White Papers

on 'Loop Control'

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  • First Principle Process Relationships

    First principle relationships can define process cause and effects that can lead to improved controller tuning and performance by the selection of better tuning rules and process variables for scheduling of tuning settings.

    Greg McMillan
    12/02/2014
  • OPC Tunnelling – Know Your Options

    This article will look at how tunnelling solves the issues associated with DCOM, and show you what to look for in an OPC tunnelling product.

    Bob McIlvride, Andrew Thomas, Cogent Real-Time Systems
    04/21/2014
  • ExperTune's Best Practices for Controller Tuning

    Controller tuning can be accomplished quickly and accurately using proven techniques. While many engineers and technicians resort to "tune by feel," most will admit that this approach yields inconsistent results. These best practices help to ensure that controller tuning changes from "part art, part science," to a very consistent scientific approach.

    ExperTune
    07/09/2013
  • Back to Basics: The Power of the Loop

    The current loop is probably one of the most underestimated data transmission and control method. It's so simple that we tend to ignore it in favor of more complex and sophisticated methods.

    Otek
    04/24/2013
  • Introduction to the 2-Wire Transmitter and 4-20mA Control Loop

    In this paper, we review the operation and advantages of the 4-20mA transmission standard and loop-powered transmitters. The discussion explains sink vs. source wiring, power requirements, voltage drops, proper grounding, transmission distance, signal noise, live zero calibration and more.

    Acromag
    09/24/2012
  • Don't Tune These Four Loops

    Some control loops cannot be improved by tuning. In fact, you might even make matters worse by tuning them. This white paper discusses four types of PID control loops that you absolutely should NOT tune. Download the white paper to discover how you can save time and get better results by NOT tuning.

    Expertune/PlantTriage
    05/29/2012
  • Seven Steps for Improving Control Loop Performance

    This paper outlines a systematic, seven-step approach for improving control system performance. It also describes the key points to follow for ensuring each step is implemented successfully.

    PAS
    05/02/2008
  • Using the NI 17xx Smart Camera Direct Drive Lighting Controller

    This application note discusses considerations when selecting lighting equipment and demonstrates how to utilize the Direct Drive lighting controller feature on the NI 17xx Smart Camera with LabVIEW or Vision Builder for Automated Inspection.

    National Instruments
    03/10/2008
  • Effective modeling for nonlinear control

    This paper presents simulation results comparing Extrapolating Gain-Constrained Neural Networks (EGCN) to traditional neural network training methods, as well as to the recently proposed Bounded-Derivative Network (BDN).

    02/27/2007
  • Efficiency: The forgotten feature of power supplies

    Efficiency is one of the most important features that every engineer must consider when selecting a power supply. This White Paper maintains that it is possible to use a smaller power supply because no de-rating is necessary, in most cases.

    Puls Power Supplies
    04/25/2006
  • Reducing operations and maintenance costs

    Today’s plants are under intense financial pressure. Fewer personnel are expected to operate and maintain more equipment at lower cost, while also delivering higher throughput, higher availability, and higher profits. It’s a trend that shows no sign of changing. Plants must therefore increase the productivity of their existing maintenance and operations teams, while continuing to look for ways to reduce costs even more. The following is an Executive Summary which provides an introduction to plant architecture capabilities for reducing operations and maintenance costs. To learn more about how the architecture delivers these benefits – and see what users say about the results – download the link below.

    11/09/2004
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