relative times of waveform

Similar Questions

• Reset relative time of graphic waveform

  Hi all

  I created a table of wavefrom which starts from a relative time of 00:00:00 at the start of the vi and visualize that the waveform versus time since the start of the vi.

  I made this using an example that I found in the forums or by subtracting right now relative to the relative time of the waveform, as shown in the attached diagram

  When I stop the vi and start it again normally it starts from scratch and so on.

  the problem I want to the table in order to start from scratch each amount fixed time (ex: 50 seconds) and does not need to stop the vi and restart it in order to start from scratch back!

  I thought a lot about how proceed for many and I tried many things but I could not, have an idea on how to do?

  I feel that the solution will be simple to many people, but please forgive me coz I'm new to labview and its my first project with her

  Thanks in advance,

  Concerning

  Shady

  shadyman says:

  Ben

  First of all thanks a lot for your answer.

  I just that explain how can I replace this tunnel with a shift register, where the sr will be data, coz the 'Get current date and time' is in fact placed out of the loop, also how I can change this value to a structure of housing, I'll put the 'get date and time' in a loop or in a business structure? coz I actually tried in ways that looks like that, but it did not work.

  I would appreciate a lot if you showed me what you mean by a schema or on the actuall vi that I fixed to the Terminal.

  Thanks in advance

  Concerning

  Shady

  I reserve this type of service to my paying customers.

  I would turn around and invite YOU to post a picture of what you have tried and let us comment based on your efforts.

  I'll help you get started with two suugestions and a question.

  (1) you can click the tunnel entry and select 'replace with shift register.

  (2) If you look at your code in execution, highlighting mode, you can see data comes and goes when.

  Now for your question!

  After I look at the code to run where it will take another "Get time" node should be located to obtain a new value, WHILE the loop is running?

  As I said, post advise images of what you're trying to do and offer us on this basis.

  Ben

• Insert the scale of relative time in Visual c# 08

  I am writing an application using Visual Studio 08 with measurement studio.

  I want to use the relative time scale on my X axis

  I tried to use

  Graph. XAxes [0]. MajorDivisions.LabelFormat = new NationalInstruments.UI.FormatString (NationalInstruments.UI.FormatStringMode.DateTime, ' % <%H:%M:%S> t "" ");

  Does not work.

  Can someone help me with this?

  Hello Al B,

  I figure out the solution to the question

  using hour: mm:s or H:mm:s, both work.

  Could you elaborate what difference should normally be the '%'?

• Conversion of a relative time counter

  Hello!  I have a pretty simple question, if someone has a moment.  I have a while loop with a 1000ms wait inside, as well as some other stuff that is not relevant to the question.  Since my incrementer essentially account seconds due to the presence of the 1000ms wait, I would take the built in incrementer (i) and use it to display the relative time elapsed since the while loop began.  This loop will run for 3 hours, so I would like to display in hh: mmS format.  So basically, I'm looking for a way to convert the meter in a time value.  Any thoughts?  I know that the wait function is not exactly accurate, but that's ok.  I don't need to be 100% accurate in this vi.  Just a rough estimate will be fine. Looks like there should be a relatively simple way to do this, but I can't understand it...  Thank you!!

  Well, I just noticed a difference between 8.5 and 8.6. With 8.6, I put the relative time display format. Other that that, I don't know what would cause it to run backwards. Your postal code.

• Convert relative time in absolute

  Hello

  I want to convert my string of relative time in a channel of absolute time. How this could be done?

  My relative time string has the format 01/01/00 12:29:17.9120 depending on whether I just want to generate the digital absolute time string.

  Thank you

  Never mind found.

  All I had to do was to change the display format for the time string in the menu time to Numeric property.

• How can I get the string value displayed on a digital control defined for the relative time.

  I have a digital potentiometer to display relative time in increments of 30 minutes.

  I want to record the value displayed on the control string.  Unfortunately, when I use the "convert to decimal string.vi" number, the resulting string is just the value in seconds.

  How can I get the value as a string? (for example 01:30 for an hour and thirty minutes)

  Thank you

  Sean

  Hi Sean.C!

  M_Peeker's suggestion is a good thing.  A stage that could clarify things is that you must set the % t <%H:%M> format string entry.

  < br / > Kristen:.

• Cannot set control schedule relative time

  Hi all

  I'm pretty new to LabVIEW, and I'm trying to set a time stamp time related. I put the control on the form, and then right-click and choose the display format. I have chosen Date unused, advanced editing. The control has a box with this in it:

  % <%H:%M:%S> T

  after I change the T t a bit big, the valid indicator lights in red. What am I doing wrong?

  Thank you, < br / > Simon

  The timestamp command allows only to absolute time format. You can use a normal digital for relative time (which can also display absolute time, but not vice versa).

• Relative time

  Hi people,
  
  I have a time stamp for events like a "changetime" column in a table. In my iReport, I would like to call 'changetime' as a relative time, like "20 seconds ago", "5 minutes ago" or "there are 40 days". How can I do this for an iReport?
  
  Thank you
  
  Me

  I would like to call 'changetime' as a relative time, like "20 seconds ago", "5 minutes ago" or "there are 40 days". How can I do this for an iReport?

  There is a predefined for this by their SUMMIT format mask. Should be the last option in the number/Date Format popup LOV in column definition properties.

  If the changetime is actually a column of type TIMESTAMP , then this might not work, so convert the value of the column in the query to a DATE:

  cast(changetime as date)
  

  The actual function used for this is apex_util.get_since(p_date date) return VARCHAR2 type if you want to experiment, but using the number/Date Format would be the preferred approach.

