Table of horodateurs multiple waveform

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• Multiple waveform graph, history of waveform card

  Hello to all my colleagues.

  I have problem with software of my purchase. I create software for the acquisition of 40 signals. I need to view and save these signals. I measure these signals with different frequencies (this depends on the user's selection), but the lowest frequency is 500 Hz and the highest is 2 000 Hz. Because I see a different size of X scale (5 sec - 60 dry), I decimate these signals for display and display only 100 samples per second.

  I think that my problem is related to a very long history of waveform graph. When I display all signals in a single diagram, permanently signals are not displayed and the table is larger than the correct size of X-scale, means that the courses of the waveform graph freeze. I think the problem is connected only with display and no acquisition because I tried to check the measured data and there isn't any problem.

  You have one any opinion how can I solve my problem?

  Please, help me, because I'm out of ideas.

  Thak you.

  Here's my VI.

  Double post,

  Please find the thread here:

  http://forums.NI.com/T5/LabVIEW/multiple-waveform-chart-history-of-waveform-charts/m-p/1762160

  Best regards:

  Tamas Szekely

  Technical sales engineer

• Code example for single asynchronous reading of multiple waveforms

  Hello

  I looked around but have not been able to find the code example for single asynchronous reading of multiple waveforms.  Could someone point me in the right direction?

  Thank you

  Dale

  Hi Dale,

  Have you looked at the code using .NET Framework DAQmx example? It shows this code:

  class DAQmxAsyncRead
  {
  private AnalogSingleChannelReader reader = null;

  public DAQmxAsyncRead (task t)
  {
  Create the drive
  Reader = new AnalogSingleChannelReader (t.Stream);
  Acquire 100 samples
  Handful of IAsyncResult = reader. BeginReadMultiSample (100, New AsyncCallback (OnDataReady), null);
  }

  Public Sub OnDataReady (IAsyncResult i)
  {
  Recover data that has been read.
  At this point, all that occurred during the asynchronous read exceptions are thrown
  Double data = reader. EndReadMultiSample (i);

  You can call the method BeginReadMultiSample here once again
  }
  }

  In addition, this article: http://digital.ni.com/public.nsf/allkb/485201B647950BF886257537006CEB89?OpenDocument talk about different causes of the reserved resource error.

  Kind regards

  Alexandra Valiton

• How can I save a table 1 d of waveforms in excel

  How can I save a table 1 d of waveforms in excel. The picture is from a vi that reads and graphic a wav. file

  Hi Navident,

  Before you create the excel worksheet do not forget, you cannot configure Excel to exceed the limit of 65 536 rows and 256 columns in Microsoft Office Excel 2003. I hope that the HRT help for you

  .

  

  Siva

• waveform compared with table 1 d of waveform for a Subvi connection

  Hello

  I have a Subvi I change so it can accept an entry of type of waveform (it used to take a double 2D array). I created the type indicator 'waveform' on the front of the Subvi and connected according to terminal diagram. However, the block of acquisition DAQmx I need to connect (from the parent company VI) generates a table 1 d of waveform, and that's why it the two are not compatible. Can someone tell me please how to make the indicator in a table 1 d the type of waveform, rather than just a type of waveform?

  Thank you
  Claire.

  Place a container on the front table, drop the control of waveform inside and connect to the connector pane. See how far you get.

• How to get the individual history of the multiple waveform graph plot

  I have a table of waveform with several plots, which is a cluster as input.

  I want to calculate the average of each of these plots. With simple concession of waveform graph, all I had to do is to use the property in the history of the graph node and pass the history to the generation averaged vi. With the array of multiple locations, I am unable to get the history of each parcel.

  The property of the history of the land multi card node is an array of custers, not quite what I need to calculate the average.

  How to me history of individual plots?

  Thank you.

  unbundle just your datapoints inside a loop like this

  

• How to use table 1 d of waveform in the Matlab Script

  I use Lavbiew to make the classification of Vibration signal.

  The first problem I encountered is the form of incorrect data.

  The output signals are 1 d arrary of waveform. I don't know how to use the Matlab Script.

  is someone can help me with this?

  I really appreciate your help.

  Hey beauzhang,

  I hope that you are well today. It certainly seems that we lack in some problems with the different sources and data types of wells. LVM VI Express load you have emerged from a table of waveforms. So we would need to do a few things. First of all, we need to ignore the range of interests, and we must get the waveform data elements table.

  I have provided an example of how we can extract the waveform in position 0 of the table and then pass the array of data values to the script node Y. I have configured the entry of the data of a table 1 d Reals node (by adding an entry and then the right of entry and select choose data type.)

