Time-stamped comments adding in a DDHN file during logging

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• seconds of falling for the time stamp

  I guess someone has had this problem before, but do not see in the forum anywhere.  I add a timestamp in a file so I used the 'get time in seconds' and connected to a "convert to DBL.  Then this son in an indicator on the façade and in the Express VI "write to a measurement file.

  The indicator shows the time stamp very well, but in the file it puts it in scientific notation and cut the last 4 digits and fractions of a second.  Timestamping writes to the file every 5 seconds, so it is important to have the rest of the time stamp included.  I tried using probes on wires to see where things are weird but I get the same value truncated in the wire before and after the flag.  I thought it had something to do with the VI Express first, given that the indicator is fine, but with her truncated in the thread, it seems that the Express VI is indeed record exactly what is given to... but then again the indicator... you can see that I've been running in circles in this!  Someone knows the reason why he does this and a possible solution?

  Thank you very much!

  
  

• Is it possible to add a time stamp to a server to JavaScript code?

  I could add a time stamp to a server using the certificate > timestamp. Does anyone know if it is possible to write a JavaScript script that will check the time stamp to see if the pdf file has expired? Thank you

  You cannot use JavaScript to check the expiry, because it can be turned off in a few seconds.

• Time stamped Sreadsheet

  Hello

  I managed to generate timestamped excel file that works very well only for logging only. If I do multilpe logs, my program does not create a new file. So is - can someone take a look at my file and help out me why is - it not create each time new file during logging affects

  Thank you

  Hi mimran,.

  Glad to hear you it runs.

  You have wired a constant false both your loop that's why it never stops of your loops.

  And your code will be stuck inside the while loop, so a new file will be generated not when you log in for the 2nd time.

  I used a case event, so every time that your Boolean is true it raises an event that will change your name of file correctly. I also you external wired low loop to your stop button and used a local variable to stop up all looped, this way both loops will stop when you press the stop button.

  What did guys NOR suggested otherwise?

  Concerning

  Dimitrios

• How to add a time stamp to a PDM file

  I need to add a time stamp to my PDM file.  Currently, I take an array of doubles, their conversion to a type of dynamic data, then send to tdms_write.  I have to add a timestamp, but I can't find a way to do it.  I also tried holding the timestamp, converting it into a doube, U64 and I64 and adding that to my table before the dynamic data conversion type, but when I lose precision.  I need to have at least millisecond resolution.  I know that I lose accuracy because the timestamp is two 64-bit values.  top 64-bit are set to seconds since the epoch and lower 64 bit are fractions of a second.  I would even send these two numbers divided in my happy tdms file and conversion at a later date, but can't seem to do it again.  Any help would be appreciated.

  The natural way would be using a waveform.

  You can add your timestamp as two U64 (using cast to array U64) as properties of the channels as data t0.

  Tone

• file lvm recorded with time stamp graphic display

  Hello

  I have headaches display my data with correct timestamp. There are so many methods to save the data. Here, I decided to save it in a text delimited as lvm. a screenshot of my vi segment is attached. I want to use this way rather than other methods is the flexibility it offers. I'll be able to add more data to store that I develop the vi. (So I'm storing data of the DAQ assistant and my calculated values.) I've attached a screenshot of the file I also read.

  I would use another vi to open this file and it draw a chart/graph to show a trend of the acquired data. Can someone pls Advisor mid on which is a better way for mi to do?

  Thank you very much!

  POH

  Hi Malou,

  Sorry for the late reply, I was rushing to complete my project, has not been able to answer.

  Yes, I managed to solve it. In any case, I've used this high rate in the acquisition of data wizard is to allow the acquisition of continuous mode & use a software filter instead of filter material. However writes to the folder this way - write string in .lvm, max is 10 samples/s unless I have use tdm (I'll then everything in the newspaper).

  I was not able to display the correct timestamp was due to the fact that I have does not add to the timestamp of the start time for the timestamp in waveform display. I won't be able to go down to my lab, & my machine have no LabVIEW, so what I do is to extract some parts of my report to share.

