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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

Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
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
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
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
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
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
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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