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MQTT: Error 66 when reading subscribed topics
Hi, for the past month I have been working on two MQTT clients that will communicate with each other over a CloudMQTT broker. The clients use the DAQIO LabVIEW MQTT library (found here...
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How to load correction factor onto raw data trace
Hi Guys I am struggling putting a correction factor onto current raw data trace when developing RF test software. I was using Agilent E4440 PSA, PSA screenshot.gif was the screen that I was working as...
View Articleneed help to find average value from input which varies with time
the purpose of this vi is to calculate the total average values from voltage inputs (that we generate from the sensors).we face difficulty to get average value of the voltage. the value of the voltage...
View ArticleHow to plot a peak value of signal vs time in labview
I have pulses coming at a repetition rate of 1kHz and I am detecting them using a Photodiode connected to a picoscope. I want the peak vale of each pulse and want to plot it as a function of time.How...
View Articlebluetooth labview connection with robot arm
i used labview and manage to get the program to control the robotic arm which is powered by epos driver to move but i want to make it a wireless connection between the arm and my computer, what i was...
View ArticleElements in Cluster to Array in Cluster (generic)
Hi,Is there an easy and generic way to combine multiple clusters (containing the same datatypes (1 int and 2 strings)) to get a cluster containing arrays of the same datatypes (1Array of int and 2...
View ArticleLabVIEW Class
HI,Lets consider there are 3 classes as A,B,C. Class A is parent of Class B and C. I'll be read a class object from file using "Get LV class default value.vi" using Class B API.I just need to check...
View ArticleHow to apply multiple if statements to one input
We are trying to apply multiple if statements to a value of frequency, and want to display a particular string to the front panel depending on whether the frequency is in one of our 12 predetermined...
View ArticleCommunication problem with Thorlabs PM100USB Power meter
I have a LabView Instrument in which I use the Thorlabs PM100USB Power meter. (VI attached). During measurement, the programm suddenly stops measuring and stops responding, then starts and stops...
View ArticleHow do we debug lvlibp which is involved by a .exe file
When I debug a debug-enabled lvlibp which is called by a source code A, I can set breakpoint in a *.lvlibp:VI and the breakpoint is valid. But the breakpoint is invalid when I build the source code A...
View ArticleRS232 NI MAX Communication with BK precision instrument
Hi, I am using 1901B from bk prevision. On the "Programming Manual" page 11 shows how to use command set to communicate with the instrument. I am trying to use those command from LabVIEW to control...
View ArticleWebServer alternative to Embedded UI?
Hello LabVIEW community, I want to say thanks for taking any time to read this and lend a hand.Here is the scenario: I developed an application in preparation for a control system on a cRIO 9035 which...
View ArticleDrivers for BK Precision 894
Hello All, My goal is to use LabVIEW to control the BK Precision 894 LCR Meter to automate my testing. I am trying to use the BK Precision 894 using the examples in this driver for LabVIEW...
View ArticleHow to multiply first line of Array A with last column of Array B?
How to multiply first line of Array A with last column of Array B element by element?Both Arrays are 2D square arrays.
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Serial Communication - Working VI doesn't work as sub-VI
Hey All, I modified somebody else's producer/consumer example for my serial communication project, and the VI works fine as a standalone, but when used as a sub-VI in a simple wrapper, the wrapper's...
View Article"Reverse Lookup" using Variants?
Hello all,I am using LabVIEW 2014. I'm trying to implement a "reverse lookup" using variants. The names are strings, and values are 1D DBL arrays. Typically, the Get Variant Attribute takes a name...
View Articlemysterious printer invocation
I am using LV2017 32-bit on a Win10 machine. At a high level, the bizarre problem I'm seeing is when I click Exit on a sub-dialog, a screenshot of the VI is sent to the printer. Some users complain...
View ArticleCommunication with Xbee
Hi there, I am having some issues to send an API frame through VISA to my Xbee network modules. I have Three modules, one coordinator and two end devices, which I am trying to send a command to one end...
View ArticleContour Line function in Computational Geometry issue
Hello! Somewhere in the forum I've read already, that the Computational Geometry functions are buggy. So maybe I found another one or maybe it is my misunderstanding of its proper work. The problem is...
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