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Method and apparatus for local or remote control of an instrument in a process system

  • US 9,020,619 B2
  • Filed: 04/24/2012
  • Issued: 04/28/2015
  • Est. Priority Date: 04/24/2012
  • Status: Active Grant
First Claim
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1. A process control system for controlling a process, the control system comprising:

  • a field device associated with the process and arranged to control a process condition;

    a wireless sensor associated with the process and arranged to monitor the process for the occurrence of an event trigger associated with the process condition;

    a remote control system disposed remotely from the field device, the remote control system including a first controller, a first memory, a first processor, and a first wireless communication module, the first wireless communication module coupled to the first processor and permitting wireless communication between the first controller and the wireless sensor;

    the remote control system further including a first control module stored on the first memory and coupled to the first processor, the first control module capable of being executed on the first processor to permit the first controller to place the field device at a first set-point to control the process condition;

    a local control system disposed locally relative to the field device, the local control system including a wireless output device, the wireless output device including a local controller, a local memory, a local processor, and a local wireless communication module coupled to the local processor and arranged to permit wireless communication between the local controller and the first controller;

    a local control module stored on the local memory and coupled to the local processor, the local control module capable of being executed on the local processor to permit the local controller to place the field device at a local set-point; and

    wherein the first controller is further arranged to configure the local control module to permit adjustment of the local set-point.

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