qQ薇芯1151714174）操办加拿大萨省大学假学历US假成绩单#US假毕业证#US假成绩单#US假文凭#US大学假学历University of Saskatchewan
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qQ薇芯1151714174）操办加拿大萨省大学假学历US假成绩单#US假毕业证#US假成绩单#US假文凭#US大学假学历University of SaskatchewanqQ薇芯1151714174）操办加拿大萨省大学假学历US假成绩单#US假毕业证#US假成绩单#US假文凭#US大学假学历University of Saskatchewan
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LabVIEW not uninstalling cleanly: can I delete manually?
Hello.
After installing LabVIEW 2019 I've decided to uninstall all previous versions that I don't need anymore ('14,'15,'16,'17) using the VI package manager.
After rebooting I noticed that my hard drive usage did not decrease by what I expected (10-20GB).
I've discovered that in c:\Program Files (x86)\..... the relevant 201X LabVIEW folders were still populated with GB of files.
LabVIEW seems to have uninstalled correctly however.
Thanks
Andrew
Can I delete these folders?
Why aren't these folders cleaned up correctly?
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Reading 12 daq cards with 16 channel each
Hi,
I have been developing a cod to read 12 daq cards with 16 channel each. The rate is 100k and they all are synchronized. My approach is to read all of them in one producer loop and send them to a consumer loop using RT FIFO. The system is a RT PXI. My question is if I should split the producer to 2 loops with 6 cards each or should I keep this to one loop. The reason I'm wondering is I think the having two loops will minimize the cpu load on a single core by using a second core to do half the task. Did I got it right? Is there any negative aspect by doing so? BTW it is continues sampling.
best regards
Ahmed
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qQ薇芯1151714174）操办英国Sheffield假学历谢大假成绩单#Sheffield假毕业证#谢菲尔德大学假学历University of Sheffield
qQ薇芯1151714174）操办英国Sheffield假学历谢大假成绩单#Sheffield假毕业证#谢菲尔德大学假学历University of Sheffield
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qQ薇芯1151714174）操办英国UBH假学位证#UBH假毕业证#UBH假成绩单#UBH假文凭#伯明翰大学假学历University of Birmingham
qQ薇芯1151714174）操办英国UBH假学位证#UBH假毕业证#UBH假成绩单#UBH假文凭#伯明翰大学假学历University of Birmingham
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qQ薇芯1151714174）操办澳洲Adelaide假学位证#Adelaide假毕业证#Adelaide假成绩单#Adelaide假文凭#阿德莱德大学假学历Adelaide University
qQ薇芯1151714174）操办澳洲Adelaide假学位证#Adelaide假毕业证#Adelaide假成绩单#Adelaide假文凭#阿德莱德大学假学历Adelaide University
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qQ薇芯1151714174）操办澳洲Melbourne U假学位证#Melbourne U假毕业证#Melbourne U假成绩单#Melbourne U假文凭#墨尔本大学假学历The University of Melbourne U
qQ薇芯1151714174）操办澳洲Melbourne U假学位证#Melbourne U假毕业证#Melbourne U假成绩单#Melbourne U假文凭#墨尔本大学假学历The University of Melbourne U
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chipKit WF32 WiFi firmware does not work
Hello,
I am new to LabVIEW. I follow the MakeHub tutorial and can finish them one by one except the WiFi part LINX . My chipKIT WF32 board does not show up in my router's client list.
Can anyone show me some tips to correct it?
Thanks. 🙂
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labview mobile interface
how can I send a sms to mobile from labview.
can anyone share the vi please
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Derivative of analogue signal
Hello!
I use NI cRIO-9075 and module NI9205.
I need to get derivative from analogue sensor, input AI0. How can i get this?
So, help please to get array from AI0. I have next idea: need to get 10s and 1st value from array, and then : dxdt= (x10-x1)/t. This infromation into graph wave.
Thanks!
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LINX add-on software
Hi,
For which Labview Version, LINX add-on software is compatible?
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VISA资源使用问题
Moved to Chinese board
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How to build an array dynamically based on content of another array?
Hi everyone ,
Let's say i have a boolean array of 6 rows (Input array) . I want to dynamically build another array (output array) that contains the indecies of the zeros/Falses in the input array. I made a block diagram for you to understand what i mean.
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about cluster element
Hello everyone ,
i am fresher for labview . Actually i need to read the cluster element(double 64 bit data type) as string value . so because of i used function called "number to fractional string" within a while loop for continuous reading . but when i see the result zero value is getting with original value .
please anyone can suggest me what is the problem behind this one...
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Basic question TDMS
Hi,
i build a small datalogger. It works now fine.
