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Display system for a supervisory control system

  • US 4,326,264 A
  • Filed: 12/04/1978
  • Issued: 04/20/1982
  • Est. Priority Date: 06/20/1977
  • Status: Expired due to Term
First Claim
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1. A display system for a supervisory system having a plurality of stations that provide respective status signals, the display system comprising:

  • a predetermined number of display elements;

    a plurality of memory elements connected to the plurality of stations and to the display elements for receiving and storing the status signals in words and transmitting the status signals to the display elements;

    means for providing a train of first clock pulses;

    first counting means connected to the means for providing a train of first clock pulses;

    an enable source connected to the first counting means to apply an enable signal to the first counting means to cause the first counting means to count a predetermined number of first clock pulses in successive words and provide a first output pulse for each of the words; and

    second counting means connected to the first counting means, to the enable source, and to the plurality of memory elements, the second counting means responsive to the enable signal for counting a predetermined number of the first output pulses and providing a second output pulse to the plurality of memory elements to direct storage of the status signals in the memory elements.

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