windows system exec error in application causes app to crash
The basics:LabView 11.0 (32-bit)Windows 7 enterpriseBecause I have to control an elevated app I run my built app elevated on a Win7 64 machine. I have an application that uses the system exec.vi...
View ArticleParse data from COM port
Hello everyone! I have a problem. I need to parse data from COM port to text file. I tell you my situation with example. The string looks like:K123T0123D1234GX1234GY8328GZ8231........ And I need to...
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Creating a user interface for an executable running as a Windows Service
Hi, I'm planning out a program which will be running as a Windows Service, and I was wondering what is the best way to create a program which will act as a user interface for this service.The program...
View ArticleFFT with changing sample size
I have been building several VI's to compute the power spectrum of an incoming signal. I would like to try something more advanced, but I honestly don't know where to start. What I would like to do is...
View ArticleClear Analog Output Memory
Hello, I have a PXI-6733 Analog Waveform Output card and a VI that allows a user to dynamically select a function type/parameters that they want to output through the card. If the user selects a...
View ArticleArray problems
Hello NI Forums, I currently develping a VI to specify voltages that will be send to device which will be directing two mirrors. The idea and set-up are pretty basic, but actually programming it is an...
View ArticleConvert "hex string" to hex
I have a vi reading in from a VISA Read a string of the format; AAAA,BBB,CC,DDD,EEE,FF,GGGGG CRLF The 'FF' should be a hexadecimal value, but when read in it is in string format. A simple string...
View ArticleAccessing parallel port through add on PCI Express card
We use the parallel port to send event markers to an EEG system through labview. In the past the parallel port address was standard (378) as it was on the motherboard. Using a newer computer and...
View ArticleDetect wifi router name
Hi could you please help me, I would like to detect Wifi router name in LabVIEW so I should be able to search and detect wifi router names arround. Could you please let me know how can I do it in...
View ArticleEmbed binary string in string spreadsheet file
Hello LabVIEW wizards... So I'm using the Write to Spreadsheet File VI to create a nice, formatted, tab delimited report file from one of my data acquisition programs. In one of the cells of the...
View Article2D array becomes (sub)array when attempting to write
I'm trying to write a 2D array to a file (want a text file), but it seems to change it to a 2D (sub)array when I connect it to the Write to Text File, making the terminals different types, causing an...
View ArticleChart with Time and Date on x-axis
Besides the guide here : https://decibel.ni.com/content/docs/DOC-8097is there any other new method that can be implemented using LabVIEW 2012?
View ArticleHow to made multiple selected value boxes in GUI
Hi, I am writing a program that users can put a check mark on several boxes for input voltages (like 0.6v 1 v 2 v 3 v).The seleted voltage will be looped into an Vset vi. Does anyone has any idea how...
View ArticleStart Asynch Call plus Active X is causing event structure in parallel thread...
[Cross posted from LAVA] First off let me say, I understand sending any sort of heartbeat in a timeout case is not a good practice. What I am looking for here is why this is happening. I am launching a...
View ArticleWhat does Visa Read.vi do with a Zero Byte Count?
If I use the Bytes at Port property node to feed the Byte Count input of VISA Read.vi, and the value is zero, what happens? Does VISA Read.vi return immediately with zero bytes?Does VISA Read.vi return...
View Articleannotation of multiple graphs that are contained in a cluster
I am attempting to implement separate annotations on graphs that i have input into a cluster but the problem is when i try to define the separate annotation values for the different plot areas, the...
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Import Web Service Validation Failed
Hello,I am trying to interface my LabVIEW 2011 application with my company's internal 2010 Sharepoint server via web services. The WSDL on the server seems fine as other applications use it without...
View Articlereading LabVIEW comments with external software
Is there a way to read comments in a LabVIEW block diagram from external program like C#, VB, etc... This will be useful for documentation.
View ArticleWrite to Measurement
I'm trying to have a new log file created everytime the button goes from the off state to the on state. The problem is that when in ON state, the data in the new event is logged in the same lvm file. I...
View ArticleParallel data acquisition problem
Hi everyone!I’m facing a problem with acquiring data from my NI 6259 BNC card.What I basically want to do is to measure, let’s say, both RPM of the jet engine as well as temperature. I have...
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