Stand Alone Control

[seascan]

Hello.  I am completely new so this may be a very easy question:

Here is a photo of my block diagram

All of the code works as expected.  My issue is this:  I need abput 50 sets of these controls (two pressure indicators and one tank level indicator plus all of the logic).  I want all 50 to be controlled by the two knobs and the one stop button.  Is there a clutter free way of doing this... in VB.NET I would simply create a control and have three inputs (two doubles and a boolean).

Thank you in advance for any ideas!

[GerdW]

Hi seascan,

what you call "control in VB.net" is named VI in LabVIEW - yes you can create one with 2 inputs and one output...

And when you need 50 of them: consider using arrays for your data - and please go through this!

Btw. don't you think it's a bit of overkill to calc gain/offset with fitting routines?

[seascan]

Hi GerdW.  I have been through all of those over the last two days.

Perhaps I've missed something, but I can't figure out how to add my VI (below)

to a project and see the GUI.  You can see that the upper right corner show the two doubles and the one boolean wired correctly. 

[seascan]

Forgot to ask:  besides using the fit function or doing the raw math, is there a built in function for scaling a sensor?

[aeastet]

You could use the slope and offset in the DAQMX channels. This way everything is scaled prior to using it in your code.

[aeastet]

So if I understand you correctly you need to have fifty seperate controls for different tanks correct? How do you expect to do this without having this be cluttered?

[aeastet]

How do you plan on this code working? What is the flow that you expect?

Turn two knobs to desired level

Read sensor

Adjust output

...

[seascan]

Hi Tim.  Yes, basically that is it.  For now I want to knob controls (4-20) to be inputs to all 50 "controls" or VIs.  Later after everything is working I can plug in an actual DAQ and use real data.  For now, two knobs and one stop button to control all 50. 

The GUI will be cluttered!  But I was hoping to not have to copy and paste all the logic -- I thought perhaps a cluster would work but I can't seem to add the logic to a cluster (I guess it is only a container).

Here is a project I made that contains my VI.  This is great EXCEPT I can't see the VI's Front Panel in the new VI.

[aeastet]

Make a sub VI and have the two controls be references into each instance. That way you make the code once and connect the same knobs to the all of the vi's

[seascan]

Tim,

That is exactly what I want to do but when I try to create the subVI, it bundles everything except the visual controls.  Is there a way to create a subVI with the associated visuals?  Here are the before and after screen grabs:

AFTER: