i have continous digital realtime data coming from DAQ PCI 6534 ,something around 10000 bytes per second,i want to store all bytes into some file format onto hardisk, i should not lose any data till labview is running

[GerdW]

Hi vish,

there's a big text box to put some text into 😉

What do you want to achieve? 'I should not lose any data till labview is running'? You want to store data even before LabView is running?

[vish.solanki]

HEllO GerdW,

I have Labview 8.0.Win XP.

I am actually continously acquirng digital data from DAQ PCI 6534 card.
this data is (from sateliite)is at rate of approx 10000 bytes per sec or whatever near, to the PCI card.


I have written this code.... which takes data from a ready made fixed size file stored in IC.

but for continous real time acquistion and storing it ,is required.
But when satlelite is up and real time data will be acquired,it will be in buffer ,the ode will process and display some grap..,then we will have to store that data(array of bytes)in file, simulataneously also the new data coming in should follow the same process and get stored in one file.

the realtime data we will ,monitor and store would be apporx for 1/2 or 1 hour.


NOw if your see my programmfront panel..u will see telemetry data (2D array at bottom) this show the data acquired from IC.I aquire about some 15000 etc bytes which are display in that 2d array. now wen i wanna store it ,it wil ask me for the "save as..." ***.binary file.

can u assist/help me here i wanna store contiuos incoming digital data into some binary file over 20 -25 minutes.

overview.
Incoming DATA--->process that data(simple arrangement in array)---> store in file

this process should be continous with no loss of data

Waiting for reply.

[GerdW]

HI vish,

please stick to your own thread - but I found your attachment in a different thread... I will check it later this morning.

[Justin D]

Hello vish,

Have you had a chance to look at the various file I/O examples that ship with LabVIEW?  If you go into the example finder (Help->Find Examples) and browse to "Fundamentals->File Input and Output" you will find lots of examples that show how to do file I/O.  These examples show how to write binary/text/tdms/datalog/xml/etc... files.  If you want to stream data to disk while acquiring and processing, I would reccommend the TDMS file format since it is optimized for quickly streaming data to file.

-Justin D