TT text, file audo, date file

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• Digital loading data from text file for Test of numerical limit

  I am a new user of TestStand 2014.  Just downloaded the demo ran successfully the computer.dll tutorial & example "loading limits a File.seq text"; & is now trying to build my own sequence from scratch.  I want to load a number from a text file using the property Loader.  The file contains the following:

  GGbeg
  484
  GGend

  My hand sequence contains 2 markets (see attachment):

  Charger property (which reads the text file & must store the number 484 in the Step.Result.Numeric variable, right?)

  GG-digital-test (which should test the number 484 in Step.Result.Numeric as a Data Source, right?)

  But when I run it, the measure indicates "0" for the value instead of "484".  What I am doing wrong?  Thank you in advance for your help!

  George

  Hi George,.

  The text file must be in the format, includes no property magazine. Use the following in the text file to make it work:

  GGbeg
  Result.Numeric
  GG-digital-test 484

  Value of the variable

  Value of the variable

  Value of the variable
  GGend

  In the Tools menu of the sequence editor, there are some 'Properties Export/Import' tool, which helps to create text files to be used with charger property stage. I highly recommend to create the new file using the tool and then edit the file to change the values.

  -Shashidhar

• How to save data in the text file of Spartan 3

  Hi all

  I would like to kindly save the data table text file or a spreadsheet on vi using fpga spartan 3e as an fpga target. Once I added all the functions related to the operation of file, it gave an error that these functions are not supported by the target device.

  could you please help me with this

  Thank you

  Rania

  Hi David,

  Thank you for posting. You use LabVIEW? If so, what version of LabVIEW FPGA do you use? You use a host VI, or any deployment of code at your target to run? The file IO VI probably won't compile to target because they are not intended to be used on your host computer. Resources and the paths of files do not exist on the target FPGA, but rather on the side of the host. I have included a link below that describes how to transfer data between the FPGA and host. I hope this helps!

  http://zone.NI.com/reference/en-XX/help/371599F-01/lvfpgaconcepts/pfi_data_transfer/

• How to add data to a text file?

  Hello

  I want to add data to a previously created text file. When I used writing text file.vi. It replaces previous data.

  Try to use the function "set position in the file" (file e/s palette, advanced functions) before writing the data.

  either open the file, position set to finish, write the data, close the file.

  Ian

• Writing data in the text file or excel spreadsheet

  Hello

  I have a silly question to ask questions about the writing of data in a text file or a spreadsheet. I have an example that simulates a sine-swept DAQmx. The output it provides is the (amplitude and phase) frequency response function that is plotted on a graph (see VI) attached. I like to use these data for further analysis by transmitting the data to a text file or a spreadsheet. I've tried a few things, but the thread is broken. I guess I use the sink badly - so I was wondering, can you please advise me on what sink should I use?

  Your help would be very appreciated,

  Thank you very much

  REDA

  The wire is broken, because you cannot connect this type of data to one of these two functions. The data source type is a table 1 d of the clusters, where each cluster contains two tables. The text file write accepts strings, not clusters. Writing on a file action accepts dynamic data, and while you can convert dynamic data tables, there is no built-in mechanism to convert a table 1 d of the clusters of two matrices.

  What you need to do is to convert the data in a format which can be accepted by these functions. Since you want to have a "spreadsheet" file then you should use writing to the spreadsheet file that creates a delimited text file. Since the frequency data would be the same for the plot of the magnitude and phase diagrams, you can have 3 columns: frequency, amplitude, and phase. You can take off the items using Unbundle by name, and then create a table 2D of each element of the cluster. The real question is to know if you want to save the data at each iteration and if you simply add on the file. The attached figure shows write an initial header and then adding just streaming the data.

