Data format problem with Write to Spreedsheet File

I have a problem with the data format with Write to spredsheet file.
I have an N*3 array, where the 3 elements in each row should has different length. When I used Write to spreedsheet file,
it can only save the three data in one format. How can I save them in the format of "%0.8f %0.3f %0.2f"?
Thanks for your help.

Hi powerplay,
another solution may be to convert column-wise using "number to fractional string", then interleaving resulting arrays and again using "array to spreadsheet string" (with "space" as separator).
Many ways lead to Rome
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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Problem with Write To Measurement File Express VI not writing to file if file was deleted after the first call (7.1)

I'm using the Express Write to LabVIEW Measurement File in LV7.1.
I have it set to "Save to one file" and have tried both "Overwrite file" and "Using next available file name" for the "If a file already exists" conditions.
The path/filename is passed into the function.
It works fine the first time around. If the file is deleted before the function is called again, an error occurs since LV is unable to find the file.
I have had to stop and re-run my program in order to write to use the function again.
Since I am able to delete the file I assume it was closed but it seems like LV expects it to be there, even though the function was supposed to create/open/close the file... Is there any way to reset this without stopping/restarting the program?
Since my application creates several files (only one using the Express VI) I am checking for the filenames and requiring that they be deleted (or a new filename be used) before acquiring data. Everything has worked great, except for the Express VI.
Thank you,
David

Ok, I've edited the VI you posted to reproduce my error (this time with 8.0).
I added a "master stop" and "start log" button. To demonstrate my problem:
1. Run the VI
2. Click "START LOGGING" - c:\test.txt is created
3. Click "STOP" - c:\test.txt is closed
4. Delete the file c:\test.txt with Windows shell or explorer
5. Click "START LGGING" - a new c:\test.txt file should be created but instead an error is raised in the Write LabVIEW Measurement File function.
Any ideas?
Thanks,
Dave
Attachments:
Write LV Meas File 2.vi ‏96 KB

HT204382 Hi, Ive just got myself a Macbook Pro, and Im having problems with sound on movie files. The format is wmv and they play OK on a windows 7 laptop, and Im trying to play them now on the MAC. The picture is OK , but no sound. I have Flip4Mac - no d

Hi, Ive just got myself a Macbook Pro, and Im having problems with sound on movie files. The format is wmv and they play OK on a windows 7 laptop, and Im trying to play them now on the MAC. The picture is OK , but no sound. I have Flip4Mac - no diference

Download and install the free VLC for Mac - that should work:
http://www.videolan.org/vlc/download-macosx.html

Problems with write to measurement file

My VI doesn't seem to write my signal properly when writing is enables.. however, if i change the "Write to measurement file" Express VI to a Write to Spreadsheet function, the signal is written correctly. From what I understand in previous discussions, there is a bug associated with enabling a write to measurement file, so is there a way to enable write to spreadsheet instead of using the express VI or is there a way I can bypass this bug?
Thanks,
TFlax
Attachments:
Analog test and collection.vi ‏700 KB

This is my second program ever written, first in matlab, so I am very new to the field. So why I choose one way over another I have no reasoning, all I know is that it works. I am collecting electromyography analog signals, with a range of +/-5V.. the "bad" writing with write to meas file is that I am getting a flat signal (range between -.01 to +0.01, give or take).. where when written with write to spreadsheet, the signal has proper voltage range and normal frquency and amplitude characteristics seen in EMGs.
I tried using a case structure for the write to spreadsheet, however it only writes the buffer size during continuous sampling. I need it to write the entire time the boolean (enable button) is true, also the enable button is operated as switch when pressed.
The discussion about the write to measurement file: http://forums.ni.com/ni/board/message?board.id=170&message.id=454380
Thanks again

Date Format problem...

