VIs through the LabVIEW adapter in TestStand. Code is similar on other test stations we have, but we run many more threads in this case than...
View ArticleMy LabVIEW-WinAPI Fails
Hi,I created this message to ask and verify if I'm the only LabVIEW developer which fails every time when tries to use Windows API on his own (not using ready to use DLL wrappers, developed by some...
View Articlehigh priority producer normal priority consumer
Hello ni forums I have a question Lets say that I have a real time application, on the top level vi I have 2 loops 1st loop is a high priority subvi that has open fpga reference vi, this initializes...
View Article[fpga] Analog input configuration in NI 7965R
Hi all, I have a NI FlexRIO (PXIe-7965R) FPGA card with an adapter module (NI 5733). I am using Labview real time 2012. My measurements are dominated with 60 Hz harmonic noise, which is very much...
View ArticleDisplaying a logarithmic value on a linear plot
Hi all, I am having a mental block and hard time wrapping my head around this issue and how to do it. Let me explain. I am using LabView to drive a Built-in-Self-Test (BIST) on our product. The device...
View Article