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Internet object based interface for industrial controller

  • US 7,290,030 B2
  • Filed: 07/13/2001
  • Issued: 10/30/2007
  • Est. Priority Date: 07/13/2001
  • Status: Expired due to Term
First Claim
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1. An industrial control system interface comprising:

  • a first interface program executing on a remote computer to provide an interface screen for an industrial controller;

    a second interface program executing on a Web server communicating with the remote computer over the Internet and further communicating with an industrial control system controlling an industrial process through input and output data communicated with the industrial process;

    the first and second interface program execute to provide a protocol so that the first interface program discovers and instances software objects related to the input and output data and stored on the Web server;

    the first interface program uses pre-written software objects to implement the interface; and

    the protocol provides for at least one persistence instruction that preserves an instance of a software object on the Web server after cessation of a communication session between the remote computer and the Web server.

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