Keithley 2000 Sampling Rate

[kunalkalra]

Hy folks,

I need a bit help from anyone, Firstly I am new to Labview and I have to logg the data using keithley 2000, I dont have any connection problem, I am able to run NI "Read single" and "Read Multiple" vi's sucessfully. Now the Problem I have is the sampling rate, which I need to be an input between 1-10 samples per second, I have attached the VI which I created to record I no where get the expected output Its always timeout error. I have one more VI in which everything is inside while which I use to Logg now that works but it gives one reading every 1 second or more. Kindly help

Settings I am using is: RS232, serial to usb adapter, Baud rate 19200

Thanks in advance

regards

Kunal

[Branni]

Hi Kunal,

which driver are you using for your data logger? Can you attach it in your post or provide a link otherwise the VI is not working.

Regards

Branni

[crossrulz]

How much data are you trying to collect?  Over what period of time are you collecting this data?

[kunalkalra]

Hy Branni, I am using the one downloaded from NI website the Plug and play IVI I think... I have attached the zip file 

[kunalkalra]

Hello Crossrulz, I need to collect for minimum 5-10 minutes and If possible sometimes till 30 minutes but sample rate must be minimum 10 Samples/Second. Looking forward for any help. Thankyou

[crossrulz]

I cleaned up your VI some.  One of the biggest things I saw was that you were closing the driver inside of your loop.  You shouldn't close until after you are done with it.  So I moved it to after your loop.  Also made your formatting of the data a lot simpler.

Reading a DMM measurement and saving it to disk in 100ms seems like it will be a slight stretch.  We may have to go to a Producer/Consumer setup to move the file writing into another loop so that the acquiring of data is (somewhat) consistant.