on 'PLCs & PACs'

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  • Occupational therapy for the control engineer

    Can companies and technologies adapt to change in a positive manner? CONTROL Contributor Dick Morley says yes and believes that with some occupational therapy, you can survive!

  • Features and capabilities of hybrid controllers

    Is there a difference between a DCS and a hybrid control system? Bela Liptak and his cadre of automation experts suggest where to apply each technology in this installment of Ask the Experts.

  • PLC and HMI platforms

    Process control authority Bela Liptak brings in specialists from his cadre of co-authors to answer a reader's question. Find out which PLCs and HMIs they recommend to a wallboard manufacturer in West Virginia.

  • Three decades of DCS technology

    Distributed control system technology and its pioneers have had a profound effect on our profession and should be recognized, according to Around the Loop columnist Terrence K. McMahon.

    Terrence K. McMahon
  • Jimmy Neutron meets the Woz

    Dick Morley, father of the modern PLC, believes a renaissance in industry technology will be the thrust for the next several decades. Will we, the control engineering geeks, be ready for simple innovations in the Age of Invention?

  • Painting the world brighter

    A chemical batch manufacturing plant that creates finishes for automotive OEMs has improved its product quality, efficiency and reliability while saving $2 million with a control system upgrade.

  • Power supplies from China cut costs considerably

    Competitive pricing from Asian manufacturers has prompted market growth of power supplies and considerable cost cuts. CONTROL Senior Technical Editor Rich Merritt provides a Product Roundup.

  • Technocrats take the '318 patent to task

    In this DigitalField Insider web exclusive, Managing Editor Steve Kuehn reports on the Solaia patent case and how it continues to weave its costly way through the courts and U.S. industry.

  • Patent infringement case remains a tangled web

    In the April issue of CONTROL magazine, Managing Editor Steve Kuehn reports on how Solaia may have finally met its match now that it has faced off against Rockwell Automation in a U.S. patent court case.

  • Out of the barn

    This easy-to-read compilation of a series of articles by PLC inventor Dick Morley covers eight entertaining topical sections, including floor level control systems and the history of the programmable controller.

  • Advanced process control? "Think" it so!

    Humans replacing PLCs? This "special to the web" article for ponders the possibility of process operators controlling a myriad of automation control systems using only thought!

    Jeffrey R. Harrow
  • PLCs becoming PACs as MRC invents new TLA

    Senior Technical Editor Rich Merritt points out that market research companies have given up predicting the demise of programmable logic controllers in this Product Roundup from CONTROL.

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