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Proxied web access for control devices on industrial control systems

  • US 20020156838A1
  • Filed: 09/28/2001
  • Published: 10/24/2002
  • Est. Priority Date: 04/20/2001
  • Status: Active Grant
First Claim
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1. An industrial control system for controlling an industrial process comprising:

  • a plurality of control devices providing control signals to direct the industrial process, wherein each of the control devices includes web page data concerning a respective web page associated with the respective control device;

    a web access module including a web server, an Internet interface and a control network interface, wherein the Internet interface is capable of being coupled to a remote device via the Internet, and wherein the control network interface is coupled to the plurality of control devices;

    wherein the web access module is capable of receiving requests from the remote device to access any of the web pages associated with the plurality of control devices; and

    wherein, in response to receiving the requests, the web access module obtains the web page data concerning the web pages for which access has been requested, processes the web page data at the web server, and sends data signals related to the web page data onto the Internet to be received by the remote device.

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