time in miliseconds

[bayram_mercan]

i'm getting thermocouple data from a NI board. but also i want to get exact time like hh:mm:ss and also miliseconds. because i get 100 samples per second. how can i do that? also why my task gets last 100 data?

[Tim_S]

QUOTE(bayram_mercan @ Jan 24 2008, 05:57 PM)

i'm getting thermocouple data from a NI board. but also i want to get exact time like hh:mm:ss and also miliseconds. because i get 100 samples per second. how can i do that? also why my task gets last 100 data?

You're getting 100 samples back because that's how many you've configured the DAQ assistant to return. I suspect that 100 samples is the default and it wasn't changed.

I'm not sure what you're looking to do with getting the exact time. Are you looking to have a timestamp for every sample? For the start of the data? For the end of the data?

[bayram_mercan]

i mean if i take signal for 5 seconds, i want to get 500 values. but i get last 100 sample values.

for the time, i wnt to get the exact time for each sample value.

[Tim_S]

QUOTE(bayram_mercan @ Jan 25 2008, 07:31 AM)

i mean if i take signal for 5 seconds, i want to get 500 values. but i get last 100 sample values.

for the time, i wnt to get the exact time for each sample value.

Converting the dynamic data type to a waveform will provide you t0 and dt. From there you can get the array you're looking for.

[bayram_mercan]

QUOTE(Tim_S @ Jan 26 2008, 05:44 PM)

Converting the dynamic data type to a waveform will provide you t0 and dt. From there you can get the array you're looking for.

thank you for the help.