National Instruments NI 7831R User Manual

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National Instruments NI 7831R User Manual Manual pdf 7 page image

© National Instruments Corporation vii NI 7831R User ManualAbout This ManualThis manual describes the electrical and mechanical aspects of theNational Instruments 7831R device and contains information concerningits operation and programming.The NI 7831R device is a Reconfigurable I/O (RIO) device. The NI 7831Rhas eight independent, 16-bit analog input (AI) channels, eightindependent, 16-bit analog output (AO) channels, and 96 digital I/O (DIO)lines.ConventionsThe following conventions appear in this manual:<> Angle brackets that contain numbers separated by an ellipsis represent arange of values associated with a bit or signal name—for example,DIO<3..0>.» The » symbol leads you through nested menu items and dialog box optionsto a final action. The sequence File»Page Setup»Options directs you topull down the File menu, select the Page Setup item, and select Optionsfrom the last dialog box.This icon denotes a note, which alerts you to important information.This icon denotes a caution, which advises you of precautions to take toavoid injury, data loss, or a system crash. When this symbol is marked onthe device, refer to the Safety Information section of Chapter 1,Introduction, for precautions to take.bold Bold text denotes items that you must select or click in the software, suchas menu items and dialog box options. Bold text also denotes parameternames and hardware labels.italic Italic text denotes variables, emphasis, a cross reference, or an introductionto a key concept. This font also denotes text that is a placeholder for a wordor value that you must supply.monospace Text in this font denotes text or characters that you should enter from thekeyboard, sections of code, programming examples, and syntax examples.This font is also used for the proper names of disk drives, paths, directories,