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Ramp pattern used in voltage sweep

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Hi there!

Currently using Labview 2012 sp1 and i'm using two pieces of equipment, a Keithley 2401 source meter and a luminance meter.

 

I want to do a voltage sweep from say 0-10V every 0.5V, then read out the current as well as the brightness detected from the luminance meter. I tried using keithley 24xx sweep and aquire measurements.vi, and putting it in a while loop and then using a flat sequence structure, hoping that each time during the sweep say from 0V to 0.5V, the current would be read, then the brightness, and then so on until the sweep was finished but the loop is incorrectly used I think. I can get the data for the voltage and current fine, but only the first value at 0V for the brightness is present.

 

I've been reading previous posts about using the Ramp Pattern.vi (shown below), so that I can set the voltage values by: start, end and samples. I'm unsure how you use it though, like do I have to connect it to the Keithley some how? Also I want to connect this to the iterations in a For loop so when its finished the sweep it ends the loop, how do I do this also? 

 

Many thanks in advance!

Will


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