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Periodically iterating through a 2D column array and plotting the data per iteration

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Hi,

 

I am attempting to plot data that's read from a spreadsheet, but rather than plot the data all at once, I am looking to plot the data in 1 - 2 second portions as I iterate through my array. The idea is to create a plot that would slowly fill itself with new portions of array with each iteration.

 

I have included the VI in-question, along with the spreadsheet and an image of the figure I am trying to plot. Just for reference, the VI was borrowed and adapted from the thread "Read Data from Spreadsheet (.csv) and Display in LabVIEW" by SpaceHunter.

 

Thanks in advance!

Omar


NXG X Scale

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The property node for a chart has x scale as a read only and there is no offset multiplier for the x-axis.  How can I customize the x-axis of a chart in LabVIEW NXG?

Unbundle Cluster from SubVI

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Hi,

 

I Can't Unbundle a cluster from SubVI. 

Simple cluster is setup as a output from SubVI (Setting.vi) - running simultaneous with main VI (xy graph.vi).  Only solution I have found is to Enable Database Access which allow me to unbundle the cluster but even though when I run VI data is not transfer across from cluster to the main VI.

 

Thanks,

Gregorian7

Programming a Solenoid

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Okay so I'm really out of trying to possibly understand on my own now. I'm attempting to merely code a solenoid to run a pneumatic piston on my team's robot for the First Robotics Competition. I'm building off of last year's code and so I didn't do really any of the programming in the REAL ONE.vi file, except the solenoid programming at the bottom, I've looked at many other forums and guides and team explanations and I just can't seem to get the darn thing to work. I'd love to be taught what I did wrong, but will very happily settle with someone fixing my broken programming and sending it back so I can poke around and figure out what happened if need be. Would just love a working piston.

Sincerely,

SporeGameOfTheYear

make a RT system by software

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I need to some HIL tests, but have no such machine , especially the RT system.

 

I wonder ,if it is possible to make a desktop PC to be a  RT system with multi-core CPU just by NI's soft.  and then ,I just need to buy some software and cards from NI , and can quickly start my test.

What kind of variable is the "detected amplitude" output of the Extract Single Tone Information Vi?

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I asked this question because I create an indicator for that output and it creates what looks like an array of a single element. 

Contrary to that if I use the VI "Tone Measurements" I get just a double.

Why is that? 

get the graphics on the Tektronix DPO 4104B screen

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How do you get the graphics on the Tektronix DPO 4104B screen from the Labview program?

Thank you all.

labview Web method can not get my post data

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Hi,professionals, I want to do some data collections by labview web service. there is no need to be much complex ,just upload some data and an attached file . but :

 

at first ,I use an add function by GET method , en, it works well ,after i fill in the number inbox in chrome(open the indexuploaddd.html , sorry ,the name is not standard ) and click "submit" button,I can indeed see the variables change on labview front pannel .

 

secondly ,I do the file upload. I use the index2.html in chrome , choose a file in submit it , en , file upload succeed . BUT, the value a cannot transfer to the front pannel's control box. I searched the forums , but can not find a direct answer , sorry , I am not good at net technology ,I need a direct instruction .

 

 

From my view , the GET function can properly send single data to the server ,but the POST function can just do file update , I can not find a way to transfer single data by POST , as well as I can not find a method to upload file by GET function .I need to make them together .

 

the attached file is my source code . forgive me for it is not english version .but I dare not to transform it , in case I destory it so as to restrict your judgement.   the useful information&file are just index2.html and the indexupdateddd.html and the VIs' settings, you can ignore other boring Chinese words.

 


FPGA compilation stops at "Synthesizing: Report RTL Partitions:" with 0% CPU cost

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Hello:

 

I meet a problem when compiling my FPGA code:

 

It stops at Synthesizing, and the xilinx log stops update at :

Report RTL Partitions:
+-+--------------+------------+----------+
| |RTL Partition |Replication |Instances |
+-+--------------+------------+----------+
+-+--------------+------------+----------+
---------------------------------------------------------------------------------

 

 

In task manager I can see the vivado is not doing anything right now.

 

I'm working with FlexRIO 7935, LabVIEW 2018 f2

In my code i'm using DRAM with some BRAM (about 25%), and some host to target/target to host FIFO, as well as some DSP48, code write in two clock domain, DRAM clock and 40M Clock.

