Articles

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  • Make the most of HART-enabled field devices

    HART-enabled field devices offer many benefits and not just for process control. They can lead to productivity gains, maintenance savings and more efficient and accurate recordkeeping.

    Dan Prugar, Meriam Process Technologies
    08/11/2005
  • HART has staying power

    Despite the appearance of digital fieldbus technology in plants, well-proven HART technology still has a viable long-term role, notes Ed Ladd of the HART Communication Foundation. He adds that industry consultants predict that HART easily will be supported and remain a significant communications technology for the next 20+ years.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    07/13/2005
  • Process Engineering: HART Offers Value in Plant Control Systems

    There's a myth in plants that HART offers little for Plant Control Systems and Enterprise Level Networks. But Ed Ladd from the HART Communication Foundation writes that by accessing the data in HART devices on a "full-time" routine basis increases performance, integrity, and reliability of plant control and enterprise level systems.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    05/11/2005
  • Process engineering: Dryer provides a concrete lesson in control

    Removing water or moisture from a liquid stream is a critical operation in many processes. Liquid stream dryers commonly contain either molecular sieves or adsorbents; during the last 20 years, the use of molecular sieves has become much more common.

    Andrew Sloley, contributing editor, and Richard Readshaw, senior staff process engineer for VECO USA Inc.
    05/03/2005
  • Process Engineering: HART – Dealing with device description

    There is a myth surrounding HART devices that you'll need a device description to communicate with a HART device. Learn why this isn't true and what you do need to know in operating a HART communication device.

    Ed T. Ladd, Jr.
    04/12/2005
  • Process engineering: Doing your level best

    Plant engineers who find it is difficult to get good level measurements have plenty of company. A recent poll shows that it is considered to be one of the two most vexing problems by process automation professionals.

    04/08/2005
  • Chemical research gets a new look

    Editor at large Nick Basta looks at what the chemical industry can do to re-invigorate its technological research. He says technology pioneered in the pharmaceutical industry promises broad benefits.

    03/11/2005
  • Process engineering: In the trenches of Fieldbus War II

    Like the 20th Century’s Great Conflict, the first Fieldbus War never really ended. But what will the outcome be this time? This article from CONTROL makes an educated prediction on how the battle may turn out.

    03/10/2005
  • HART Devices - Dispelling the Myths

    Myths and misconceptions surround the HART Communication technology despite being in use for as many as 15 years in some places. This article dispels those myths and highlights the benefits of HART.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    03/10/2005
  • Process Engineering: Measure problems on a higher level

    A reader has a level measurement problem with a differential pressure level transmitter. The transmitter does not track the level properly. Check out the question and the in-depth answer in this contribution from ControlGlobal.com.

    03/03/2005
  • Automation & IT: Making a HART connection

    This article is the first in a series of web-exclusive items designed to increase your knowledge about the HART Field Communications Protocol. Read here to find out the benefits of using HART Communication.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    02/10/2005
  • Process Engineering: Looking for good data?

    Are you experiencing problems with measurement uncertainty and are often left with poor data? Let Dr. Gooddata help you develop objective numerical tests for good data.

    Ronald H. Dieck, Ron Dieck Associates Inc.
    02/04/2005
  • Process engineering: Doing your level best

    Level measurement can be a simple issue with numerous solutions.  Measuring the height of the material in a vessel is merely an interface issue that can be resolved in a variety of ways.

    01/21/2005
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