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  • Untangle industrial network selection

    There's no universal answer for figuring out the benefits and trade-offs that enter into network selection, but here are some observations that can help automation designers.

  • 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.

  • Tuning cascade loops

    Tuning a cascade loop is simple, as long as the concepts of the cascade loop are understood. In this installment of "How Do I . . ." we take a look at a common cascade loop application.

  • Tricky level applications on the rise

    Level measurement is as old as the Nile, but some application problems simply will not go away. Editor in Chief Walt Boyes provides his thoughts on the results of the recent ControlGlobal.com Web Poll.

  • Training EPCs with whip, chair and gun

    Despite what we think, instrumentation and control is not a core component of most EPCs, but rather a necessary support service that sells the bread and butter of process and mechanical engineering.

  • Top ten signs you're an endangered species

    Why is the instrument engineer such a rare find? The answers may be in the standard dialog on the causes of endangerment. Here are the Top Ten Signs you are an Endangered Species.

  • Top 50 Automation Companies of 2004

    We polled a distinguished panel of industry experts and advisors for our annual list of the industry's Top 50 instrumentation and controls suppliers in North America. Find out who made this year's list.

  • Top 10 signs a startup has gone wrong

    Control Talk columnists Greg McMillan and Stan Weiner, PE, offer up a bit of humor regarding startups, and how Stan avoided being fired despite a recent Monday morning hangover.

  • Tools to keep your plant competetive

    This supplement from the HART Communication Foundation is loaded with useful tips on how to identify projects that provide a high ROI and significant value to your operation.

  • Tips on installing a fieldbus safety system

    Even though standards allow sharing of the physical layer for safety and control communications, Parity Check columnist Ian Verhappen doesn't feel that too many users, if any, will mix the two systems.

  • Tips for trouble-free fieldbus

    DigitalField Insider Columnist Ian Verhappen notes that the most important measure that can be taken to prevent difficulties with a given fieldbus or digital networking project is protocol communication.

  • Time after time

    Control Talk columnists Greg McMillan and Stan Weiner, PE, weigh in with answers to the January Puzzler that asked why the load cell indication would shift at high noon regardless of the time in the batch sequence.

  • 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
  • Three alternative approaches to better loop control

    What's wrong with those ramps? Well, as the performance of control loops declines over time, there are better alternatives to properly handle potential problems. Check out what to avoid when tuning your ramps.

  • There's no business in show business

    No matter how the organizers spin it, the decision to move National Manufacturing Week to the suburbs next year won’t resonate well with exhibitors, according to Industrial Networking Editor in Chief, Joe Feeley.

  • The U.S. chemical industry: R.I.P.

    Around the Loop columnist Terrence K. McMahon mourns the demise of the U.S. chemical industry, as national plants are being shuttered in ever-increasing numbers with production headed overseas.

  • The six dumbest ideas in computer security

    Marcus Ranum suggests that these dumb ideas are the fundamental reasons why all that money you spend on information security is going to be wasted, unless you somehow manage to avoid them.

  • The power of Velocity Limit (VL)

    This article argues that Velocity Limit (VL), which can be used to detect and take corrective action against faulty signals as part of an overall alarm strategy, is not being used as much as it should be.

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