• Convert data from text file to display for hex UDP transmission controls

  Hello

  I'm reading packets ethernet from a text file containing the actual hex data packets to then send these accurate return through a writing UDP hex data. I can't understand how to feed data into the function of writing UDP as real rather than characters ASCII hex data, as it does by default. I had the screen on the last VI before the writing of the UDP to "hexadecimal display mode" and if I manually type the hexadecimal values in the VI (hexadecimal string to binary String.vi - attached), then it passes the commands correctly. However,... when I fed the string of text in my text file data in this VI, it seems to be the substitution of this hexadecimal display on the VI input mode and the resulting entry in my UDP is still ASCII character mode. I tried to use a cast inside this VI, type... but that doesn't seem to work right. I have attached the main VI and VI which tries to prepare data before reading the UDP protocol. I've also attached an example of text file of data that I am an attempt of analysis.

  Any help would be appreciated,

  Thank you

  Hi jsrocket,

  the attached example should work as a transformation.

  Mike

• LabVIEW data into a text file

  I have a LV program to save the LabVIEW data into a text file. The LV file is attached. My problem is: the first data that are saved after the headers of data, is on the first line of the text rather than the second file. Ideally, it should be line 1, line 2 from data headers. I don't know what is the origin of the data to be concatenated with the headers. Can anyone help on this please.

  Thank you and thank you for your time in advance.

  Hello!

  Your problem seems to be quite simple, if I understand it right.

  All you need is a constant to be concatenated with your header line end.
  The end of the constant line is equal to CRLF.

  So, if you concatenate the header with the CRLF, your concatenated string will be like: "header \n".

  and then, in the following lines (1, 2, 3...) your data will be available as it was already.

  I enclose a snapshot with this change.

  I hope that solves your problem!

  Best regards.

• read and medium n data from text file

  I acquire [a waveform of reading] oscilloscope digital data that is stored in a column in a text file.

  I need to read selectable amount of data at average/parcel them points.

  So basically I want to have a text file with millions of data points, but I want to draw not to say that all 1000. data point. I tried a lot of things I found here on the forum, but as I'm new to LabView, none of them really worked.

  Does anyone have a suggestion.

  Thank you.

  
  

• How to write graph of waveform data to text file with the option to the user to do

  So, I'm new to labview and will have bad to write a program in particular.  I have a waveform graph that runs for 120 seconds, generating a sine curve.  I am, however, having a time difficult get the program to write the x and are coordinated in a text file.  I've attached what I have so far.

  The first task I was assigned was to write a program that creates a curve of snusoidal on the front panel by adding a data point every half second for 120 seconds.  The plot should starts only if the user presses a button to start.

  The next part is to give the user an option to write the data generated in a file of worksheet called 'sine.txt '.  The file name and location should be hard-coded.  The file must contain the x and there contact information of each data point in columns separated by tabs, also known as the delimited.

  I spent several hours refining the attached program, and I can't seem to make it work right.  Any suggestions would be helpful at this stage.

  Sincerely,

  A student of chemistry frustrated whose research mentor is out of town

  First, you create files Excel.  You create text files.  And it seems that your writing on a file already created X (time) vs Y (curve of data) that is delimited by tabs.

  All you do is simply too complicated or a Rube Goldberg.

  All you need is the joint.

• How to extract specific data from a text file

  Hello world

  For my project, it is necessary that a parameter file is read at the beginning, so that variables be initialized with specific values that change with the user.

  For now, the mode of action is as follows: the values in a sequence specified in a text file are read and saved in a table and the elements of the array are extracted according to their index.

  The problem with this implementation is, that if for any reason any changes file format, for example we want to use a settings file from a previous version of the program, which has the values for the variables of same but in a different order, the only way to have good values for the parameters is to change everything accordingly which is really time wasting.

  Could someone suggest another implementation that make reading the different values independently of their order in the file, for example by analysing the file for specific strings and by reading the value after the string?

  Thank you very much.

  P.S. I've attached a screenshot of the routine, which I use now.

  Hi panagiov,

  Find attached files.

