acquire and save data with PXI-6281 for 6 hours of real-time

[sweet dream]

Hello, everyone.

I need help in creating an array and saving its contents in an output file so they can viewed.

Attached find a simple code that 2 output- make signal / 1 input-acquire and saves data.  Unfortunately

since the duration of the time is 6 hours realtime, there is no sufficient memory locally.  How can I save while the data is being acquired without overflowing the buffer?

and then, I want to save file that 1output signal(1hz) becoming high frequency. low frequency data is not saved. 

for example (saved file)         voltage value

2008-3-15 09:52:42.0000        1.3333

(not save period)

2008-3-15 09:52:42.0410        1.44444

2008-3-15 09:52:42.0420        1.44444

2008-3-15 09:52:42.0430

(not save period)

2008-3-15 09:52:42.1410

2008-3-15 09:52:42.1420

2008-3-15 09:52:42.1430

first measurment time 0.4s and then  1s(1400ms)period later measurment

[TroyK]

---

"How can I save while the data is being acquired without overflowing the buffer?"

---

 Save it straight to a tdms file... have a look at this document for details http://zone.ni.com/devzone/cda/tut/p/id/3539
That's a lot of data! (2KHz * 3600seconds * 6 hours * 8 bytes/sample = ~337MB) (you could halve it by using single floating point numbers instead of double.)

---

"and then, I want to save file that 1output signal(1hz) becoming high frequency. low frequency data is not saved. ..."

---

Sorry, I have no idea what you are trying to say here. Can you perhaps rephrase the question?