Build a table or merging of signals?

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• How to build a table of measured data permanently

  Have a good day for everyone,

  I have a problem about the construction of a table permanently. I tried to find the solution for a long time, even if it's a task really simle.

  I want to build a table permanently, virtually:

  I like to read data from a measuring devices and I would like to sotre it one by one, at all times. I made a simple VI to present one where my problem is. The random generator represents the data given the measuring device.

  At currently I am able to store data only 1. When I want to store then that it is crushed.

  Thanks for anyone who can help me.

  Hi LIG.

  no need for a structure business when you can use autoindexing:

  

  Also, the code snippet shows how to convert a number in your reading string. You probably prefer tanks instead of integers...

• How to build a table of TDMS file open

  Hello

  Examples NI TDMS - Express write data .vi (time domain), I can build a PDM file with 2 channels (sine and square waveforms) data, which are stored as test.tdms.

  Using Express read .vi data (time domain), 2 channels of waveform data are read. How to build a table later? How to separate the 2 channels of data in the tables 1-2 and manipulate the data using table functions?

  For example,.

  I want to collect 100 from index100 between channel 0 and their average. I want to take 50 samples from the channel 50 1 index and double each element.

  Thank you for your help.

  Bing@NCL

  Hey Bing.

  You can perform operations on different channels in the 2D table using the table to index. This will allow you to choose the channel to operate on, then you can perform the operation inside a loop on each element. In the included code snippet, I used a shift register to find the total cumulative values in channel 0 and then divided by the number of samples.

  I recommend you read some tutorials LabVIEW and bases of knowledge on topics that are related to yours. These could help a lot.

  I hope that my suggestions help,

  Chris

• How to build a table using incoming data stream?

  I'm programming in VBAI but use LV as my Interface of Inspection. The VBAI program will go into a finite loop (x 1000) and the digital indicator with dbl vaule of food in front of the LV Panel if the value double is in order.

  In LV, how to build a table (index 0-999) with this stream?

  
  

• build the table when values change at run time

  Hi all

  I have a continuous stream of frequencies that continue to change during execution. I need to make a table of these values. I use the array build function. This option stores the first value only and the order of the day replaces the stored rather than settle down after that. I was going through the examples of labview and I think that by using the shift register can somehow solve this problem. However after an hour of futile play with lag, while loop records and build blocks table that I decided to post on this problem. I would like if someone can delete my concepts as well as a solution. The conceptual linkage is for what the first value to maintains have replaced. If I use the table of generation block the values that come should then fill the following vacant location logically. Instead, it replaces one only.

  You are right that I have simply the case that I warned the first sentence.

  Other methods require a certain amount of planning on the structure of data-handling. It is suggested at least...

  A better approach would be something like a circular buffer where you initialize an array of the desired size (for example 10000 items) and then start to replace the items. You can use the iterator of the loop you have to 'reduce' using quotient & reminder (which is the 'modulo' mathematical operation).

  hope this helps,

  Norbert

• How to build a table in a master/slave relationship?

  Hello NOR community,

  I can't build a table in a master/slave relationship. I want two paintings to be built for a fixed amount of iterations, once press the 'pressurization '. (This data acquisition would occur only once per program). I am new to Labview so I apologize in advance for my layout disorder.

  I want the slave program to create two tables and analyse the slope of pressurization to arrive at the same time as the master's program and the master program to continue to acquire data of pressure.

  Master slave relationship is even necessary here? How to pass a variable (pressure main once a loop without getting stuck in a nested loop situation?

  Here is a small example, just to show an idea (many things is not optimal in this example!). Based on your VI you have attached, you miss a lot of basic concepts of LabVIEW, you go through online training.

  

• Build a table 1 d of sequential data for analysis

  I have an executable that needs to cycle at least 10 times and then check to see if the last three load average values lower than 5%. If so, I can cancel the executable, but otherwise I have to keep cycling until this is true. As it is now my executable is not fully implemented for this last requirement because I'm stumbling over how to build my data table. I tried a few methods different but all keep changing one value with one another, and I'm not sure how to implement some of the loop I saw here in similar cases. I have now so I can build a table once my iterative loop is finished, but I wish it were on the fly and re-enter the cyling process if necessary.

  I would greatly appreciate any help someone who is actually competent could provide. I have attached the code (version 8.5).

  Let's try this one.

  In the table of construction (with the concantinate mode on...) new data are added to the table first, not the last.

  The table is based and as it builds, the first (latest additions) three elements are averaged and then checked against a constraint of difference you set on the top of the screen.

  Sorry for the first code... I have yet to understand all these things of table.

  It works as expected.

• How can I write time to build the table in just a few seconds?

  Hello world

  I am able to use "elapsed time" to send a time stamp to "build the table" using the output of 'elapsed time to text.  But after 59 seconds, it gives then a minute.  In the excel file, it is as follows:

  0 00:00:59

  0 00:01:00

  0 00:01:01

  I want to continue to 60, 61 seconds and so fourth.  When I try to connect to an another Subvi, it gives me a connection error.  Any help would be greatly appreciated?

  Thank you

  Ferriol

  I guess that's the Express VI, you can use the output of the time elapsed (s) instead of the number of seconds passed.  If you want a string, use the Format String VI, or build an array of DBL to add to the rest of your data.

• How to build the table with all the combinations of a source table?