  Method 1: in this you can search for each variable separately. You can use "Live Config file" to get all the keys (variable) at a time, and then you can use for loop to get their values. Or you can access values as indicated in the present code.

  Method 2: Here you will have all the data at once. You will get variables and data (table 2D), you should look for the variables as needed.

  I hope you understand these methods.

  Good luck

• Average data from multiple text files

  I am new to labVIEW so any help is appreciated:

  I have a 100 txt files with two columns (separate tab) for a value of X and Y.

  I need the average of the values of Y to generate a single file and generate X against Y graph.

  So, how to read the data of these text files? (without having to select each one individually) and the average data and create a chart XY him?

  Thanks in advance

  There is a function to list folder in the palette of the file i/o that will return an array of file names.  Feed this table in a loop to open and read each file in turn.  Put in a new file, build a table with her, process the data or do whatever you want.

• problem with the backup data in text file

  Hello

  The problem I am facing wihile, saving the data in the text file is that everytime when I'm slecting the path of the façade, data that are recorded are added with the previous data, not only in the new text, the new data set is saved but also, is there any previuos run for the program , the corresponding data is also present in this text file.

  However, when I change the same ''(file path) to 'constant' in the control block diagram, and then add the path of the file, it doesn't have this problem. Basically, changing the "file path" constant in the diagram of control block (so that it is displayed in the front panel) is at the origin of the problem.

  Help, please!

  Thank you

  Your shift on the loop Register For is not initialized. It will keep the value of the string since the last time that he performed. That initialize and it should solve your problem.

• How to view the data in the text file to the format column

  Hello

  I am acquiring data from an oscilloscope.

  Wen I save the data in a text file to aid wite spreadsheet string, all the displayed voltage values r first, then values of time... in addition to its delimited by tabs

  How can I view it like the r of time values in a single column and the voltyage of the r-values in the other column

  thanx

  Hello

  I don't know what is exactly the format that you found. I think you should try to use the function Array transpose (from the palette of function table) before you pass the array to write to string of spread sheet function or directly loyal to Terminal son transposes on writing worksheet function and see if you get the desired results.

  PS. : Share your code would be appreciated.

  Kind regards

  Amine31

  (Kudos are always welcome, mark it as a solution if it is the only)

• Add data at the end of a specific line in the text file

  Hello

  I'm trying to add data at the end of the last 4 lines of the text file attached with the ' table to add.  4 rows (422.5800 entry), I would add the first entry of the 'Array to add' entry, on the 5th line to add the second entry of the 'Add picture' and so on.  How can I do this?

  Any help will be appreciated.

  Sincerely,.

  hiNi.

  After re-reading your post, I think that's what you really want to start adding after the first 4 rows.

• Import data from text file of control of the ring.

  Is it possible to import data to a text ring with labview control.

  I have several definitions of register in the ring controls, but manual entry would take a lot of time.

  Was wondering if there was more automatic way, I could read the values from a file.

  Thank you

  Jim

  Using the first method gives you the ability to extend such that each column specifies a control of the ring if you need fill the multiple rings.

  This example assumes that all of the three rings contain the same number of elements. If this isn't the case, you will need to create a Subvi, which removes the empty elements. [Edit - create a text file that contains a column for each ring, separated by a tab character.]

  

• I'm new to Labview. How can I save oscilloscope data in a text file?

  Hello

  I have an oscilloscope (TDS2000) connected to my computer via USB. I want to record the oscilloscope data in a text file or a spreadsheet using labview. I'm new to labview. I only know about front panel and block right now. Please include a bit of inmates explain about data acquisition. Thank you

  I already said that your question has nothing to do with data acquisition devices of NOR. This means that DAQmx has nothing to do with it. You do NOT data, as defined in the world NOR / LabVIEW. On the main page of The Instrument Driver Network , you will see a section called "using the Drivers." The links that explain how to use the driver that you downloaded. The functions that you will be sliding to diagram must be in the Instrument of e/s palette, assuming that you have installed the driver properly.