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Process control system

  • US 7,054,694 B2
  • Filed: 05/01/2002
  • Issued: 05/30/2006
  • Est. Priority Date: 05/30/2001
  • Status: Active Grant
First Claim
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1. A process control system, comprising:

  • a control unit that executes control computations using a normalized signal as an input value and outputs an operation value; and

    a monitoring unit that communicates with the control unit via a control bus, and converts the operation value output from the control unit to a physical unit value scale and displays the operation value;

    wherein the control unit includes an input data storage means for associating and storing the input value and engineering unit value scale data as structuralized data, and an operation means for receiving the structuralized data from the input data storage means and computing the operation value;

    wherein the operation means supplies the operation value and the engineering unit value scale data to a display means of the monitoring unit.

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