Acquire Data over GPIB in word Format

[eengin]

Hi,


I am using LabView software to acquire data from a AG86100 oscilloscope. For speed purposes I set the scope to send the stream of data in word format(16 bit signed integer). The scope sends each point on its screen in two bytes. How can I make LabView treat received data as 16bit integers and plot it?

Thanks...

[JohnM 64]

Hi eengin,

The bytes that come back from the VISA Read are in string format. In order to graph this data, you can take the two bytes and typecast them into a single 16 bit integer. The Type Cast function is on the All Functions >> Advanced >> Data Manipulation Palette. You can then pass the data point-by-point into a chart, or build an array out of the data and pass the array into a graph.

Hope this helps!

john
Applications Engineer

[eengin]

Thanks for your help,

I tried to take the data of 8192 chars and grouped them two by two and then convert it.