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Calculator Program In Labview Download Electrical TechnologyCalculator Program In Labview How To Exclusive EEWhat is LabVIEW LabVIEW stands for L aboratory V irtual I nstrument E ngineering W orkbench and is developed by National Instruments. It is a powerful programming tool that gives software solutions for scientific and engineering systems. LabVIEW is a graphical programming language in which data flow determines the execution of program, in contrast to text based programming language where instruction (lines of text) determines the program execution. LabVIEW allows one to build a user interface which is known as front panel using a set of tools and objects. Calculator Program In Labview Code On BlockAnd then allows user to add code on block diagram using graphical representation of the functions. So the code on the block diagram control the front panel objects depending on the control structure implemented. Thus, the user can build custom data acquisition, test, measurement, and control solutions for a variety of application needs. LabVIEW is integrated for communicating with various data acquisition devices such as GPIB, PXI, VXI, RS-232, RS-485 and USB based devices. And also offers internet of things using LabVEW web server and software standards like TCPIP and ActiveX. Virtual Instruments The programs in the LabVIEW are called virtual instruments or simply VIs, because the operation and appearance of the programs resemble the physical instruments such as multimeters and oscilloscopes. A VI consists three components, namely, front panel, block diagram and icon connector pane. The front panel consists of controls and indicators which serve as a user interface, and the block diagram contains the source code for the VI. The Icon and connector pane is a visual representation of the VI consisting of input and outputs. This Icon and connector pane allows the VI to be used in another VI as a subVI (a VI within another VI is called subVI). Front Panel: The figure below shows the front panel of a VI consisting of various controls and indicators. Controls in LabVIEW include knobs, dials, push buttons, numeric controls, and Boolean switches. Controls acts as input devices which passes the data to the block diagram. Indicators are output terminals of a VI, which displays the output value. Some of indicators include numeric indicators, gauge, LEDs, graphs and other displays. Indicators act as output devices which acquires the data from the block diagram and displays it. Both controls and indicators can be selected from control palette which is available only on the front panel. By a right-click anywhere on front panel, control panel will be appeared. Block Diagram The figure below shows the block diagram which accompanies the above front panel.
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