  Hello

  I have a 2D array that contains the list of the power user-defined settings. The number of PSs (table rows) is not fixed. For example - 3 PSs:

  Stage of Min Max name

  PS1 3.0 3.6 0.3

  PS2 0.9 1.2 0.1

  PS3 1.7 1.9 0.1

  I need to build, from this list, a table of all the combinations as below:

  PS1 PS2 PS3

  3.0 0.9 1.7

  3.0 0.9 1.8

  3.0 0.9 1.9

  3.0 1.0 1.7

  3.0 1.0 1.8

  3.0 1.0 1.9

  3.0 1.1 1.7

  3.0 1.1 1.8

  3.0 1.1 1.9

  3.0 1.2-1.7

  3.0 1.2-1.8

  3.0 1.2-1.9

  3.3 0.9 1.7

  3.3 0.9 1.8

  3.3 0.9 1.9

  3.3 1.0 1.7

  3.3 1.0 1.8

  3.3 1.0 1.9

  3.3 1.1 1.7

  3.3 1.1 1.8

  3.3 1.1 1.9

  3.3 1.2 1.7

  3.3 1.2 1.8

  3.3 1.2 1.9

  3.6 0.9 1.7

  3.6 0.9 1.8

  3.6 0.9 1.9

  3.6 1.0 1.7

  3.6 1.0 1.8

  3.6 1.0 1.9

  3.6 1.1 1.7

  3.6 1.8 1.1

  3.6 1.1 1.9

  3.6 1.2 1.7

  3.6 1.2 1.8

  3.6 1.2 1.9

  How to build this table programmatically?

  (Note also that the number of rows in the source table is not fixed).

  Thanks in advance!

  Hi Berezka,

  using a magic of automatic indexing:

  

• Build the table to 2 dimensions to plot a graph from UIMessages

  Hello guys,.

  I need some advice, the problem I have is that I want to pass an array [0 5] numbers to my throwugh of custom UI UIMessage to plot a graph with these data in the same grapgh (see the behavior of the 6 signals on the same graph), but so far I could only pass a value and see only a signal in the graph.

  Is there a way to pass the french table UIMessage using the activeXDataParam? Or may be otherwise?

  Thanks for your comments.

  Eder

  I threw together a simple example in TS 2014 and 2014 LV.  I think it does what you want.  Simply run the main vi in the project and select the random sequence file Array.

  In addition, attached is a photo of my UserMessage vi.

  Hope this helps,

• How to build a table of clusters?

  I am building a mapping application room of the robot, Mindstorms NXT using LabVIEW for LEGO MINDSTORMS.

  The VI attached shows the initial computer segment.  The IR sensor is driven by stepper motor, and the range and Angle of the measures are carried out at intervals of 1 degree.  Data coordinating cylindrical (range, Angle) are then converted into Cartesian coordinates (X, Y), and it is my desire to collect each (X, Y, Angle) in a cluster, and then create a table of cluster to give me a file that will be transmitted through Bluetooth, the NXT to the computer where it will be displayed.

  On the fron Panel, I created a cluster 3 of the housing and on the block diagram, I created a table with a data type of cluster 3 pins and the array index wired to the loop index.  However, I get erroes everytime that I plug the cluster and the big picture.  My intention is that the table will index every cycle of the While loop.  What I am doing wrong?

  Thank you once again, Ethan (or appear to have been applied permanently to my case).  Anyone who purchases of LabVIEW for LEGO MINDSTORMS has too much trouble I feel?  Why the product is provided with no step by step user documentation?

• build the table by concatenating berries 2

  Greetings,

  I have the need to combine tables 1 d (Qty 2) to TestStand for the first time each. They both will always be the same size. I would build by concatenating.

  Table 1 (String): some number 1, some number2, some Number3

  Table 2 (string): string description1, description2 string, string description3

  Output array: some number 1 string description1, some number 2 string description2, some Number3 string description3 (so it would be total 3 items)

  Thanks in advance for any help.

  Chazzzmd

  Hello

  You can concatenate 2 strings in TestStand using the operator ' + '.

  Example:

  Locals.Output = Locals.String1 + "" + Locals.String2

  Concatenate individual pieces of the string into arrays of strings, an easy approach would be to use a loop structure to browse table and concatenate all of them. Please find below a sequence file simple (I created it in 2010 TestStand) it does using the "For Each" as well as "Looping" property loop structure within the parameters of the step. I hope this helps you.

• Build a table from an array

  Hello

  I have this table 1 d of large size (~ 20000 entries), and I'm building a small array of time of 20 samples of each and find its min and max values.

  Such as the small table goes from i to i + 19 entries in the big table.

  So far, I think I've managed to build the small table every time, but do not change the min and max values with each "new" table, I don't know what could be the problem.

  It is on the lower part of the atteached vi, the upper part of the Xsub(i+1)-Xsub (i) vi and works very well.

  Any suggestion?

  Thank you

  
  

• Build a table of a loop for.

  Hi all

  I have a vi that reads from a file and manipulates data using the loop. I'm taking each element and multiplying by a constant and convert it to I32. I would build to a new array with the new values. I have attached the vi and a sample data file to read.

  Please suggest if there are the best ways to do this.

  Thank you.

  You can multiply with the constant table and use table instead of multiply with each item.

• How can I build a table using two digital controls and a button? Whenever I press the button, a column of 2 lines (digital orders) should be created.

  I tried several ways to date.

  I know that I can use the building to create a table of two numbers but I am not able to create a 2d in this way

  I also tried to use Replace subset of table, but still it won't work.

  I know that I have to use a table that has the index of the column starting with 0, so whenever I press the button of the column index incriments by 1 so the next column will change but I am not able to create this.

  You are the authority on what a Altenbach! He writes, I just did to make it work. Don't really consider this. Here's a modified version for the OP to use should he like: