LabVIEW wait function in a while loop delay time not accurate
Need Your Help,Thanks!I put a wait(ms) function in a while loop, and the value is set to 10 ms. I put tick counts(ms) before and after the wait function to calculate the delay time.I found that...
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Questions on Sampling with DMA FIFO (FPGA/ RT)
Hi All, I am working on a cRIO project and I have some questions on the sampling. I'm not new to LabVIEW, but I am new to FPGA/ RT programming (and also the concept of sampling rate). 1. My hardware...
View ArticleScan mode, sampling and inner clock Crio
Hello all,I am new with labview and have few simple questions I need to be sure with them. I am using Crio-9076 with input card NI9234 and output card NI9263.I have simple program where I generate...
View ArticleMissing Sub VI NI_Database_API.lvlib: DB Tools open connection (path).vi in...
Hi,I have multiple number of VIs being called dynamically and I need a connection with the database. Everything is working fine in the development environment. I created an .exe Installer from these...
View ArticleUSB6225数据采集有问题
我用NI-USB-6225数据采集卡同时采集两路信号，labview编程时使用的DAQ助手，但是不知道什么原因，两路不同信号的输入，采集到的数据竟然完全相同。比如，我硬件接的是AI0和AI1，那么这两个信号会完全一样。如果我硬件不变，软件中的channel换成别的通道，比如AI2和AI3，那么采集到的信号还是一样的（AI2和AI3没有接任何线）。并且当我AI0上接的信号发生变化时，AI2和AI3上面...
View ArticleTab Delimited Text File to Assign Tasks
Hello, I am looking to create a text file which can: 1. Write to DAQ2. Read to DAQ3. Write to RS232 4. Read RS232 I'm looking for all 4 of these functions to be called top-down in any sequence as it...
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Unable to Launch LabVIEW VI from Command Line with Gitlab CI
I'm currently trying to set up continuous integration with LabVIEW using Gitlab's continuous integration services. Here's my setup: Windows 10 Virtual MachineLabVIEW 2015LabVIEW-CLI for LabVIEW/Command...
View ArticleI2C write to the DAC
Hi,I would like to address the DAC correctlyHere is the datasheet:https://datasheets.maximintegrated.com/en/ds/MAX5380-MAX5382.pdf Slave address is: 0x64Can someone tell me if I am doing this right?...
View ArticleProblem/Error when using search function in Express VI "File Dialog"
hi everybody, i've encountered a problem when i want to use the search function in the express vi "file dialog".the express vi uses the absolute path of only the last file of the search result for all...
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Programming FPGA, unable to achieve the desired sampling rate
I have the following hardware:sbRIO9267two NI 9205 C-Series Modules connected to the sbRIO via a 2-Slot C-Series RIO Mezzanine Card (RMC)I want to sample 10 Channels on each of the 9205 modules @ 25...
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Create .net class derived from treenode
Hello,I try to create a .NET TreeView on the front Panel. I want to attach a Combobox to some child nodes - that works fine in C#. But I have no idea, how to create a new .net class in labview, which...
View ArticleHow to generate digital square wave with PXI-6251?
Hi gents, I am trying to generate two square waveforms and my only requirement is to set frequency up to 1 kHz. Nothing more. But I tried lot of DAQmx concepts and I don't understand the principle of...
View ArticleUnknown Temperature Probe
I’ve learned some more about my thermistor after examining it more closely. I have a high resistance probe. At room temperature it measures about 28Mohm. I believe it has some capacitive and inductive...
View ArticleRunning VIs Simultaneously
I have system set up with a Data Translation DT9804 DAQ card (utilizing the LV-Link 3 VI library). Currently two of the AI channels are being used by a main VI program that scans the channels...
View ArticleLabview will not install on W10 1703
There seems to be a problem with Labview - either version 2016 or 2017 installing on W10 1703.I am using a clean install of W10 1703, and my Labview installation packages are held on our departmental...
View ArticleError -2147467259 w/ DB Tools Open Connect while using .exe
I am using LabVIEW 2015 (32-bit) and I am having an issue connecting to a SQL database while running the executable. The program works fine while in the development environment but once it's built the...
View ArticleHow to Send PWM signals to a Motor Controller through DAQ?
So i recently started with labview... and part of my first project on it requires that i use a motor controller to control a fuel pump. During my searching for a compatible fuel pump and motor...
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Generate sinusoidal waveform using feedback loop control based on NI FlexRIO...
Please Open the NI example of "Getting started with NI 5783" first. In this example host VI, look at the analog output loop, you will see there is a case structure used to generate sine output signal....
View ArticleArray manipulation
Hi!A brief intro to my problem first:A portion of the project I'm working on creates an XY graph to show the sound wave that is being acquired/read, easy enough. Now I need to change the graph so that...
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