Controling a power supply (Agilent E3649A ) via LabVIEW through GPIB-USB

[data-biter]

IHey everyone,

I am trying to control a power supply( Agilent E3649A ) via LabVIEW via GPIB-USB. I have been able to download the drivers and control the voltage setting. However, I am trying to implement an alternating potential (i.e. 60 volts for 5 minutes, 30 volts for 2 mins, then 60 volts for 5 mins, and so on - essentially a square wave) over 1-3 hours. Anyone have suggestions? I am a new to labview and am running out of ideas.

Thanks,

Josh

[nyc_(is_out_of_here)]

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However, I am trying to implement an alternating potential (i.e. 60 volts for 5 minutes, 30 volts for 2 mins, then 60 volts for 5 mins, and so on - essentially a square wave) over 1-3 hours.

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That is your job. You need to write a LabVIEW program that can do this.

If you need training on LabVIEW, take some training. http://www.ni.com/academic/students/learnlabview/

[crossrulz]

state machines are very useful for tests like that.  What kind of help are you looking for?

[data-biter]

crossrulz - I am looking for a push in the right direction as far as writing the IV to do the job. I can control the output of the power supply but am not sure how to cycle the voltage between two values for a set period of time.

Any suggestions would be greatly appreciated.... thanks in advance!

[Albert.Geven]

Do the timing in labview.

set the output to x

wait

set the output to y

[crossrulz]

As previously stated, I would use a state machine.  Two states you will need are a Set Voltage and a Wait.  Other states likely needed are Initialize and Close where you setup and shut down your instrument.