2013

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  • 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
  • Migration is the Key to Upgrade Legacy RS-485 Serial Infrastructure to Ethernet/IP Networks

    In this paper, we introduce Ethernet over RS-485™, a new approach to the modernization of industrial automation and distributed control networks, and describe how it can be rapidly, reliably and securely deployed to cost-effectively transform an existing legacy RS-485-based industrial network infrastructure into one that can support IP-enabled devices while still supporting existing RS-485 networks and ensuring a managed migration to the cloud using existing paid-for infrastructure.

    PCN
    08/26/2013
  • Building a Bridge to Safety

    This paper examines the benefits and shortfalls of both safety PLCs and configurable safety relays. It also examines a new way of handling safety in industrial automation, "SafetyBridge" technology.

    Phoenix Contact
    01/02/2013
  • Hacking the Industrial Network

    Industrial control networks are highly vulnerable to intelligent remote attacks, as well as non-intelligent viruses. With threats to these networks increasing in complexity and scope, decision makers need to take action before it's too late.

    Phoenix Contact
    01/04/2013
  • Rockwell Automation - Enabling the Connected Enterprise

    Download now to read 25 articles highlighting the Process Solutions User Group meeting, CEO Keith Nosbusch's state of the industry address, Automation Fair exhibit floor highlights, and Industry Forum presentations. Download now -- no registration required.

    Rockwell Automation
    12/20/2013
  • Securing Your Automation Ethernet Network

    This paper covers the importance of securing automation devices for access internally on an Intranet, or externally over the Internet. Choosing an Ethernet Fieldbus offers the competitive advantage of speed, flexibility and accessibility though steps should be taken to secure automation devices and any associated programming workstations and servers. This paper seeks to educate the Controls Engineer on security strategies, technologies and options available.

    Schneider Electric
    02/13/2013
  • Discussion of Flowmeter Accuracy Specifications

    Understanding the accuracy of a given flowmeter is an important field but it can also be misleading as different specifications are used to explain how accurate a flowmeter measurement actually measures. This paper discusses the different specifications and interprets the impact of them.

    Why deal with accuracy?

    The reasons for dealing with flowmeter accuracy specifications are many-folded. One important reason is from an economical point of view. The more accurate a flowmeter can measure, the more money you will save as the medium is measured with only very little inaccurately.

    Another reason is in terms of dosing, where a given amount of a medium is added. This must be done with a high level of precision and the accuracy is thus important in order to dose correctly. This is critical in certain industries such as in pharma or chemical.

    A third reason is in terms of billing purposes. By performing with good accuracy, you know exactly how much fluid flows into the process. Thereby, you are able to determine the right price of the product and thereby bill the customers correctly.

    Therefore, knowing how much that flows through your system is paramount in order to make a profitable and solid business. You need to rely on a precise measurement with good accuracy. However, good accuracy must be obtained not only in one measurement, but in all measurements independent of the time.

    Siemens
    01/21/2013
  • Know Your TCO: A Look at Medium-Voltage VFDs

    In this white paper, we analyze what factors contribute to TCO (total cost of ownership) of a drive, how to calculate the NPV (net present value), explain the inverse relationship between reliability and TCO and how longevity of product and customer service and support affect TCO.

    Siemens
    10/28/2013
  • Finding, Measuring and Closing Safety Integrity Gaps

    Plant safety is at or very near the top of almost every manufacturer's operating priority list, often with a stated goal of zero incidents or accidents.

    Steve J. Elliott, Product Director, Invensys Triconex
    06/13/2013
  • Instrumentation for Produced Water Applications

    Produced water refers to any water brought up to the surface during oil and gas production, typically as the result of drilling, exploration and hydraulic fracturing. Before disposing or reusing the water, it must be treated to extract hydrocarbons and satisfy environmental code regulations.

    Steven Smith, Endress+Hauser
    04/16/2013
  • Types of Pressure: When and Why Are They Used

    Without measurement there is no control. As with any type of measurement, results need to be expressed in a defined and clear way to allow everyone to interpret and apply those results correctly. Accurate measurements and good measurement practices are essential in industrial automation and process environments, as they have a direct effect on the success of the desired outcome. Pressure, the measure of a force on a specified area, is a straightforward concept, however, depending on the application, there are many different ways of interpreting the force measurement. This white paper will identify the various units of pressure measurement, while discussing when and why certain pressure measurements are used in specific applications.

    Turck
    07/10/2013
  • Wireless Technology in Industrial Automation

    The use of wireless technology in industrial automation systems offers a number of potential benefits, from the obvious cost reduction brought about by the elimination of wiring to the availability of better plant information, improved productivity and better asset management.

    Yokogawa
    05/15/2013
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