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In this section, you will learn about the LabVIEW front panel.

The front panel is the user interface of the VI. shows an example of a front panel.

Example of a Front Panel

Controls and indicators

You build the front panel with controls and indicators, which are the interactive input and output terminals of the VI,respectively. Controls are knobs, push buttons, dials, and other input devices. Indicators are graphs, LEDs, and otherdisplays. Controls simulate instrument input devices and supply data to the block diagram of the VI. Indicatorssimulate instrument output devices and display data the block diagram acquires or generates.

Controls palette

The Controls palette is available only on the front panel. The Controls palette contains the controls and indicators you use to create the frontpanel. Select Window>>Show Controls Palette or right-click the front panel workspace to display the Controls palette. Tack down the Controls palette by clicking the thumbtack on the top left corner of the palette. By default, the Controls palette starts in the Express view.

The Express palette view includes subpalettes on the top level of the Controls and Functions palettes that contain Express VIs and other objects you need to build common measurementapplications. The All Controls and All Functions subpalettes contain the complete set of built-in controls, indicators, VIs, and functions.

The Advanced palette view includes subpalettes on the top level of the Controls and Functions palettes that contain the complete set of built-in controls, indicators, VIs, andfunctions. The Express subpalettes contain Express VIs and other objects you need to build commonmeasurement applications.

In the Express palette view, toolsets and modules do not install subpalettes on the top level of the Controls and Functions palettes. Instead, toolsets and modules install on the All Controls and All Functions subpalettes. In the Advanced palette view, toolsets and modules install subpalettes on the top level.

Click the Options button on the Controls or Functions palette to change to another palette view or format.

Numeric controls and indicators

The two most commonly used numeric objects are the numeric control and the numeric indicator, as shown in .

1. Increment and Decrement Buttons, 2. Numeric Control,3. Numeric Indicator

To enter or change values in a numeric control, click the increment and decrement buttons with the Operating tool or double-click the number with either the Labeling tool or the Operating tool, type a new number, and press the Enter key.

Boolean controls and indicators

Use Boolean controls and indicators to enter and display Boolean ( True or False ) values. Boolean objects simulate switches, push buttons,and LEDs. The most common Boolean objects are the vertical toggle switch and the round LED, as shown in .

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
I'm not good at math so would you help me
what is the problem that i will help you to self with?
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
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Source:  OpenStax, Labview graphical programming. OpenStax CNX. Apr 09, 2015 Download for free at https://legacy.cnx.org/content/col11408/1.2
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