25.06.write-binary-rawdata.vi

writes only rawdata in binary form in a file with the name "rawdata"Now at run #".bin", without fitting signals or any calculation.

writes out 1 file:

•   rawdata"Now at run#".bin  :  binary file of the rawdata; 

Before starting the program you can set several parameters for the data acquisition program:

Card settings for PCI-9812:

• Number of the data acquisition card: 0 (begins with 0, 1, 2, ...  ; the oder in the PC is from top to bottom PCI-slot);
• Number of the trigger source: Channel 0 (default value), the incoming triggersignal is detected on this channel;don't change this parameter
• A/D Count: 1000 (default value, max lvalue is 1000) , length of data which will be taken if a trigger is detected, kimited on internal buffer of the card;don't change this parameter
• Reserved Buffer for A/D Data : 999 (default value) (the program reserves 999+1  =1000 values);don't change this parameter
• Sample Rate: 10 MHz (default value, means 1 timebin=100ns), frequency depends on the internal clock, sampling rate = frequency of source clock (40MHz) divided by 2,4,6,8,...1024(max) ;don't change this parameter
• Post count (delay): 0 (default value); time till card starts data acquisition after trigger event; don't change this parameter
• trigger mode: delay trigger (takes about 350 ns to start data acquisition + post count);don't change this parameter
• trigger polarity: positive trigger;don't change this parameter
• trigger level: Trigger in units of 8 mV, e.g. 0 mV, 8 mV, 16 mV, ...., 96mV, 104 mV, ... (range -1 to +1 V);

Program settings:

• run until max #: 999999 (default value) (means that the program runs 999999 times with the specified number of samples), here you have the possibility to set a limit how the program should take the specified number of samples;
• now at run #: indicator to return tha actual run number;
• read # samples: 5000 (default  value), number of trigger events = samples; all found signals will be tested to satisfy the cuts and than sorted in short or long drifttime, filled in 2 different histograms, the histograms are than gauss fitted and the difference of the 2 means will be calculated = drifttime
• now at sample #: indicator to return the actual sample number;
• file-path to store the file: 1 file will be stored in this specified path.
• now at file #: returns the number of the newest binary rawdata file with this name: rawdata"Now at run#".bin;
• file size: returns the size of the binary rawdata file, should be "# of samples" * "A/D count (1000)" * "2 bytes", for example 5000*1000*2 Byte = 10MByte;

Displays and histograms:

• displays only current signals

The control buttons:

• STOP (after an additional run with saving all files): when pressed during execution, the vi will take an additional run with the specified number of samples ;
• STOP (immediately, at current sample, with saving all files) : stop after the next sample with saving all values in the files, becareful the binary rawdata file will be shorter ("# of samples" * "2000 bytes");
• START daq : starts the program after compiling it (put it into "run mode"), or if pressed before compiling, the pogram will start immediately;
• ABORT : aborts the program without saving any file, you can also use "Control + . " to abort the vi or press the red button in the headline of the VI;