LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

reading data flow files

Hello,
 
I like to know if its posible to read dfd files, Dataflow files. I include an example of the file format.
 
Thanks in advance
 
B Bakels
Labview CLD , Engineer/Manager

Promedes and DSM
using LV 7.1, 8.0, 8.2, 8.5 and 2009 SP1
http://www.promedes.nl
0 Kudos
Message 1 of 7
(3,542 Views)
Hi B Bakels,
you can read this files with the "Read From text File" or "Read from Binary File" function. What do you want to do with this data in LabView?
Mike
0 Kudos
Message 2 of 7
(3,539 Views)

Yes i know, but i would like to extract the data form the file but its encrypted in dataflow format..? Thats my problem

 

thanks in advance,

Labview CLD , Engineer/Manager

Promedes and DSM
using LV 7.1, 8.0, 8.2, 8.5 and 2009 SP1
http://www.promedes.nl
0 Kudos
Message 3 of 7
(3,530 Views)
Hi Bart,

do you have some link to file format explanation? Just from that extension we cannot help...
Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
0 Kudos
Message 4 of 7
(3,528 Views)

Its a fileformat form the firm kistler. I attached a file to the first post. I dont know if its possible to decrypt this file with labview

Thanks

Labview CLD , Engineer/Manager

Promedes and DSM
using LV 7.1, 8.0, 8.2, 8.5 and 2009 SP1
http://www.promedes.nl
0 Kudos
Message 5 of 7
(3,492 Views)
Hi bartb,
we saw your file, but i think the question from gerd is, if you now how to read this file. Do you know the meaning of each byte?
Mike
0 Kudos
Message 6 of 7
(3,489 Views)
Hi bartb,

well, we know that you attached an example.
But we don't know the file format!
We can only guess:
-First 0x1270 bytes contain header data (identifier, version numbers, date/time strings, information on used hardware, channels, etc.). You have to know the format to get it into human readable form.
-Remaining bytes (starting at offset 0x1270) seem to contain 16bit data (according to used PCM-DAS16 hardware?). The data seem saved in big endian order...

The attached vi will load the data part of the example file - you have to interpret the data as I neither know the format correctly nor do I have knowledge what those data represent...


Message Edited by GerdW on 07-10-2008 02:09 PM
Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
0 Kudos
Message 7 of 7
(3,483 Views)