An Automated System for Quick Checking of NI PXI Equipment Performance With a Large Number of Signal Lines

摘要

The paper describes an automated method for testing equipment performance based on National Instruments hardware complex and software written in LabVIEW development environment. The testing is performed using a specially designed jumper-board. Its principle of operation is based on the «from-myself-to-myself» method. A description of the printed circuit board and its schematic view are presented. The developed program allows determining the breaks and short circuits of digital lines, as well as checking the voltages of their output logic levels. In addition, tests for checking analog lines and power supply channels are implemented. The algorithm of each test from the aforementioned list is described. Examples of the user interface are given, which demonstrate that information about the current state of the equipment is displayed in a visual and convenient format. The total testing time does not exceed 20 seconds. The method allows the engineer-operator to significantly save troubleshooting time on test installations.