Hi users,
Forte version : 2.e.2 and ForteWebSDK
Datacase : Oracle
We have a problem with a simple HTML text field which acccepts
a date. When we try to update the record with some date, the following
exception occurs:
24-Jun-1998 04:32:28 : XV01086 : Execute failed for SQL statement in
project Rap
tServices, class RaptSqlMethods, method updateActivity, methodId 104,
line 51, e
rror from database is:
ORA-01830: date format picture ends before converting entire input
string
The Oracle manual says that the above exception occurs when there are
some extra characters on that field, which is not the case. In fact,
we raise our own exception for the cases like : o1-Apr-1997,
01-apr-97 etc. The correct format is 01-apr-1998.
Same date soemtimes is added to the database successfully. Waht I mean
to say that the exception deos not occur consistently.
We just conevert the String taken from the HTML field into a Forte
DateTimeData Object and send it to database. May be, the conversion
part is causing the problem. But, once again the problem is not
consistent.
Any ideas in this will be appreciated.
Thanx in advance
-Rajeev Talwar
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We had the same problem when our application first went live. The
default date format for our Oracle database is 'dd-mmm-yy' without the
time component. The default format for datatype DateTimeData is
'dd-mmm-yyyy hh:mm:ss'. Since we did not want to change the default date
format for the Database, we included in our service partitions an Alter
Session statement to change the NLS_Date_format attribute in Oracle to
conform to the Forte DateTimeData format. It worked.
Kam Chow
Mazda Australia
-----Original Message-----
From: Gary F Giger [mailto:[email protected]]
Sent: Thursday, June 25, 1998 4:11 AM
To: Rajeev Talwar
Cc: [email protected]
Subject: Re: Date Format problem...
I was having the same problem a few weeks back when I would
read/write
dates to Oracle. I was using objects of type DateTimeData and I would
occasionally get errors like you said you were. I found discovered my
problem. Sometimes I would process a null date and would get an error.
So to
resolve this issue, I simply changes my objects of type DateTimeData to
type
DateTimeNullable. This enabled my Forte Application to handle regular
dates
as well as null dates. I have not gotten any oracle errors since then
with
regards to dates. Hope this helps.
Rajeev Talwar wrote:
Hi users,
Forte version : 2.e.2 and ForteWebSDK
Datacase : Oracle
We have a problem with a simple HTML text field which acccepts
a date. When we try to update the record with some date, the following
exception occurs:
24-Jun-1998 04:32:28 : XV01086 : Execute failed for SQL statement in
project Rap
tServices, class RaptSqlMethods, method updateActivity, methodId 104,
line 51, e
rror from database is:
ORA-01830: date format picture ends before converting entire input
string
The Oracle manual says that the above exception occurs when there are
some extra characters on that field, which is not the case. In fact,
we raise our own exception for the cases like : o1-Apr-1997,
01-apr-97 etc. The correct format is 01-apr-1998.
Same date soemtimes is added to the database successfully. Waht I mean
to say that the exception deos not occur consistently.
We just conevert the String taken from the HTML field into a Forte
DateTimeData Object and send it to database. May be, the conversion
part is causing the problem. But, once again the problem is not
consistent.
Any ideas in this will be appreciated.
Thanx in advance
-Rajeev Talwar
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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Gary Giger
Raytheon Systems Company
300 Science Park Road
State College, PA. 16804
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I have a problem with running an EXE file on win2000, the Lab View is 5.1 and I do not know if it is 16 bit...

I have a problem with running an EXE file on win2000, the Lab View is 5.1 and I do not know if it is 16 bit...what should I do?

Hi Arika,
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I hope this information helps.
Best Regards,
Wilbur Shen
National Instruments

Problem with RTPExport output video files

Hi, I have a problem with RTPExport output video files. One side streams H263/RTP(AVTransmit2.java) and other write this steam to a file by RTPExport.java. When network conditions are ideal, output video file has same fps and same number of frames like original file. Problem occures, when theres packet lost in network, then output file has different fps,and also has less frames like original video(because it didnt write missing frames to file, and thats why it get shorter). Pls how can I achieve output file that will have the same fps like original one? How to write to file an identical copy of what I can see while receiveing video with AVReceive2.java? Its there a way to modifi rtpexport or avreceiver to do this? Thanks a lot!

