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    Item type:Publication,
    Using fieldbus physical layer diagnostics in maintenance practice
    (2013-02-15) ; ;
    Julsereewong, Prasit
    ;
    Mekkrajai, Nukool
    An availability of valuable physical layer diagnostic information in maintenance practice is presented in this article. Establishing an effective and efficient maintenance capability for Foundation Fieldbus segments installed at the Tail Gas Treating Unit, IRPC Public Company Limited, Thailand is described as an illustrative case study. Diagnostic-driven maintenance strategy not only reduces fixed and variable maintenance costs but also extends useful asset life by reducing the interval between maintenance events, reducing the cost of failures, and making it easier to plan maintenance and service work. © 2013 ICIC International.
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    Item type:Publication,
    Replacement of existing analog with digital fieldbus: A case study of raw cane sugar production
    (2013-03-28) ; ;
    Julsereewong, Prasit
    ;
    Jetanacheawchankij, Chaiwat
    This article focuses on a digital fieldbus replacement for existing analog communications to bring automation infrastructure for operational excellence. Economic analysis between conventional and Foundation Fieldbus systems for new instrumentation and control installations in a raw cane sugar production is described as an illustrative case study. Surpassing the traditional analog system during project implementation, the digital fieldbus provides saving in material, installation, and commissioning costs. The studied case can be applied as a useful tool that can support planning and decision making for any small or large upcoming projects. © 2013 ICIC International.