  For the part that I used to display the graph (can be seen on the attachment), I deleted the 1st column, which is the time stamp (for display of the spreadsheet), but extract the 1st element - convert timestamp DBL it when I start recording in the DAQ vi (written with the header).

  This excerpt (which could be considered as a group of numbers in the file lvm) and converted to the type timestamp and wired for generating waveform block, providing the start time of the wave.

  Then I replace the use of the chart with graphic, graphic is suitable for data acquired and graphic tracing is better for the time of execution of the data display. now it seems to work fine for me, except for the load time may take some time for larger files.

  Thank you for your participation in this thread!

  See you soon!

  POH

• TDMS of MDF time stamp conversion error / storage date time change

  I fought it for a while, I thought I'd throw it out there...

  Let's say I have a file TDMS which has a channel of labview time stamp and thermocouple 2.

  

  I load in DIADEM, I get this:

  

  Perfect!  But now let's say I want to save the PDM as a MDF file so I can see him in Vector sofa.  I right click and save as MDF, perfect.  I started couch and get this:

  

  The year 2121, yes I take data on a star boat!  It seems to be taking the stamp of date/time storage TDMS as starting point and adding the TC_Timestamp channel.

  If I change the channel of TC_Timestamp to 1, 2, 3, 4, 5, 6, 7 etc... and save as MDF, I get this:

  

  Very close, 2012!   But what I really want is what to show of the time, it was recorded what would be the 10/09/2012.

  The problem is whenever I do like recording, date storage time is updated right now, then the MDF plugin seems to use it as a starting point.

  is it possible to stop this update in TIARA?

  

  Thank you

  Ben

  Hi Ben,

  You got it right that the MDF use written the time of storage to start MDF that is updated by DIAdem when writing time. We are working on this and will return to you, if there is no progress.

  To work around the problem, you can try convert TDMS MDF in LabVIEW storage vis.

  Something like the following, you can write your start time of measurement to the MDF file.

  

  Hope this helps,

  Mavis

• Rough terrain when the data is plotted with time stamp of AM / PM or to the right!

  Hi to all programmers.

  I'm attached Datafile. Can someone tell me how to draw this line! I need all of the data plotted on the right and the x - axis with the date and time stamp.

  I understand that the chart cannot understand that after the time: 12:59:59.999, it's 01:00:00.000 afternoon.

  Thanks to Labview 7.1

  Concerning

  HFZ

  Apart from a code that can be simplified by the use of other functions, what I see, it's that the file you provided does not match the format that expects the VI.

  Other comments:

  • I don't understand why you're going to all the trouble of the evolution of the time string when all what you need to do is:

    

  • All the way at the beginning, use the function of path of the band to get the file name rather than the gymnastics that you're doing.
  • Your time loop must be indexed for auto-loop.
  • I can't quite understand what you're trying to do with all these sliders.

• Script Automator for the DATE and TIME stamped record

  Hi all

  I'm not a scripter, but are in need of a DATE and time-STAMPED folder (or file) I would like to put on my desktop and have updated automatically so that I can use this tool to quickly see if a backup external (or internal) is current. probably I could also use it to quickly find out how /old/ a backup is.

  for now, I do this manually if I want to quickly verify that a backup works by creating a "date named folder" on the desktop - such as '-2016 03 26 "."» so I can quickly see if a backup I just ran ran.

  I have a lot of backups (internal, external, off site, etc.) and it would be super useful for me to have.

  I consider the name of the folder to be customizable (potentially) in case I need to change it, but a good default would be "-YEAR MONTH DAY" so that I could see easily when this backup has been but also I name my files in this way so they can appear in chronological order "."

  is anyone able to help me with something like that or suggest another forum for cross-post this?

  Thank you

  Jon

  Hello

  Create the the ""new folder " action, like this:"

  

  ---------------

  Drag and drop the 'Shell Script' variable in the "name:" field.

  

  --------------

  Double click on the variable in the "name:" field:

  Copy and paste this text in the field 'Script ':

  date "+%Y %m %d"
  

• Acquisition of data high-speed with time stamp

  I am acquiring data at a fairly fast speed (5 to 25 kHz) for a few seconds and then writing in a spreadsheet file. Is there a way to set up so that it displays the time stamp for each data point instead of just the data point number?

