Separating 1D array of clusters containing 2 elements

[topaz]

Oops, I originally posted this in the FieldPoint forum...my bad!  I am using the PID Setpoint VI (with LabVIEW 7.1) and I would like to be able to enter my set point values on the front page in engineering units, not percentages or voltages.  I am guessing that I have to separate this 1D array of clusters of 2 elements (time, setpoint) and then somehow separate them again to isolate setpoints, put in my conversions to get to percentages (or voltage...still haven't figured out if the PID setpoint vi uses setpoint as a percent or a voltage, which is what i'm outputting to control a pump), and then cluster them back together to be fed into the PID Setpoint VI.  Does anyone know how I can do this?

[JulieC]

See the attached VI and control, though I don't know what the correct conversion is.

[tbob]

I don't have the PID vi, so I don't exactly know what the cluster looks like.  But here is a way to convert the second cluster element of all clusters in the array and save them back to the array.

Message Edited by tbob on 09-05-2006 02:25 PM

[Darren]

Here's another way to do it...just scale the desired cluster element as you wish, but leave the other element unchanged (by dividing by 1, or adding zero, etc.).  As altenbach would say, "Look ma, no loops!"

-D

Message Edited by Darren on 09-05-2006 03:33 PM