Preview of Process Control Session

  • Elwyn Edwards
Part of the NATO Conference Series book series (NATOCS, volume 1)


The most distinctive occupational consequence of technological progress in control is, of course, the increased use of the human controller as a monitor and supervisor rather than as a continuously active element within the system. The controller’s primary task, therefore, comprises the receiving of information about the process, making the broad decisions concerning its required control parameters, and communicating these requirements to the hardware which provides the moment-to-moment control, Additionally, the operator is concerned to detect, diagnose and correct any malfunction within the system; faults may originate in the plant itself or in the automatic control system. Subsidiary duties may be concerned with the recording or transmission of data, with minor maintenance, or with tasks not directly connected with the control of the process.


SHEL Model Human Controller System Performance Assessment Workload Assessment Display Design 
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  1. Edwards, Elwyn and Lees, Frank P., 1972 Man and Computer in Process Control. (London: The Institution of Chemical Engineers).Google Scholar
  2. Lees, Frank P., 1974, Research on the Process Operator in Edwards, E. and Lees, F.P. (Eds.) The Human Operator in Process Control (London: Taylor and Francis).Google Scholar

Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • Elwyn Edwards
    • 1
  1. 1.University of TechnologyLoughboroughUK

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