 

If I put all code in DRAM clock domain, it actually compiles, but with DSP48 fail to meet the timing requirement,  so I use a FIFO to separate DRAM operate and process code, and it here I meet this problem.

 

I already checked my system is working, I can compile blank VI, as well as some other simple VI.

 

Any advice? Thanks!

Error Install NI Vision Development Module 2018

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Hi,

 

I want to install NI vision development module 2018. But, I get an error stated in the attachment file.

Anyone know why I get that error?

 

Thank You

antenna pattern

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hello everyone;

Is there a package on labview that support the antenna pattern.

I want to help my students to know the different kinds of antennas (omni_dir,directional,yagi....etc) and showing them the pattern of each kind,is labview has this capability?

Store elements from a 2D array in a 1D column vector

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Hello NI Community,

I would like to store 6 elements from 2D array in a 1D column vector. Any suggestions?

 

Thanks in advance!

Best regards,

MarcLee

2018 SP1 introduced error in license checkout from Volume License server

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Having built a volume license version of the 2018 SP1 package and then run the update, the Licensing Wizard now pops up and claims to be unable to retrieve licenses for 2018 SP1..a bit similar to what happened with 2014 SP1 

 

I can see the network licenses for 2018 OK in the License Manager....so perhaps once again there is a VLM-issue where 2018 and 2018SP1 is not covered by the same license(?).

Project Manager position

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Hi,

 

when opening a project, the window size is not properly restored. I checked the ProjectExplorer.ClassicPosition property in the *.lvlps file, and the difference is 12 px in the vertical and 2 px in the horizontal direction.

This happens at least in LV2016 and 2018. Can anyone else confirm this?

 

Steps to reproduce:

  1. Open project and adjust project manager window size.
  2. Save project and observe ProjectExplorer.ClassicPosition property in *.lvlps file.
  3. Close project and open again.
  4. Without changing anything, save the project and compare ProjectExplorer.ClassicPosition with previous value.

Any ideas?

How to readout in Labview from third party camera

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Hello,

 

I just wondering how I can readout from an ANPR camera (Reading out number plates on cars) into LabView. The camera I'm thinking of, is found in attached manual. I see there are different data transmissions like FTP, TCP/IP, Wiegand, standard protocols and Serial port. Is LabView Professional supporting these protocols, or do I need some expensive modules in addition like Vision Developement Module?  I just want to readout an image of the number plate and save it to a specific folder. 

 

br,

paalbrok


Invoke Node - Mass Compile Method Error 1043

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Hi

I've been attempting to make a simple executable, using LV 2017, to mass compile a specific directory on our systems.

 

I've used an App Invoke Node and selected the 'Mass Compile' method; it works perfectly well until I build the solution to produce an executable;  once built, running it raises a 1043 error meaning...

The property or method is not supported in this version of LabVIEW. This error can occur if you use a property or method that is not supported in the LabVIEW Run-Time Engine.'

 Quite frustrating as it works perfectly as source code.

 

Source code attached.

Any help much appreciated..

 

Thanks

Les....

 

MassCompile.png

 

Empty bundle input does not break VI

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When did LabVIEW start to allow empty inputs on "bundle" nodes? Or have they always and I forgot? 

An empty input to a bundle element is accepted:bundle no error.PNG

An empty input to a bundle by name element is not:bundle by name error.PNG

 

I distinctly remember using the feature of that if I add a control to the cluster, the bundle node would break, and I would see where I needed to update the code. This was about the only advantage I saw with "bundle" compared to "bundle by name", Now I am not helped at all by the bundle node since it is not breaking the VI.

 

(LV2018)

error Drivers DAQmx Polymorphic sub VI is broken

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Hola tengo un problema con los controladores Daqmx, cree la tarea en la medida NIMAX pero actualicé el NImax 16.0 a 18.0 y los controladores que no recorgnizaron volvieron a ni max 16.00 y envié este error, I have labiew 2016 32 bits and windows 10 64bits, the Daq mx is 4065. 

How to convert Image to base64

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How to convert image (Such as .png/.jpg/.bmp/.mp3) file to base64 strings by LabVIEW? Because base64 is one very popular format on the web/internet application. Many online cloud APIs need upload the image file with base64 string through HTTP/POST method. Such as the online OCR API, TTS API... Thanks in advance.

Display 3D Models on a LabVIEW

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