Instrument Control (GPIB, Serial, VISA, IVI)

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Keithley 2700 fast measurement of voltage waveform

I am interfacing LabVIEW 2018 using GPIB with a Keithley 2700 with no internal mux cards--so I want to read straight from the banana plug inputs on the panel front in 2 wire mode.

 

The Keithley 2700 manual states DC measurements speeds of up to 2500 readings/s in 4.5 digit mode.

 

The spec sheet notes indicates this speed is possible with:

"60Hz operation using factory defaults operating conditions (*RST). Autorange off, Display off, Limits off, Trigger delay = 0."

 

I'm supposing this speed is achieved by putting the data into the 2700's memory buffer that can contain up to 55,000 readings, then pulling it into LabVIEW (rather than querying individual point measurements through LabVIEW in a loop.

 

In my application, I don't need to trigger anything.  I just need to sample from a continuously produced waveform.

 

Does anyone have example code to do this, specifically, get a sample of voltage data at a rate of 2500 readings/s ?

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Hello PHacke,

 

The only examples for Keithley 2700 (which is tested and verified by NI) is plug and play driver examples.

You can find them here.

Make sure you have installed NI-VISA and 488.2 drivers which need to be the same version as your LabVIEW

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