Using Multiple Daq
Hello,I was working on some sensors, for example, Thermocouple and Loadcell. I have prepared 2 seperate vi's for them, but I wanted to merge them into one and see the results in one front panel.
So I put them in one VI and tried to run but it did'nt happen. Then I set one of them start 3 seconds after I push the run button, then it worked for other one but after 3 seconds process stopped.
After little investigation, I learned that some cards have only one ADC so they can't operate two analog signal output, but I am using SC-2345 and I guess that is nonsense. also for info; I am getting loadcell data from SC-2345 and thermocouple data from SCC-TC01 connectod to SC-2345. also SC-2345 is connected to NI USB-6259 screw terminal.
Conclusion; how could I get data from multiple Data accusition devices in one blok? I will porbably have to use 6 more daq in one VI, and that should be possible.
Accessing every other data point in a dynamic data type (question in attached images)
So I thought that my question would be best explained through word equation editor, so I have attached screenshots explaining my situation and what I am trying to do (temp 2).
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[img]Not possible to subscribe an OPC server to the Distributed Systems Manager
Hi everyone,I am trying to subscribe a OPC server into the DSM and it gives me back a "NI OPC client Status" OPC like tree.
When i try with localhost matrikon it doesnt give a problem, so i expect that it is a network permissions issue.
is it? is it not? is there something in the NI services that i need to fix? is it DCOM?
If it is not, can you please give me some advises?
[img]IMAQ Machine vision does not appear in labview palletes
Hello everybody! I have been installed NI IMAQ, IMAQdx an IMAQ I/O. in Labview 2012, and I have been activated as well, but the problem is functions like edge detector does no appear in my pallete, only a few appears.Here is a picture of the vision pallete.
What could be doing wrong? Any idea?
I'm using IMAQ 4.7.2
IMAQdx 4.1
IMAQ I/O 2.6.1
Labview 12.0 (32-bit)
Best regards!
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[img]Rate(Hz) as an equation in DAQ Assistant
I was trying to put my Rate in the DAQ Assistant as an equation, is there any way I can do this?Thank you!
Error Reading Cluster from disk
im trying to create error cluster of wire type yellow color, i tried and im getting only pink color , could u help meIMPLEMENTATION OF SOLAR MPPT METHOD
can i know how to implement variable size incremental conductance method for tracking my mppt.Also define hardware that is to be used (i think CRIO should be used).
how to connect the pv panel to a crio or i need some other hardware..
and last how to control it.(the diagram on the control panel the block diagram)
i mean to say that the mppt method can be implemented using labview blocks or i have to write the coding in mathscript or something like that. i just want to get all these things clear..of how to perform a mppt method (harware +software)...and after that how to give the desired pulses to a boost converter(by using some sort of hardware?).
Problem While playing .wav File
Hello everyone,I am having an issue while trying to play a .wav file. I want to do this in order to report an alarm.
I am using LabVIEW 2014 SP1 f3 in a 64 bits Win7 SP1 computer. The strange thing is that the Test1.vi, which is attached to this post, works as expected in every 64 bits Win7 SP1 computers. Nevertheless in a 32 bits Win7 SP1 computer a long time passes till the file can be played (40 seconds approximatelly or even more).
In order to play the file I used the Play Sound File.vi. I have realized that the problem is originated in the Call Library Function Node included in this VI (function int32_t PlaySoundFile(const int32_t devID, const LStrHandle path, const uint32_t waitDuration, uint32_t *task)Smiley Wink. It just take ages to be executed.
All computers were recently updated with the most recent windows updates. Nevertheless the problem persists. The final .exe application will be executed in the 32 bits PC. But under the current circumstamces it will not be possible to play any sounds.
Has anyone experienced such a problem? Some advice to solve this predicament?
Any piece of information to solve this issue is highly appreciated.
How to use an FFT with decimal I32
HiI am new to Labview I wonder can anyone help I have used LabJack SPI to pull in samples of my accelerometer 125Hz
I end up with Decimal I32 and can graph it fine. But I have no Idea how to use it with an FFT I think I must have to convert it as most want 1D can someone please advise me.
Many thanks
Calculate phase difference between two sine waves on FPGA
I have a problem to calculate phase difference between two sine waves on FPGA. Can anyone help please? Theoretically I could use the equation:phase difference = arc cos (x1.x2/|x1||x2|), where x1 and x2 are the sine waves.
However I am looking for a practical solution that can be calculated on FPGA. Any bright idea please? Or how to implement the theoretical solution on FPGA? Thanks.