Articles

on 'Loop Control'

41-60 of 90 < first | | | last >
  • Playing the Field

    If Most of Loops Are Distributed to Field-Solved PID, What Are the Chances You Could “Hot Swap” Your Host Just Like a Field Device?

    05/04/2008
  • On ‘Strange’ Loops and Plant Intelligence

    Douglas Hofstadter asks in his recently published book, "I Am a Strange Loop," how anything as amorphous and mysterious as the “I” within each of our brains can exhibit any real power over the physical world.

    Keith Larson
    08/30/2007
  • Loop controllers

    Every month, Control’s editors take a specific product area, collect all the latest, significant tools we can find, and present them here to make your job easier. This month, we focus on loop controllers.

    06/04/2007
  • A Return to Single-Loop-Integrity

    Control in the field is becoming mainstream once again – just as the ISA SP50 fieldbus committee predicted it would be. CONTROL's regular contributor Dave Harrold looks at the integrity of the control loop.

    Dave Harrold
    03/19/2007
  • Talking about talking

    Columnists Greg McMillan and Stan Weiner, PE, bring their wits and more than 70 years of process control experience to bear on your questions, comments and problems in this month’s installment of Control Talk.

    12/15/2006
  • Loop gain in aluminum extrusion processes

    Process control authority Béla Lipták answers a reader's question regarding PID loops and if they can be used without having to change the loop gain when the number of pumps used is changed.

    11/07/2006
  • Tuning rule bonanza

    Control Talk columnists McMillan and Weiner say in order to get good performance, you need to measure and track the process, the controls, and the equipment under actual real-time operating conditions.

    11/07/2006
  • User-friendly advanced control

    Senior Tech Editor Dan Hebert, PE, looks at the latest advances in simulation and modeling technologies for improved loop control, including new software packages and embedded APC systems.

    10/26/2006
  • Jacket temp: Thermocouple multiplexers

    In this installment of Ask the Experts, Bela Liptak and his cadre of automation experts suggest to a reader how to tune a reactor temperature control loop for nearly all exothermic chemical reactors.

    10/14/2006
  • Intoxicating answers

    Control Talk columnists McMillan and Weiner describe the period of time between when you first take a drink and when you first recognize the effect and bypass the next round for coffee as dead time.

    08/10/2006
  • All around loop controllers

    Every month, CONTROL editors take a specific product area, collect all the latest, significant tools we can find, and present them here to make your job easier. This month, we take a look at loop controllers.

    06/12/2006
  • Loop controllers refuse to die

    The single-loop controller is alive and well and living in process automation. Find out what they are used for in this Product Roundup of loop controller devices, and maybe you can solve a problem or two.

    03/20/2006
  • Flame detector stops false alarms

    Multi-spectrum IR sensing and neural network processing is combined in one device to give automation professionals a potent new tool in protecting people and plants from dangerous flame sources.

    01/22/2006
  • Cascade control tuning

    ControlGlobal.com presents "Ask the Experts," a column moderated by noted process control authority and columnist Bela Liptak. Save yourself the hefty consulting fees by getting the answer to your question from Liptak's cadre of professional automation experts.

    12/27/2005
  • Under the hood of override control

    All the techniques for preventing reset windup of non-selected controllers will perform comparably to reset feedback if the dynamics of the various loops aren’t too dissimilar.

    12/14/2005
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