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Transparent support of remote I/O in a process control system

  • US 6,711,629 B1
  • Filed: 10/18/1999
  • Issued: 03/23/2004
  • Est. Priority Date: 10/18/1999
  • Status: Expired due to Term
First Claim
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1. A method of configuring a communication link for use in a distributed process control system having a controller, a first remote I/O interface communicatively coupled to the controller and a remote I/O communication link, a second remote I/O interface communicatively coupled to the remote I/O communication link, and an I/O device communicatively coupled to the second remote I/O interface, the method comprising the steps of:

  • specifying a connection between the controller and the I/O device, wherein specifying the connection includes receiving an input from a user through a graphical user interface;

    recognizing that the connection between the controller and the I/O device requires communications over the remote I/O communication link;

    automatically generating a first communication object based on the connection between the controller and the I/O device that automatically routes communications between the controller and the remote I/O communication link and that receives communications having a first signal protocol and converts the communications to a second signal protocol; and

    automatically generating a second communication object based on the connection between the controller and the I/O device that automatically routes communications between the remote I/O communication link and the I/O device.

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