COMMUNICATION BETWEEN ZX-24 TYPE AUTOMATIC REAGENT FEEDER AND INDUSTRIAL PROCESS CONTROL COMPUTER
           
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KeyWord:Serial port Computer Reagent feeder,
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Abstract:
      In this paper, hardware and software for the communication betweem ZX-24 type automatic reagent feeder and industrial process control PC-IPC610 were introduced. This system adopts standard serial port RS-422 as the hardware interface, the maximum communication distance reaches 1200m. Visual Basic For Windows adopted. makes the communication more stable and reliable as well as the user's interface more convenient. Some fault tolerant techniques make the communication more effective as well with rather simple hardware.
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