  If you are interested in getting the values Y and build the table like you did in the script, you need to implement a different subset of table and looping mechanism in LabVIEW code to move each item to the script individually. However, I would recommend working with the entry level instead.

  

  I hope this helps!

• Multiple waveform graphs do not simultaneously view data

  Hello

  I use a box USB-6009 to acquire three analog input voltage signals simultaneously. I want two plot the voltage wrt time signals, while the third signal, I want to extract the frequency and then draw the wrt time frequency. I want the three of us graphic waveform having a category axis in units of seconds from zero seconds. My diagram of block VI is below:

  

  When I run the VI, I get some problems. First, the frequency table is not plotted all the data, and although I am happy, time begins and reset it's count in tenths of seconds rather than in seconds.

  With the voltage 1 and 2 maps, the voltage is read correctly, but the x axis are in terms of date and instead of seconds. The front of the VI is below:

  

  I tried to run the VI with only the third signal voltage being played and the table of wave shape of the plots the frequency perfectly. The Panel diagram and the block before lower is to:

  

  Could someone tell what I'm doing wrong in the first VI?

  1. you must use the version of waveform table Mutiple multi-channel DAQmx Read Points.  Then, you don't have to accumulate the waveforms yourself.

  2 tables index is 0-based.  Thus, the filrst of the table element is actually 0, not 1.

• Pull graphics individual of a multiple waveform graph?

  Hi all, is there a way to the analysis of individual graphics of a waveform based on a description given?  I know that the wave doesn't than the Y, t0 and attributes t, but there must be a way to do this.

  The user enters a group of data by channel.  I want to be able to do is isolate one graph of the waveform based on the tag name of the channel and show this on a separate chart.

  I've attached screenshots taken from view of the code where the plots are generated and the center of user input.

  I would appreciate help.  Thank you!

  LabVIEW 2012

  Windows 7 64 bit

  Hello

  You can do it. When you get the name of the attribute (as in my first attachment), you can compare it with the name of the desired tag, using the functions in the range of comparison.

  If your match is found, then a case structure and write the waveform in a chart.

  Otherwise, proceed to the waveform through a shift register and write in the graph.

  I have attached a VI in LV 2010.

• Synchronize multiple waveform charts reset

  My main VI has several radical waveform graph, based on the model of continuous measurement and logging. I want to be able to change x axis interval (switch between 10 seconds of data and 3 seconds of data)

  I did by changing the scale X Beach zero min and max to the appropriate sample size and clear history. While this works for each graph, they always ended up timing instead.

  At first I thought that this is because I put it in a ub VI. But all moving in you main vi does not change the behavior.

  Any ideas? Thank you.

  Those who all have to run sequentially in the UI thread well so there is no way to make "Simultaineuosly" HOWEVER, if you the bookends these nodes of property with an Involk of the David FP method updates (True then False) you will see much more what you'd expect.

  Alignment tighter to the 'clear' Histoys would also have to split your p-nodes so do all of them at first and then change all the scales.

• Conversion table, EDD, manage multiple formats table

  Hello! I'm quite new to structured framemaker and I plan to migrate legacy documentation not structured in XML format. In documentation existing as well as ordinary tables I Note and warning messages in a table:

  

  The icon is a paragraph with a frame higher TFP. format and table shading

  When I generate a conversion table, framemaker creates that one set of items for the table cells, rows, etc. I'm a little confused about how to deal with these tables in the table of conversion and ESD file so that I can save the converted to XML file, then load it and get the same table format? I would appreciate any advice. Thank you!

  Elektroneg,

  It is always tempting to start a new project structured FM by converting existing documents. I recommend, however, that, until you are familiar with the structure, you start by building a structured model and ESD and take a good start on them debugging with the test data. Once you have created a catalog of the element, it will give you a target for a table of conversion and implementation of an XML application.

  A table structured FM must have the elements on each side of the table: the entire table, any title of table, any position table, the body of the table, a table leg, all ranks, and each cell. Each of these item types can be used for one purpose. You cannot, for example, have a general element called TableSection which is used for the header, body and foot or an element called title, which is used for the section headings, but also the titles table. However, you can have several elements of each of these types.

  A DSP defines all the elements for the tables and the various components of the table, including the command of no subitem. It can also define an initial table format the format applied when the table is created and the initial models that specify the names of the line items in a topic of table, foot or body, and those of the cells of each type of line. Note that these are the original formats and models of structure only.

  In your case, for example, you can set a table format called Message with the shaded background desired. If the note and Attention messages have different icons, you can define two elements of the array, called Note, and called Attention.  The body of a Note might be called NoteBody, and the only line of a NoteBody might be NoteRow. The two cells in a NoteRow could be called NoteIcon and MessageText and may contain paragraphs which forms have the same name as these elements. Tables of attention would be defined by analogy.

