current measurement at selected voltage for keithley 6487 picoammeter

[shai9841]

I am totally new in this platform and need help regarding continuous current/resistance  measurement using Keithley 6487 picoammeter and a serial bus (rs-232 straight through cable).

The current/resistance measured shall be made at a user defined voltage.

It would be great if someone with the same issue has a help on offer.

Best Regards

[crossrulz]

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@shai9841 wrote:

I am totally new in this platform

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What platform are you using?  Have you tried looking for drivers for this device you can use?

[shai9841]

Dear crossrulz,

Thank you for your interest to help. By platform, I meant labview 2018. I have driver for Keithley 684X series installed and I can see three examples but unfortunately it is not what i exactly need. I was able to connect my device (keithley 6847 picoammeter) with these examples but my requirement is just measurement of current at a selected voltage. Basically, I need to give a voltage to my device and measure current from it using RS-232 straight through cable.

Best Regards

[shai9841]

In addition to issues stated in my previous reply, I need a continuous current measurement. My device has a range from -500 to + 500 V. I need to measure current continuously at specified voltage within this range and plot the current vs time with a stop push button to end the program. The duration of current could be few hours or even days. The measured data(CURRENT) is required for further analysis.

Best Regards

[crossrulz · Accepted solution]

Break your problem down.  First you need to figure out how to set the voltage.  I imagine there is a simple VI in those drivers to do that.  Then you need to figure out how to get your measurement.  Again, there should be a simple VI for that.  After that, put the steps in a loop and make it do what you want.