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Real-time process control simulation method and apparatus

  • US 5,752,008 A
  • Filed: 05/28/1996
  • Issued: 05/12/1998
  • Est. Priority Date: 05/28/1996
  • Status: Expired due to Term
First Claim
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1. An improved process control system comprising:

  • a first communications network utilizing a first communications protocol;

    a real-time device controller coupled to the first communications network, the real-time device controller comprising a digital processor running a first operating system and process control software, the hardware and operating system of the real-time device controller allowing the process control software to run only in a real-time mode;

    a second communications network utilizing a second communications protocol, the second communications network being coupled to the first communications network by a communications link; and

    a simulation unit coupled to the second communications network, the simulation unit comprising a digital processor running a second operating system and a version of the process control software that has been rehosted to run in conjunction with the second operating system.

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