Kirit

Hi dan,

I have solved the first problem . I have attached it. now i can display and write exact temperature. But stuck with the second one. As not getting any hint so far.

i want to close the file after certain time and want to creat a new file to store the data.

thanks again.

kirit

QUOTE (Dan DeFriese @ Nov 10 2008, 10:12 PM)

Again, please post your own work.

~Dan

Hi Dan,

Thanks again. I have uploaded my work here. Here i have felt in another problem the temperature which i saw in the display(front panel) is accurate but whenever i go to write it. it write 0.00000 . Is there any wrong conversion there ???

And Again how to close the file after certain time and a new file will begin ?? Please give me some hint. I will do that.

with thanks

Kirit

QUOTE (crelf @ Nov 10 2008, 08:55 PM)

Indeed - I really like that NI's exposed that capability. They did the same with Vision Builder AI - if it doesn't quite do what you need, you can call your own code :thumbup:

Upload your code and we'll try to help.

Hi i have uploaded which i have learnt today. here i get the dat file which i cant use in Excel . And i cant segregate the temperature reading with time. Say i want my output like this :

10 Nov 08 11:00 52

10 Nov 08 12:00 50

10 Nov 08 13:00 51

But which i have done is not that much close.

After 24 hours the file will be close and will begin a new file. I am really concering abut the programing related to time and Date.

Thanks a lot

Dear Thang Nguyen

thanks for your reply. I already have a data acqisition system by which i can read the teperature of the thermocouple and i am able to diplay the temperature in the front panel. And i have learnt just now to write them in a file. but i am still confused about the rest steps. that means i need to show the temperatue in respect of day and time. Every hour it will record one temperatue . after 24 hours the file will be close and a new file will open and start recording. please let me know i am not clear to you.

thanks again

QUOTE (Thang Nguyen @ Nov 10 2008, 05:11 PM)

Kirit,

I don't really sure what you mean when you say you can acquire data from thermocouple. Did you have a device to get the data from the thermocouple yet? You need to use a device to get data from thermocouple such as compact FieldPoint (not too fast <200 samples/sec)or compact DAQ (> 200 samples/sec). Then depending on the device you use, there is specific VI as well as specifi method to read the value in. From that point you just store data like a floating point value. To write data into the file such as Excel file I usually use the .csv file which can open with Excel. To write data into file you can use the "write to spreadsheet file.vi" or "read from spreadsheet file.vi" to read data out. All of the methods to use these VIs can be found in the example finder.

You can start from here to look for the appropriate device: http://www.ni.com/dataacquisition/.

Take care.

Hi ,

I am using Labview for 2 month. I want to measure the temperature daily basis (reading in every hour) then i want to write it in a file (which can be use in Excel) after 24 hours the file will close and new file will open to record the data.

I am using a thermocouple. i can acquire data from that thermocouple but the rest work need your help. My intention is to take data in every hour and write it in the file.

please help me. thanks in advance

Kirit