Trubka wrote:
When network conditions are ideal, output video file has same fps and same number of frames like original file. Problem occures, when theres packet lost in network, then output file has different fps,and also has less frames like original video(because it didnt write missing frames to file, and thats why it get shorter). Okay, first off, the second file is smaller on purpose. RTP intentionally drops packets that are old/out of order in order to make sure real-time video stays as close to real time as it can. This is by design, so there's really nothing that can be done about it.
How to write to file an identical copy of what I can see while receiveing video with AVReceive2.java? Technically speaking, what you're getting in the RTPExport is exactly what you got on the receiving end. Any frames that are dropped during transmission will not be seen by the receiver, nor saved by the receiver.
Pls how can I achieve output file that will have the same fps like original one? I'm not 100% sure that you can, but, you can give the following idea a try. I make no guarentees that it'll work, but it should work for you...
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/RTPConnector.html]
That example is an example of a "custom transport layer" for RTP connections. Essentially, it's some code that's handed the RTP packets on the transmission end, and it's expected to deliver those RTP packets on the other end. And it doesn't care about how they get from A to B, only that they do.
If you were to replace the UDP socket in that example with a TCP socket, you would be guarenteed not to drop packets due to network reasons. Every RTP packet you were handed by the transmitter, you would then hand to the receiver. There is no guarentee that none of the packets would be cast away as "old" by the RTP protocol itself, but there's also no guarentee any of them would be. It's a crap-shoot at best, but it's certainly worth a try.

Smartform: Formatting Problem with QUAN-Field

I want to print a smartform and get exception 1 (formatting error). With function SSF_READ_ERRORS I get an error table. There is on entry: errnumber = 020011, msgid = SSFCOMPOSER, msgty = E, msgno = 601, msgv1 = wa_outtab-menge.
It seems to be a formatting problem with field WA_OUTTAB-MENGE. But in the structure this field is referenced correctly.
Does anybody know a solution?

I solve this kind of problem in my SmartForm.
Try this:
Go to "Global Definitions" Node, then "Current/Quant.Fields" tab and set these values:
Field Name: WA_OUTTAB-MENGE
Reference Field: WA_OUTTAB-MEINS
Data Type: QUAN
Best Regards,
Eduardo Ribeiro.

Time with 'Write to measurement file'

Hello,
I am making an acquisition waveform. The integration time is 1s divided in 128 samples. When I execute the software, the datas are stored in a text file with 'Write to measurement file'. This text file is a continuous list of 128 numbers-packs in rows.
I want to add the time column (date+hour+minutes+secondes+1/10sec+1/100sec) in front of each number acquired. (And not only in front of the first number of the 128 package)
I have don t know how to add this.
Can you help me?
Thanks a lot.
(See file attached)
Attachments:
test3.vi ‏148 KB

Also, in the setup dialog for the Write Measurement File, there's an option to include an "X Column Value" that normally holds a timestamp.
Enable one of these options and any included timestamp in your waveform will go into this column. If you don't have a waveform, you can build an extra column in your array of data points with the needed timestamp and it will work the same.
Ed
Message Edited by Ed Dickens on 02-20-2007 03:37 PM
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.
Attachments:
WLVMF Time Column.gif ‏9 KB

I've switched from Google to Firefox because I was so tired of Google crashed all the time. Now I have the same problem with Firefox, Bank id, file down

Hej!
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Problem with Preview and PSD files - random gray square

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DAve.

maybe I'm onto something...
I've just found out that opening Preview in 32bit mode (instead of default 64bit) works flawlessly with any psd files. If I switch back to 64bit mode, Preview is much faster but the gray square comes back...
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Any more realistic ideas?

I have problems with seeing my bookmarks, file, view, edit...buttons. I tried other shortcuts. I noticed that all of my bookmarks are located in the Internet Explorer browsers, how can I restore setting back to Mozilla Firefox?

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Is the menu bar missing (the one containing File, View, Edit etc)? If it is, the following link shows how to restore it - https://support.mozilla.com/kb/Menu+bar+is+missing

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Problem with Append mode in File Receiver

Hello,
I am facing some problem with Append Mode in File Receiver.
In channel config, i have given :
Construction Mode : Append
File Type : Text
Message Protocol : File Content Conversion
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Thanks,
Soorya.

Hi Venkat,
I would suggest u to split the file in to chunks if u face any problem in processing at a time in append mode and also
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Plz do refer the following links:
U may plan the availability of ur communication channel using "Planning Availability Times" feature
http://help.sap.com/saphelp_nw04/helpdata/en/45/06bd029da31122e10000000a11466f/frameset.htm
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hi check the below links for reference
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10748ef7-b2f0-2910-7cb8-c81e7f284af5
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/7086f109-aaa7-2a10-0cb5-f69bd2affd2b
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2498bf90-0201-0010-4884-83568752a857
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cc1ec146-0a01-0010-90a9-b1df1d2f346f
Regards,
Vinod.

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Data format problem with Write to Spreedsheet File

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