But i have a strange effect at tdms datalogging. It always stops at around 3h. Sometimes with error 6, sometimes not.
Samplerate is 100 and samples 100,too. So should be 100Hz.
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Will File Open Dialog run in any thread?
Labview default file dialog vi(Express VI) uses UI thread to load file.
It blocks other UI thread operations.
browse for Folder uses any thread(attached sample VI).
just like that I need wrapper VI to get file path.
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Controlling when a Global Variable is Read
Forgive me in advance if this is confusing, but the TL;DR is this: I want to be able to control the flow of when I read a global variable without needing to resort to sequence (or other) structures. Is this possible?
The project I am working on is an automated tester for an external device which we communicate with via serial port. In our original implementation of the project, all data for the device is stored in a single cluster, which itself is stored as a hidden indicator on the main VI and whose reference is passed around to every single subVI so that the comms subVIs can update the data and everyone else can see the latest data in real time. I recently discovered global variables and think that they might be a better fit.
My goal is to have each item that is stored for the external device as a separate control in a single global VI. I am aware that accessing globals copies the data, so I would break the cluster into all of its individual components to make sure everything is as speedy as possible. Here is my dilemma: because there is one thread working on comms all the time, we have some queues which send commands to the comm, which sends commands to the device, which responds soon afterwards. At present, I can control when the software looks at the telemetry data by using property nodes for the control reference with the error in coming from the error out of the command node. I have attached a simple example of a subVI I made to get the device into its Maintenance state; you can see that I pass a command to the command queue, perform a 2-second synchronous delay, and then read the telemetry from the telemetry reference.
Let me take an extra second to comment on the "Delay" block, because it's a perfect example of what I am trying to achieve. Before, if I wanted to delay for 2 seconds after something occurred, I had to use a sequence structure, like so:
Stuff like this used to be ALL OVER the code base. I know sequence structures aren't generally best practice, but I wouldn't have needed it if only the Wait (ms) block had the error in/out nodes most other VIs do. So, I made my own:
Now I can control exactly when in the subdiagram the delay occurs and ensure nothing downstream runs for the amount of time needed. Best of all, the other threads, such as communication, keep running perfectly in the background during the delay. So, I am looking for something similar with globals. For controls/indicators on the current front panel, I can just grab a property node and wire the error in/out lines to control when the read takes place. Without it, I am looking back at using sequence diagrams:
The only solutions I can think of are less functional than the current model of passing the telemetry reference around.
1. I am not looking to use functional globals. That adds unnecessary overhead for what I feel like should have a simple solution. If it is the ONLY solution, I would appreciate a diagram showing how it would look; I feel like I would need an enum with all of the telemetry values pre-defined as a programming safeguard against using strings or something.
2. I know there are ways to get references to globals so that I could use its property nodes, but that has even more overhead.
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Interfacing GSM Module with Labview
Please someone tell me how to directly interface GSM Module with LABVIEW ?
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How to structure a project
Hi, everyone!
I have a question about how to structure my project So i have a PC and a cRIO connected through ehernet. I have a user interface for the PC. For the cRIO i only have a VI which does the data acquisition. (I am working with shared variables). The data is then displayed on the PC User Interface.
So my question is: Can I do one VI on the PC which collects the data from the cRIO and then displays it directly (using producer/consumer) or do the data acquisition VIs in the project need to run under the cRIO?
Thanks!
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Doubts on the While loop during the DAQ Operation
Hi Friends,
1. I am bit confused when we use the While loop what's type of clock it use while running the simulation. For example: If we plot sine wave graph and we can control while loop iteration using the wait(ms) object. Question: a. While loop take the clock speed of the CPU or processor? if it takes the clock speed can we convert our loop in such a way that we can measure the time in seconds(real-time data) and not the cpu clock time nor the while loop execution time. b. for my project, I don't want to know how much time the while loop take it to execute but i would like to see the time at which my instantaneous voltage sample is acquired and I can plot my amplitude vs time graph correctly? X axis of the graph must be that time at which the voltage is recorded. if there is any delay in such measurement, then what are the possible issue and can it be reduced?
2. When we use the Wait(ms) , does it slow down the loop with 100ms or it measure each voltage (voltage digitization) with the uncertainty on the order of 0.001s ?
3. Currently, I am dealing in acquiring the analog input from the gas flow meter, in that case, I really don't understand I should choose N sample or 1-Sample on demand. ? What are their advantages and disadvantages?
4. What is Deadtime? How can we reduce it during the data acquisition.?
5. There are two DAQinput and DAQ output what they mean? in my case i have the analog input from the device.
6. How can I improve my analog to digital data acquisition any suggestion on that?
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