Interval scanning using Agilent 34970A

[eschl]

Hi, I'm using LabVIEW with the 3470A Data Acquisition/Switch Unit to set up the Interval scan rate to scan every 10 seconds for 30 scans. The

problem I have is trying to record the data from all channels after every scan. Any idea how do go about doing this? I'd appreciate any help with

this.

Thanks

[LoganS]

Have you downloaded the driver for the 34970A from Agilent.com or from our Instrument Driver Network?

Agilent Search Results
Agilent has a few plug'n'play drivers as well as an IVI-COM driver.

IDNET Search Results
We have two versions of the driver - one for LabVIEW, one for CVI.

Once you have the driver downloaded, I would then start with any examples that might ship with the drivers. Have you already done this? Are you working with any other driver software? Any NI hardware? How are you connecting to the 34970A? GPIB? Serial? Please let me know.

Logan S.

[eschl]

Logan, Thanks for the info. The drivers on the Agilent CD, mainly the HP34970A scanner VI got me going. Seems like I was on the right track except I was using the wait (ms) timer instead of the Wait until next ms (multiple) timer in the while loop. Every thing seems to work fine with the wait until next ms timer, but the data was out of sync when I used the wait(ms) timer.  Does this make sense to you? Guess I never did know the difference between the two timers. Guess I forgot to mention this, but I'm using NI LabVIEW and GPIB drivers to commuicate withe the 34970A unit.

Thanks Elliot

[LoganS]

There's a great description of the difference between the two timing options on the following discussion forum post:

Why does a while loop run faster than it's specified Wait Until Next ms Multiple?

Hopefully it helps, if not just make you smile!

Logan S.

[eschl]

Logan, great story on the timer - this heips explains what was happening. I'd like to thank you again for your help. This was my first time posting and if I have any more LabVIEW related questions, I'll definitely post again.

Thanks Elliot