  (Please update your forum profile with a handle better than "user10225290")

• get the time of waveform - increase accuracy?

  Hi I am trying to measure a voltage and take the voltage and time to specific blood pressure and place everything in a pure and simple to read the file.  I had success with the foregoing, however, when we look at the data, the timestamps are not precise enough.  It's mapped data that appear to show only the 1 significant digit, and I need a lot more specific than that.

  Is it possible to use the "get Waveform time Array.vi ' which will appear more precision when obtaining these components?

  Version is 8.6

  For those who are not idiots and care to know the solution, the drafting of a worksheet, Excel truncates data.  I don't know why the data has been lost, but there is no way to recover it in Excel.  In my case, the resolution of valuable time has been lost.  However, writes to a text file can address this problem.

• Business Structure - timer / controlled waveform

  Hello world

  I am building a waveform of controlled time/switch. I have three different parts of waveform to 8192 samples each. I have a case of Structure inside the While loop.

  Structure of the case must have the following properties:

  -1st line (from above) on the output until what you press Start. This is the first part of waveform (normal state of the signal) so I can write these data several times.

  -When you press Start, the current examples are written after that write data of 2nd line exactly once (it's a transitional part of waveform)

  -end of the transient wave, write the fixed part of the signal (3rd line)

  - and finally, return to the 1st line of entry.

  Switch box must be done after prior data wrote because I need to synchronize the start of a signal which ends on the other.

  Any help would be greatly appreciated.

  Thomas,

  I did something like this before.  I've handled by putting the waveforme write and play in a loop (with a case defining structure that array to write to the data acquisition card).  In this way, if there is no action from the user, a default waveform is always written on the card and played.  When the user presses a button, a Boolean value has triggered another round of case (you will use the Boolean value to trigger a simple state machine that determines what table to write).  The final value of the state machine to go back to your original state.

  Example:

  State 00: Normal default waveform running

  State 01: User Action to start-> tracks 'line 2'-> change boolean to go to State 10

  State 10: series 'line 3'-> change to 00 status boolean

  State 11: {unused condition}

  The only part that this should affect is the writing of the real array to the data acquisition card (i.e. keep the rest of the code out of the apparatus of State, but within the main loop)

  I hope this helps,

  Sean

• How to take the measurement time of waveform.

  Hello

  I faked a square signal I need to measure the period of time without interruption... automatic measurement of the time for one cycle...

  For example, I have square wave, and I need to measure the period of time and display it without attributing all outside sliders... I need automatic measurement of it...

  is that what you want?

  (I just added the period detect your VI)

• Relative time with the Parent and child Comps

  Hi, is it possible to see the time a child-comp has in her own scenario, and in his own timeline window see what time there in a certain-comps-chronology kinship?

  I tried several views, but could not display 2 different comps and / or move the time slider to a model he moves in the other computer too...

  Kind regards

  Frank

  Well, that said Rick is the first to check, but by default, this option is enabled, so I wonder... Your compositions are in fact really nested or y at - it something to do that we do not know? As well use the parameters of the model and adjust the com time beginning when necessary. Desp you can always use simple expressions for anotehr comp time and attach it to the effect numbers...

  Mylenium

• Waveform table do not see the time correctly

  Hello

  I am trying to represent the time vs. keithley multimeter voltage using a waveform chart. The voltage is recorded properly, however, the time does not seem to match. It shows approximately 10 times higher seconds. See the attached VI where I also used alternatively a XY Chart. I would like the time to be displayed in the waveform graph as in this chart XY.

  In addition, in the XY graph, I had to put up one zero time to obtain the relative time. Is there a simpler way to do rather than use this trick?

  Thank you.

  
  

• Graphical waveform time stamp

  Hello

  I worked with the tables of waveform to display my data. I am faced with the question about the display of timestamps in my table of waveform. No matter what I do, I get the timestamps with ref to the year 1904, I selected time settings system in properties (with relative times) but I am unable to get the latest timestamps.

  Please help me in this regard.

  Thank you.

  What kind of data you pass the array? Only one type of waveform has the timestamp information. You must use or specify the offset and a multiplier in order to obtain information in real time. Here are the properties that must be set explicitly by obtaining the time system and the dt of your acquisition.

• Get a time indicator Relative to display ZERO

  Greetings,

  I'm having a hard time finding solid answers on indicators how digital with a relative time display mode work.  I was looking for help online, I searched the forums and I googled like crazy.  No simple answer to what seems not like a simple problem.

  I have a digital indicator of DBL an hour Relative value of display mode. If I put zero value on my pattern, I find myself with 19:00 on my front.  If the indicator is time RELATIVE, a value of ZERO seconds shouldn't be at 00:00:00?  If I set the value on the front panel to zero, then create a constant, it indicates that the value is-68400.  What is the problem?

  Thanks in advance!

  TST wrote:
  Are you sure you are using a legitimate version? There was a bug in one of the recent versions beta (he could have 8.5 or 8.5.1) where absolute time and relative time in this dialog box values were reversed, but I don't think it should be in one of the published versions. Try selecting the absolute time instead and see if you get the relative time.

  It is a fully legitimate version, activated and registered.  This was installed through the 8.5 DVD that we got with our Developer Suite subscription.

  But I think you might be onto something here.  I've linked the constants on my diagram of blocks, is gone to the display Format, time chosen "Relative" and got what looked like a COMPLETE TIMESTAMP with AM/PM and a year.  I went to 'Absolute time' and I arrived at 00:00.

  I have attached a small 'table', I did various settings.  If it's a bug, it certainly seems like he does in a release build.