Julsereewong, Amphawan
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Preferred name
Julsereewong, Amphawan
Alternative Name
Julsereewong, A.
Main Affiliation
Email
amphawan.ju@kmitl.ac.th
4 results
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Item type:Publication, Digital fieldbus-Analog system integration for revamping projectsThis paper presents a system integration of modern digital fieldbus and traditional analog devices for revamping projects. Using temperature transmitter with Foundation Fieldbus technology and power regulator with 4-20 mA control input for temperature control based on a PID instruction of programmable logic controller (PLC) is examined as an illustrative case study. A portable plant model was designed and implemented for real hands-on training. In addition, basic network and device configurations as well as ladder logic program and graphical user interface creations are discussed. Experimental results of temperature control in the range of 40-60 °C verifying the proposed concept are also included. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Safety and availability of basic process control using foundation fieldbus with control in the field - An experimental analysis(2017-08-01); Detailed knowledge of how to balance between safety and availability for instruments is essential to successful design and implementation in fieldbus-based process control systems. The configuration correctness is crucial to actually obtain the benefits of digital fieldbus technology used. In actuality, a number of device parameters must be set to provide the required functionalities. This paper focuses on improving safety and availability for the proportional-integral-derivative (PID) and cascade control strategies using Foundation Fieldbus (FF) with control in the field. The aim of this paper is to analyze the logical behaviors of PID and cascade loops in two conflicting purposes for studying how different configuration options affect the interlocks between function blocks located in instruments as well as the initialization and fail-safe mechanisms in response to invalid measurements. For safety purpose, the interested control loops are configured to bring the process to a safe state in the presence of a fault. For availability purpose, the interested control loops are configured to keep the process running in the event of a failure. A water tank process is utilized as a case study for control loop implementations. Interactions between the status propagation and mode shedding for demonstrating the studied control loop behaviors are examined experimentally in Petri net models. In addition, the function block options for bumpless transfer and setpoint tracking are also described. The proved configuration method for proper operations in balancing the interests of safety and availability is proposed. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Design and implementation of the laboratory for foundation Fieldbus-Based industrial automation(2012-05-01); ; ; Julsereewong, PrasitThis article focuses on a design and implementation of the laboratory for education of Foundation Fieldbus-based industrial automation. A Centum VP system connected with level-control plant model via field digital network is described as an illustrative case study for configuring and commissioning fieldbus segment, defining control strategy, designing human machine interface (HMI) screen, and troubleshooting. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Communication schedule optimization of cascade control using foundation fieldbus(2016-01-01); ;