Execution flow is determined by the structure of a graphical block diagram (the LabVIEW-source code) on which the programmer connects different function-nodes by drawing wires. If there is enough data available to a subVI or function, that subVI or function will execute. The programming paradigm used in LabVIEW, sometimes called G, is based on data availability. NI released the free for non-commercial use LabVIEW and LabVIEW NXG Community editions on April 28th, 2020. The latest versions of LabVIEW are LabVIEW 2021 SP1 (released in February 2022) and LabVIEW NXG 5.1 (released in January 2021). The G dataflow language was originally developed by LabVIEW, LabVIEW is commonly used for data acquisition, instrument control, and industrial automation on a variety of operating systems (OSs), including Microsoft Windows as well as various versions of Unix, Linux, and macOS. The graphical language is named "G" not to be confused with G-code.
Laboratory Virtual Instrument Engineering Workbench ( LabVIEW) : 3 is a system-design platform and development environment for a visual programming language from National Instruments. Data acquisition, instrument control, test automation, analysis and signal processing, industrial control, embedded system design
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