With the technological means of testing the continuous development of various measuring instruments already from the initial development of the digital display of the entire Chinese LCD screen, hand-copied from the initial survey results to develop its own mini-printers, so far, in various Measurement of instrumentation, large or small, has a print subsystem, the printer has become a print measurement results and the achievement of an important tool for man-machine dialogue.
Papers on a miniature printer of the PLC, the PLC-based system designed instrumentation printing system. Test equipment and is based on the design of Matsushita (Fpsigma-c32) PLC, DR series of mini-printers (Impact), and the spring servo motor torque and fatigue testing systems, as long as the spring under test installed on Taiwan to test torque and fatigue test. After the test, the system can record the test parameters, and, ultimately experimental data and print out the results. The experimental design integration in the spring torque and fatigue test system designed experiment, using a touch screen as a human-computer interface, through the touch-screen printing operation.
Key words :spring torque, fatigue testing, PLC, mini-printers,
