Agilent U2700 series: How can I read more than 1250 sample point from the waveform memory of a U2701A/U2702A?

[holgerh]

Is anyone using an U2701A/U2702A USB scope and is able to retrieve more than the 1250 waveform points with LabVIEW (8.6.1)? I'm currently using the dll wrapper drivers downloaded from the NI driver site. I believe I haven't understood the basic principles of how the aquisition records are configured here.

Thanks,

Holger

[Wetzer]

Hello Holger,

the instrument driver you are talking about, is not developed by National Instruments.

National Instruments only provides a platform to publish and download the driver. 

A good starting point would be to contact Agilent, who has developed the driver.

Hope this helps a little

Regards

Moritz  

[asdfdfsdfasd]

Hi holgerh,

I know you posted this almost a year ago but I just started using an Agilent U2702A oscilloscope with LabVIEW (8.5) and I am having the same problem.  Did you ever find a solution?

Thanks,

Kerry

[holgerh]

Hi Kerry,

Unfortunately I did not find a solution but also didn't try much longer since priorities changed. However the problem is still on my list of things to do and I would have had use for this function several times. 

You let me know if you figure something out?

Thanks,

Holger

[asdfdfsdfasd]

I will definitely let you know if I have any success with it

Kerry

[kansal]

Hi ,

Did u both find a solution to the problem ??

Because am facing the same problem now.. i kindly need some help..

Thanks,

Kansal.

[holgerh]

Nothing new from my side... I didn't come back to the issue but would still like to hear if someone has a solution.

[CS_Graham]

Just discovering this myself:

This box is sold as having a 16Mpts memory:

http://uk.farnell.com/agilent-technologies/u2702a/oscilloscope-200mhz-modular/dp/1577813

But Agilent say it can only do 1250 points

http://www.home.agilent.com/agilent/editorial.jspx?cc=GB&lc=eng&ckey=1493714&nid=-34492.774929&id=14...

I was after about 2Mpts do it's rather dissappointing.

[kerry_k]

I never had any luck accessing the deep memory using LabVIEW either.  I haven't worked with it in a while, but I believe the drivers (that were written by a third party) for the Agilent U2700 series to work with LabVIEW do not include access to the 16Mpts (only the 1250 points).  Very unfortunate.  It would be great if Agilent would develop drivers that worked with LabVIEW before advertising compatibility.

However, the entire memory can be accessed using the Agilent software that comes with the device (Agilent Measurement Manager).  I ended up collecting and saving the data using AMM, and then post-processing in MATLAB at a later time.  Not the best solution but it worked.

Kerry

[Albert.Geven]

can you spy on the commands that are send out by the agilent software?

The older scopes had the same problem. It was simply another command to be send to get all the data of a wave form.

I don't know it by heart but maybe can find it later.