Articles

281-300 of 365 < first | | | last >
  • Fieldbus improves control system reliability

    Profibus-PA and Foundation Fieldbus both reduce cabling cost by sharing wiring among several field instruments. They also save money by reducing the number of instrument interface cards required to connect field instruments to the control system. However, they all save money by being able to use the same field transmitter for a wide range of measured variables.

    Dick Caro
    09/11/2006
  • The rise and fall of modulation

    Why have reciprocating designs fallen out of favor relative to the rotary compressor that is so predominant today? Read about the evolution of efficient controls for compressed air systems.

    Henry Kemp
    09/11/2006
  • HMIs evolve in process control

    New HMI technology is putting a whole new (inter)face on how operators view control systems information, while at the same time driving human error out of systems and improving safe work practices.

    Ian Nimmo, president, User Centered Design Services LLC
    09/11/2006
  • Innovations in batching, dosing and weighing

    Challenges brought on by new regulations and technical problems for batching, dosing and weighing have pushed users to find some innovative and surprising solutions beyond our own industry.

    09/05/2006
  • How to select control valves, Part 1

    When it comes to selecting and sizing control valves, the non-commercial chart in this article not only helps you pick the right one for the job, but also serves as a reference tool you can download.

    Béla Lipták, PE, CONTROL Columnist
    08/15/2006
  • Try before you buy

    There is another side to toll processing. It involves the companies that arguably have the best possible know-how and hardware — for the simple reason that they are the equipment manufacturers themselves, offering toll processing services that utilize their own products.

    Mike Spear, editor at large
    07/24/2006
  • Control your maintenance

    Automation systems have now reached such a high degree of reliability that many personnel at plants now take them for granted. Learn to use digital communication with your asset management tools to achieve predictive maintenance and substantial savings.

    Ian Verhappen, MTL Instruments Group
    07/12/2006
  • BP tackles Texas City failings

    British Petroleum's tragic March 2005 explosion has been well-documented through the press. Read here to find out how that tragedy spurred the development of a new program addressing management issues at BP.

    Foster Finley and Karl Roberts, AlixPartners
    04/12/2006
  • Hard lessons worth sharing

    Editor-in-Chief Mark Rosenzweig writes that the causes of two incidents should get attention from other processors.

    Mark Rosenzweig
    01/24/2006
  • Distillation control and optimization, Part 1

    Control columnist Bela Liptak describes the distillation process and PID-based controls, reviews optimization strategies, and shows how advanced controls can cut operating costs of distillation.

    Béla Lipták, PE, Control Columnist
    01/11/2006
  • 10 principles for securing control systems

    KEMA Consultant Jay Abshier takes an unbiased and highly detailed look at where plant security really is, and what is being done to better protect our process automation systems and infrastructure. Print page Email page 10 principles for securing control systems KEMA Consultant Jay Abshier takes an unbiased and highly detailed look at where plant security really is, and what is being done to better protect our process automation systems and infrastructure.

    10/25/2005
  • Fieldbus Wars continue: EDDL vs. FDT/DTM

    Fieldbus technology expert Dick Caro predicts that as Ethernet-based control networks converge into the domain of fieldbus, there will eventually be a conflict between OPC/DX, FDT/DTM, and EDDL.

    10/12/2005
  • Don’t let phase changes faze you

    Phase changes in the downstream processing or handling of solids cause many process problems that have inexpensive solutions.

    Tom Blackwood, Healthsite Associates LLC
    10/04/2005
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