Attach labels for write to measurement file and graphing

I am currently having alot of problems with attaching labels to double type of wires and changing the label attached to the dynamic type of wires. I want the write to measurement file to have the correct headings but the current headings for the columns are displaying untitled or change the heading for the dynamic type of wire. I attached a picture of the program and I would be very grateful if anybody knew how to change these headings.

Try this VI I made. It takes in a Double signal and a string, names your signal, and outputs it as a Dynamic Data.
I used this with the Write to Measurement File without any issues!!!
To name a Dynamic Data Signal, use the Set Dynamic Data Attributes VI found in Express > Signal Manipulation
Hope this helps,
Cheers
Attachments:
Name DBL Signal VI.png ‏59 KB
Name DBL Signal for Measurement File.vi ‏35 KB

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Extending decimal points on timestamp for write to measurement file .vi

Hello Everyone
Currently I am collecting a bunch of Fieldpoint Channels in LabVIEW (about 190) which is a lot of instrumentation. Right now we want to be sure the computer can keep up and read all of the channels every second. To test this theory I want to use the WTMF to get a timestamp for every channel (seems to be the easiest way).
While reading the file I get like 5.68 so two decimal places. I was wondering if there was a way to get a more accurate time reading down to the millisecond. I know this is three places after the decimal point, but I was hoping I could extend this to 5-6 places past the decimal point.
Usually when saving data I use the write to spreadsheet with one time column and can just format the readings through that, but for some reason I cannot figure this out with the WTMF
If there is any input to check these time differences besides doing the above, that would also be appreciated.
Any input would be amazing.
Thanks so much
Tanya

Hi vaib,
as i said already here, http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=332115#M332115 i think you can´t stop the writing process. If you start them, then you have to wait til the vi is ready. To measure the time you can use the "Tick count" function. See the attached picture.
Mike
Message Edited by MikeS81 on 06-17-2008 03:34 PM
Attachments:
Unbenannt1.PNG ‏12 KB

Write to measurement file help

Hi,
I am a beginner. I am working on a VI.
But have some problems that I couldn't solve.
Here is the VI attached, I get on the output the positive and negative peak values which I then write to a mesurement file.
But now I just get my last values of positive and negative peak in the measurement file.
But I there were different values before that last values also. I want to save all the values, or every time that values changes on postive and negative, I would like to save all values to a file.
Would be great if someone can help me with it.
Regards,
Raj
Attachments:
VI_HELP.vi ‏103 KB

If you did the TDMS file your self (not use the express VI). Then you could specify the group to write into and the channels. It sounds like you want to add new channels each time you acquire a set of samples. Look in the example finder (Help->Find Examples) for TDMS Write Triggered Data.vi. It looks like a decent example to get you started.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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Does write to measurement file need a blank file?

Do we need to supply a blank file to write to measurement file? I am supplying a file with some text headers in it to my Write to measurement file, and for some reason it generates Error 100, saying that it is "not a path". I am not sure, if I need to supply a blank file or not. Also, is it possible to get rid of the headers that write to measurement VI itself generates in the file, and supply my own headers instead?
Thanks.

Please stick to your original post, where you are already being helped on this issue.

Where is saved the Preference for "Write XMP IDs to Files on Import"?

Hello,
In a Jsx, I test if the "CreateLayerMarkersFromFootageXMP" is activated in the AE preferences with:
app.preferences.getPrefAsBool( "Metadata", "CreateLayerMarkersFromFootageXMP" );
But I cannot do the same for this one:
"Write XMP IDs to Files on Import", which is also in the Preference Panel, but not saved in the Preference files I think.
Or if it's saved in, where? And how can I check it in ExtendedScript?
Thanks.

It appears that the Metadata section only carries that one pref it seems.
["Metadata"]
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The only other XMP prefs I've found in the AE CC files are:
"Adobe After Effects 12.1 Prefs.txt"
["Metadata"]
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          "Strip project XMP history from saved projects" = 00
["XMP Writing"]
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"Adobe After Effects 12.1 Prefs-indep-general.txt"
["Metadata"]
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System time in Write TO Measurement File

Hi, everyone. I'm Sorin.
I use a DAQ 6210 in Labview 8.2 to aquire some analog data at 1 sec,and i have 2 questions, please:
1. I need to record the data into a file .lvm, so i use "Write TO Measurement File" module with one column of time (X axe). But this time is relative, and i want to be system time instead. Is there any way to resolv that ?
2. Also, in my Waveform Chart i put absolute time because i couldn't find system time, though i need it. How can i change that ? Although, once i played with charts, and i succeeded to see system time, but now i can't. And i'm sure it wasn't complicate.

