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Sensor apparatus and monitoring method of control system using detected data from sensor apparatus

  • US 20030223374A1
  • Filed: 05/21/2003
  • Published: 12/04/2003
  • Est. Priority Date: 05/30/2002
  • Status: Active Grant
First Claim
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1. A sensor apparatus for transmitting detected data through serial communications to an external, the sensor apparatus comprising:

  • an update check data output device for outputting a value that differs from a previous value at each transmission;

    an error check data calculator for calculating a value that allows to detect errors of the detected data and the update check data; and

    a transmitter for transmitting the detected data, the update check data, and the error check data in a single transmission frame.

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