Slow data transfer between PC and Agilent N3300A

Hello

I use a N3300A of Agilent connected via Serial-> USB to a PC running LabVIEW 2012.

In my tests, I found that the time required to recover data from is very long. The example below, supplied with the drivers, I measured each of the subVIs 3 who read the instant action takes about 11.7 seconds to complete.

Therefore, this example VI does not work out of the box, I need to increase the maximum time constant and to also connect the two subVIs away. In otherwise, a time-out occurs, the device no longer and needs a reboot to be controlled by the PC (have not found another more elegant way to get the control).

Is it possible to speed up the process of data recovery? And as a bonus question, how to control remotely again the instrument after a timeout place?

Thank you for your time

What is the data format?  Instruments can usually transfer using ASCII or binary.  Binary would be more effective.

GPIB would fill a lot faster (can reach 1 Mbps).  At 9600 baud, you run 1200 b/s, excluding the start and the stop bits.

Assuming that the binary format to 4 bytes/data point, your serial communication should take about 3.3 seconds.  Assuming ASCII with 12 bytes/data point (pure guessing here), which is 10 seconds.  11 seconds for a transfer is therefore not out of the question.

Tags: NI Hardware

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