Hi Sir
I had similar problem. I tried to write to a measurement file with absolute time, instead of relative time here I got.
Also, I want the format to be sth like this 13/09/25 18:16:01.
Could you help me?
Thanks
LabVIEW Measurement
Writer_Version 2
Reader_Version 2
Separator Tab
Decimal_Separator .
Multi_Headings No
X_Columns Multi
Time_Pref Absolute
Operator FriedmanLab
Date 2013/09/25
Time 14:09:10.2151017189025878906
***End_of_Header***
Channels 1
Samples 1
Date 2013/09/25
Time 14:09:10.2151017189025878906
X_Dimension Time
X0 0.0000000000000000E+0
Delta_X 1.000000
***End_of_Header***
X_Value Untitled Comment
0.000000 21.787387 Enter a description
10.000572 21.847446 Enter a description
20.001144 21.841562 Enter a description
30.000716 21.908628 Enter a description
40.001288 21.902826 Enter a description
50.004860 21.963112 Enter a description
60.035434 21.967730 Enter a description
70.031005 21.968933 Enter a description
80.011576 22.039718 Enter a description
90.000148 22.065121 Enter a description
wei shen
Attachments:
Untitled.jpg ‏74 KB

Error trying to write to a measurement file and then send via gmail.vi

So as the title says, I have a VI which is writing to a tdms file, and I want to send the file by gmail once the program has completed it's run. I downloaded gmail.vi and am integrating it into my existing code. Both my original code and the gmail VI work fine on their own, but when I try to have the combined VI send the data file by email, I get the error message that I've attached.
Basically, it seems like the .tdms data file is in use by the measurement code, and I need to know how to free it up so that the gmail code can attach and send it.
I've attached the main code as well as my modified gmail VI, so hopefully someone can take a look at tell me what I'm missing.
Any help is much appreciate!
Attachments:
Error.PNG ‏19 KB
PID Controller - Cleaned Up.vi ‏239 KB
Email Alert.vi ‏19 KB

While I can't view all of your code because it is missing several SubVIs, I have a good idea of what you are trying to do. I believe the culprit is the "Write to measurement file" express VI. Near as I can tell the original reference to the TDMS file is being held open inside the express VI. Here's a good general rule for using Express VI's: when you see them, RUN THE OTHER WAY! I say because there is almost always a significant amount of code in there that is unnecessary, In this case, you simply need the Open TDMS file, Write to TDMS, Close file functions; you do not need all of the extra code that is in the express VI's.
<edit> P.S. I hope the username/password in Email alert.vi is a placeholder otherwise you just gave every idiot with access to LabVIEW your username and password to the account.
Charles Chickering
Architecture is art with rules.
...and the rules are more like guidelines

When I try to download Firefox for Windows, it unzips the file and says it cannot find 7-Zip file and stops download

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WebLogic writes to a text file and an applet reads the text file

Hi there,
I need some help here!
I have an applet that needs to read from a text file:
final URL prtDataURL = new URL("http://" + getCodeBase().getHost() + ":" + getCodeBase().getPort() + "/ESTC/lib/prtDataFile.txt");
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            is.close();and this is ok.
Now I have the web server (WebLogic) that must write, at regular time intervals, to that file (prtDataFile.txt). The web application writes to the file (which belongs to the application).
I've tried open the file with the File object but since the war file is unexploded I can't get the real path!
I've tried open an url connection,
final URL url = new URL("http://10.191.33.249:16801/ESTC/lib/prtDataFile.txt");
final URLConnection connection = url.openConnection();
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setDoInput(false);
OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
out.write(currentDate + "§" + quantTot + "§" + quantSco + "§" + quantSef + "§" + valTot + "§" + valSco + "§" + valSef);;
out.flush();
out.close();which seems a little stupid since I'm opening an URLConnection to the same place where the application is. Anyway it doesn't work, i.e., it doesn't write to the file but it doesn't gives me any errors or exceptions.
Is there another way to get this two pieces communicating?
Thanks in advance

I have almost the exact same problem, and I am in the same situation as you are with respects to the language.
I am simply trying to create a file and output some garbage to it but my applet always spits back a security violation. I've tried eliminating the restrictions on the applet runner I use but I still get the error.
My method:
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debug.setLocation( 20, 20 ) ;
debug.setSize( 500, 15 ) ;
add( debug ) ;
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} catch( Exception e )
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Read from csv file and graph at certain interval

