GPIB-USB HP3562a...

[RSibagatullin]

Thanks for your code. It writes succesfully to the tool but I don't get any reading output still. Sometimes it gives me a timeout error for some reason as well 1073807339.



[Drewski]

I predict that if you continue to make code easier to read, then you will simplify yourself out of a job! 

Just kidding, excellent clean up.  I'm going to miss the negated and anded boolean input though, *sniff.*


"Remember kids, always over comment the code, you never know who the next joe shmo will be who has to work on it.... it might even be YOU!"

[Drewski]

The data can be dumped in 3 states from 2 different sources.  Do you want ASCII Data Format, ANSI Floating Point Format, or HP3562A Internal Binary Format?  Do you want the raw data or what is on the display.   The display is generated from the raw data. 

When you get the data, the raw or the cooked, there is a header file that describes the contents of the "data."

Which format and data set are you desiring?


Message Edited by Drewski on 05-29-2008 11:48 AM

[Drewski]

I just looked in the code here and there is a vi that "erases" this error -1073807339, which is the same error you are getting.  Ignore it and continue. Enclosed is a vi that will eat the error.

[RSibagatullin]

Based on what I read in the HP coders manual I need to get  the data in the  ASCII format.  Basically  I need to show the power spectrum plot   on my GUI and plus I have to record the reading from the Marker (power at one frequency). I am still fuzzy about how exactly it has to be done  since it is my first ever data aquasition  attempt.
Thanks.

[RSibagatullin]

I can't open this file since my LV is 8.0. I still can't figure out why reading never returns anything while the writing sequence works fine.

[Dennis_Knutson]

One oddity that I notice is that in the command string in the top level, the 'ddas' has the ';' command separator. You then appended another one of these in the query subVI.  I'm not sure you need the one in the subVI. You can copy the command string and run this in MAX. See if you get data there.

[Drewski]

The command you want to send is A;DCAS;  Which is Channel A, Dump Coordinate Transform Block (the screen) in ASCII
Then you need to decode the header.

There is a way to get the marker value, I'm looking through the code to see how.

[Drewski]

To read the marker it's RDMK; and it returns two comma seperated values.  Value 1 is the X-Axis and Value 2 is the Y-Axis.

Maybe you could practice reading that first, before the data?

[RSibagatullin]

Good point. I will try to read the  maker now. I''ll let you know shortly how it will go.