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Distributed control system

  • US 20070021847A1
  • Filed: 02/15/2006
  • Published: 01/25/2007
  • Est. Priority Date: 07/22/2005
  • Status: Abandoned Application
First Claim
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1. A distributed control system with a plurality of controllers connected to a network, each of the controllers including an input/output device, a memory device, a CPU, and a communications device, and executing a plurality of tasks in a distributed condition, wherein, between a first controller and second controller connected to the network, the first controller performs the functions of:

  • entering data from the input device into a memory area;

    conducting arithmetic operations on a control task by using internal data of the memory device;

    outputting arithmetic results to an output device;

    transferring the context that includes, in addition to the internal data of the memory device, general-purpose register information, status register information, and other information, to the second controller; and

    storing into the memory device the data transferred from the second controller; and

    the second controller performs the functions of;

    memorizing the data transferred from the first controller;

    conducting arithmetic operations on another control task by using data of the memory device; and

    transferring arithmetic results to the first controller.

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