Hi,
I've been trying all day to modify a labView program so it reads in data from my csv file to graph temperatures from 4 ovens. The temperatures are logged in the csv file at 3s intervals and i wish to display them on 4 graphs. I've written a vi (or modified one i should say) to take in a temperature value from a numeric control. Im just having extreme difficulty with the reading part.
If someone can help me it would be greatly appreciated.
Best regards,
Dawn
Attachments:
Oven temps.csv ‏2 KB
Oven_level_meas.vi ‏58 KB

Hi there,
I have a similar problem here. I see your point that you should read the file at once but I don't seem to be able to manage it. Shouldn't you use some kind of
a buffer to achieve this? Let me tell you what I am trying to do: I have a csv file with several columns that I want to display in several waveform charts. Each column is a wavechart. I should be able to change the speed at which the data is displayed. I am able to do this because I change the wait until (ms) in the for loop. However the application is too slow. I think because I open the csv file in the for loop and display it while I am reading it. I have tried to put it outside the for loop but this doesn't work. I think I need some kind of a buffer in which the data is stored after reading it. And then this buffer should be used in the for loop. I have looked at the producer-consumer structure but I dont fully understand it as I am not that experienced with labview. Any help or changes to my VI would be appreciated. I have attached the VI and the file with meaningless data I am using for testing.
Thanks
Attachments:
read_data_file_dynamically.vi ‏39 KB
test.CSV ‏332 KB

When I place a 'write to measurement file' express I get an 'Error in prop page construction: Control Label: Streaming' Using Labview 8 on XP. Any ideas?

When I place express 'write to measurement file' I get an error
'Error in prop page construction:
Control Label: Streaming
Couldn't find control/constant on the instance.'
Help!!!!!
Please.
Regards
Derek

The error happens as soon as I place the symbol. The symbol is there and the properties are all accessible, but will not run.
I enclose word doc with error messages on.
Many thanks in anticipation
Derek
Attachments:
LabviewA.doc ‏86 KB

How to name columns in "Write LabView Measurement File" Express VI

Hello, I am inputting two signals into the "Write LabView Measurement File" Express VI, and although the data is recorded correctly, there is no separate header for all the y-values (I only get the X-value column labeled: X_Value), and then there is a "Comment" field right next to it. How do I name these y-value columns so that the header appears alongside the X_Value tag? Thanks.

I don't want to read from a LabView measurement file. I'm saving in a file; that's good enough. I just need to save it in headed columns. Any suggestions?
Here's a test of the program with two random data inputs, and a picture of the output.Message Edited by Doagie on 06-13-2005 01:22 PM
Message Edited by Doagie on 06-13-2005 01:22 PM
Attachments:
1.bmp ‏218 KB
2.bmp ‏405 KB

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Probleme for writting in to the file

Hello, I have a problem in my applicaion and I need your help.
My problem is the following:
I have a vi Entrées Consignes1.vi, when I run this vi, It open the file for exemple : FAUX.txt (which contain the expression like name = value),after the opening, the differents values display in my Entrées Consignes1.vi. up until then , that's ok!!
But my problem is when I modify some values in my panel control and when I click to the button" Modifier Données" I' d like save it in the same file without affect the different name.I'd like just modify the values because in my solution,I don't know what make?
I send you the Entrées Consignes1.vi with the file FAUX.txt
Thanks you very much for your help.
My seconds question is what exactly is the difference of Labview and Labview Real time?
Attachments:
Dossier.zip ‏31 KB

Pardon, j'ai oblier l'attachment.
- tbob
Inventor of the WORM Global
Attachments:
EntrÃ©es Consignes1.vi ‏101 KB

CRIO write to measurement file

I have been searching for a solution like mad but I have not found one yet.
I am using a cRIO-9002 with the cRIO-9215 card.
In regular labview one can create a signal generator and use the "write to measurment file" function and a nice file is created so that data points can be plotted versus time.
Now once I try to do this in a Real Time VI for some reason the file never gets created. I can not figure out why.
The whole point of this operation is to take accelorometer data from an inflight RC helicopter but I am using a signal generator to simulate an input for the accelorometers. I am including code just in case someone what to take a look.
I am also open to any other solutions you might have.
This should be a simple task but I can't seem to get it to work.
Thanks in advance,
Anthoney Pennington
Attachments:
cRIO data capture.zip ‏158 KB

Hi Carsale,
I tested out a really simple vi using Write to measurement file.
Double click on the express vi.
I simply directed the path to C: (root directory of the controller)
You can then FTP to it by specifying its IP address ex: ftp://10.0.35.160/
Hope this helps
Van L
NI Applications Engineer
Attachments:
Untitled 12.vi ‏77 KB

Attach labels for write to measuremen​t file and graphing

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Attach labels for write to measurement file and graphing