  

  Of course. Change the type of data returned by DBL 2D to 1 D wave form. This is doen by clicking on the polymorphic selector or right-click and choose 'select the Type '.

• Time stamp help

  Hello, I did this VI to collect measurements and I would like to record the Date and time of the measurement in the same file, but in a column other than measures. Since I can't send data directly into an Excel file, I am collecting in .txt file and then import it into Excel. Any suggestions will be greatly appreciated. Thank you.

  You can put your data into an array of strings, and then send it to either the 'worksheet for write file' funciton, or pass the array through the 'picture of worksheet' function and then write to a text file. This puts delimiters, such as tabs or commas, that make it easy to write readable Excel files. If you make the technique later, you can either have a time added at the beginning of each entry of data entry, or if it's just for the header information indicating when the tests took place, you can write in the text file, and then add the worksheet formal test given in the file so that it will appear in your text in the form of lines of delimited data file.

• PDM Viewer do not display data with time stamp

  Need help with the timestamp of the data in a PDM file generated by the DAQ Assistant.

  When I use the PDM Viewer, with x the value absolute time scale, the date starts in 1903. If I use Excel to look at the file that the start time is correct (i.e. 2013).

  Bo_Xie, I simplified my VI and now able to display the correct time stamp. Thanks for your time!

• How can I display the time of the data stored in a file using labview?

  How can I display the time of the data stored in a file using labview?

  Hi Matt,

  I think that we will need a little more information as to how you capture the data, what data you capture, etc.

  If you capture a waveform, is to extract the time data waveform which includes the t0 and dt values, so you can understand the time stamp of a specific data point as in the image below.

• Misfortunes of time stamp

  A code I have build to generate and acquire waveform signals and then write them in a text file with the appropriate time stamp is attached. As it is, I've linked only the portion of scripture to the acquired signals (I intend to write then generated signals); However, my time stamps are not written to the sides of my tensions, because I expected to do. I had problems with it (probably because I'm a total novice at this), but would like to have some knowledge of experts in this field. Can someone help me? The code and a dummy test text file are attached. Thank you!

  Hi UARK.

  I just ran your VI with a simulated device and could read in the appropriate data (it was not all constant).  Try opening a panel of Test NI Max to display the data that your device reads in and check if these data are constant.  If so, it's a problem with your hardware rather than your LabVIEW program.  That being said, this issue is quite different from your original post, and I suggest to create a new post on the forum for this quite so that more people see it.

  Thank you

  Myriam D.

  Technical sales engineer

  National Instruments

• How to date and time stamp picture my photo printed folder

  How can I sign up date and time on my impressions from my picture folder?

  How can I sign up date and time on my impressions from my picture folder?

  ==========================================
  The following instructions will prepare photos
  with the EXIF Date/time stamp then you can print
  them.

  FastStone Image Viewer freeware can add
  EXIF Date/time in the face of your photos in a batch.

  (FWIW... it's always a good idea to create a system)
  Restore point before installing software or updates)

  FastStone Image Viewer
  http://www.FastStone.org/FSViewerDetail.htm
  (Windows XP / Vista / 7)

  I suggest that you create a new folder and add
  copies of your photos for experimental purposes.
  If you are unhappy with the result your originals
  will be intact.

  After FastStone is downloaded and installed...
  Open the program and go...

  Tools / open the Batch Conversion / tab Batch convert...

  Check the box... Use of advanced options...

  Advanced Options button / tab text.
  Check the box... Add text...

  (You will need to experiment with the position and the police
  size and color to get the desired result.)
  (the text size will need to be adjusted according to the)
  the size of the photos)

  Open the window drop... "Insert a Variable."
  choose... EXIF Date Time / Date and time...
  (in the white field you should see ($H1)
  Left click... Ok

  On the Batch tab convert... in the left field...
  Left click the square button "select the Source folder.
  Find and select the photos you want to
  Add.

  Left, click on the Add button to move the files to
  the right field.

  Choose an output Format...

  Choose an output folder...

  Click on the button convert...

  It's much easier to do than to explain then
  give it a try before say you "Good Grief... it's too
  a lot of work.