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Chapter 1 Introduction to LabVIEW Functions Palette You use the Functions palette in the block diagram. The Functions palette contains the objects you use to program your VI, such as arithmetic, instrument I/O, file I/O, and data acquisition operations. Data Flow LabVIEW VIs follow a dataflow model for program execution. The block diagram consists of nodes such as VIs, structures, and terminals from the front panel. These nodes are connected by wires, which define the flow of data through the program. The execution of a node occurs when all its inputs are available. When a node finishes executing, it releases all its outputs to the next node in the dataflow path. 1 2 3 © National Instruments Corporation 1-7 LabVIEW QuickStart Guide