  To generate a table of conversion that structure this content, remember that any table generated by FM conversion is only a starting point. The project creates the FM does not define several the table header, body, foot, line or cell elements. You can change the conversion table to do this. For example, the part of your grade conversion table will be something like:

  Wrap this object or objects	This element of	With this qualifier
  TC: P:NoteIcon

  NoteIcon TC: P:MessageText MessageText TR:NoteIcon, MessageText NoteRow TB:NoteRow NoteBody T:NoteBody NoteTable

  This conversion table fragment defines a table cell that contains a NoteIcon paragraph labeled as a part of NoteIcon, a cell with a paragraph containing the MessageText tag to be a MessageText, a line containing an element tag NoteIcon followed a MessageText marked to be a NoteRow, a table containing a single element tag NoteRow to be a NoteBody , and a table composed only a NoteBody be labeled NoteTable.

  -Lynne

• Can system table space cause multiple data files in several places?

  Hi experts,

  Our current system has a partition to keep the system tablespace data files, but I assumed that the partition is wrongly estimated and the size was maintained only 2 GB. Now the partition's got full and it seems no way to increase the partition from the OS. The only option I have is to create the new data for system tablespace file in another free partition. Is this possible? I have to consider all things important before doing this? Also can I create new data with the regular create command file or need to do something special for system tablespace?

  Thanks in advance

  Yes, you can create two data files for system tablespace into two partitions.

  To reduce the space in the system tablespace - you should check what are segments that occupy the space in the system tablespace.

  To get the examples if you have the Audit DB - then you can move the table to tablespace someother depending on availability.

• Number of page of text in a table cell in the table that spans multiple pages.

  I have a very large catalog that I need to extract parts, price, and number of page numbers to.  The tables can be long from 1 to 35 pages.  I can locate text that I need to find in the table, but the page of the parent table is the table page begins.  Not the page the page the cell is in.  I need to find the page number of that particular cell.

  Hello

  I have attached the script to find the exact page of the object.

  Use it for your condition.

  
  

  Kind regards

  River. P

• Graphical waveform reference conflict with table 2D?

  Hello world

  I have a problem (I hope so easy?) with the joint 2.vi Untiltted... I need to wire a reference (with the chart "MVC and Stim") to the Sub - VI X axis Curs table under so I get the x-axis positions the cursor over the chart MVC and Stim... When this chart is a 1 d array, it works fine (graph at the bottom should graphic data between the sliders)... But I change the MVC and graphic stem in a 2D array that draws multiple waveforms graph Ref do not connect to the Subvi?

  Any suggestions? I'm on a tight schedule, and it's killing me slowly...

  Kind regards

  Jack

  Hello

  I do not have chekced your screws I did not LabVIEW on my pc at the moment. I hope that the code is LV 2010 or below. If this isn't the case, please send the code in a version compatible with LV 2010.

  However, a few questions:

  What is your Ref entry selected to include the data type? You create the reference control once again inside your sub vi when you changed from 1 d in table 2D graphics?

  If Yes, suggest to the two qus, try removing the data type "include". This can cause problems in the future. Otherwise, you must re-create your sub vi entry ref control again.

  one way is, just transfer the reference on the front of the vi that has graphics for the sub vi, use application of the nodes to get the name of the control and the reference in the Panel, check your "MVC" and "Stim" among the control names, get the control reference. This will save you the dotted arrows.

• Waveform to the Multiplication of matrices

  Hi all.

  I have a DAQ - MX file that brings a table 1 d of waveforms. This will be either six, seven or eight waveforms (based on the previous settings). Regardless of how many there are, I want to take the first six of these waveforms and a matrix multiplication.

  In other words, if A is my 6 x 1 read voltages in the acquisition of data, I want to multiply this matrix by B, a 6 x 6 of constants.

  Is this possible?

  Thank you

  James

  Then do what I said in message 3.

  You started confusing things when you started talking on the application to the constants to the entire waveform.  It is impossible to make a 6 x 6 times 6 x 1 matrix multiplcation if you talk about all the points in a wave form which will have more than 6 points.

  Looking at your last equation, is the vector of 6 x 1 represents a single element in time of 6 waveforms?  If so, use the first part of what I said in message 3 to convert your table 1 d of waveforms in a 2D array.  Then iterate over the column of table 2D 1 or 1 row at the time (dimension whatever gives you the unique element of 6 different channels).  You may be able to auto-indice according to the direction.  Use this table 1 d of 6 item to your multiplication of matrix with your matrix 6 x 6.