User manual

UniversitàdegliStudidiCatania
IntroductiontoNILabVIEW
 IntroductiontoVirtualInstruments:Icon&ConnectionPanel
LabVIEW programs are called virtual instruments (VI) because their appearance and operation imitate physical instruments, such as
oscilloscopes and multimeters. Every VI uses functions that manipulate input from the user interface or other sources and display that
infromation or move to other file or other computers.
LabVIEW User Manual
AVI contains thefollowing three components:
• Front panel – Serves as theuser interface
• Blockdiagram – Contains thegraphical sourcecode(Glanguage)that defines thefunctionality of theVI
• Icon andconnectionpane– Identifies theVI sothat you canuse theIinanother VI.AVI within another VI is
called subVI.AsubVI corresponds to asubroutineintext‐based programming languages.
TheIcon identifies theVI soyou canuse
it inanother VI
Theconnector paneis asetof terminals
that corresponds to thecontrols and
indicators of that VI,similar to the
parameter list of afunction call intext‐
based programming languages.The
connector panedefines theinputs and
outputs you canwire to theVI
Icon
Connectionpane
DIEEI