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Author: search.filters.author.Thepmanee, TeerawatSubject: search.filters.subject.PLC

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    Implementation of control and SCADA system: Case study of Allen Bradley PLC by using WirelessHART to temperature control and device diagnostic
    (2022-04-01)
    Thepmanee, Teerawat
    ;
    Pongswatd, Sawai
    ;
    Asadi, Farzin
    ;
    Ukakimaparn, Prapart
    System integration for process automation promoted the technologies that were accessed to functions and data of field device, controller, and SCADA system. In addition, the data from filed devices can apply to solve device diagnostic and preventive maintenance. This paper describes the practical technique to configure and implement of control and SCADA system that focus on integration of field device, PLC controller, and SCADA system. The paper presents case study of Allen-Bradley (AB) PLC by using WirelessHART device to temperature control and device diagnostic through SCADA system. PLC's input/output (I/O) modules are installed that consists of Modbus module, digital I/O module, analog I/O module. In addition, Prosoft configuration builder and Studio 5000 software are new software to build add on Modbus instruction and ladder diagrams, respectively. The experiments perform in case study of temperature control by using Proportional–Integral–Derivative (PID) function in the AB PLC. Wonderware InTouch SCADA software is implemented to monitor the process mimic, trend, and alarm. Moreover, the technique can support the operators and engineers to make decision for process control and devices diagnostic.
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    Wincc-based process simulation for virtual commissioning of scada system integration
    (2020-01-01)
    Thepmanee, Teerawat
    ;
    Tantaweenulak, Adisak
    ;
    Smerpitak, Krit
    In order to provide possibility for system integrators to verify the correctness and effectiveness of functions of a supervisory control and data acquisition (SCADA) system before on-site installation and actual commissioning, this paper presents a process simulation based on software-in-the-loop technique by using VBScript in WinCC for virtual commissioning. Design of integrating an existing control loop in water tank process of pharmaceutical manufacturing plant into a new SCADA is used as a case study. The interested process, which consists of inlet water pump, inlet control valve, level transmitter, and outlet water pump, is controlled by proportional-integral-derivative (PID) algorithm in a programmable logic controller (PLC) to maintain hydrostatic pressure in the water tank. Operations of the simulated process can be controlled in either manual mode or automatic mode. Moreover, the proposed simulation provides an option to imitate device failures that could not be done in real process due to damages for ensuring SCADA fault notification based on failure modes and effects analysis (FMEA). Experimental results of using the proposed process simulation for testing whether the created human machine interface (HMI) screens of the SCADA system integration fulfill functional design specifications are also included.
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    Multi-PLC control system based on wireless bridge/base stations for work-in-process movements in corrugated box manufacturer
    (2018-12-10)
    Smerpitak, Krit
    ;
    Jearnpanitpong, Woravut
    ;
    Julsereewong, Amphawan
    ;
    Thepmanee, Teerawat
    This paper presents a practical technique to design and implement a cooperative control of two groups with three conveyors and two rail guided vehicles (RGVs) by using two master and two slave programmable logic controllers (PLCs), respectively. The controlled conveyors and RGVs are utilized for work-in-process (WIP) movements between a corrugator and six printing machines in a manufacturer of corrugated paper boxes. The proposed technique is based on the use of wireless bridge/base stations modeled Ubiquiti Rocket M5 and Loco M5 for interconnections of two master PLCs modeled Omron CJ2M-CPU31, two slave PLCs modeled Omron CP1L-M40DT-D and connected with Omron CP1W-EIP61 module, and a host application over a control network to communicate with each other through EtherNet/IP technology. Input and output devices of each controlled subsystem are hardwired to each PLC. The transmission and reception schemes to enable real-time input/output data exchanges between the PLCs are specified with tag names for cyclic communications on data links. The proposed multi-PLC control system for WIP movements can operate in accordance with the manufacturer’s requirements.
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    Using wired hart and wirelesshart together for PLC and SCADA system
    (2015-01-01)
    Thepmanee, Teerawat
    ;
    Pongswatd, Sawai
    ;
    Kummool, Sart
    ;
    Subpayasomboon, Siramet
    Wireless Technology has promoted in the process automation because it does not require power and communication wiring for field instruments that enables reduced engineering cost. At the same time, end-users consider the developments of process automation by using wireless devices due to the growing of the new plants and replacing analog or wired HART plants. The paper presents a technique to modify wired HART device to be WirelessHART device and to configure it for communication with other WirelessHART devices. A PLC (Programmable Logic Controller) and SCADA system is used to provide centralized device information, historian, and HMI. Installation and configuration techniques of wired HART, THUM adapter or repeater, WirelessHART, HART gateway are described. In addition, engineering and SCADA software are assigned based on OPC to share WirelessHART data with gateway, PLC and SCADA system. The experimental results by using S7-300 Siemens PLC, WW InTouch, and HART devices in level process control are included to confirm the system workability. Moreover, the technique could be applied to collect data for end-user support to quickly and easily gain the benefits of device diagnostic and to decide the plant operation and planning.
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    S7 PLC-based foundation Fieldbus control system using STEP7 and RSFieldbus configuration tools
    (2014-02-04)
    Thepmanee, Teerawat
    ;
    Pongswatd, Sawai
    ;
    Phaerueang, Sarawut
    This paper presents a technique to configure Foundation Fieldbus devices for process control. The technique applies Foundation Fieldbus (FF) function blocks to cooperate with User-blocks of Siemens PLC. Function Block (FB), Function Call (FC), Data Block (DB) of PLC and FF function blocks are applied to create the assigned control program. In addition, S7 hardware, STEP7 Software, HMI, and OPC are described for hardware configuration, monitoring, diagnostics, and network configuration. The experiment indicates that proposed technique can implement the monitoring and controlling of Foundation Fieldbus Control System (FFCS) with S7 PLC. Moreover, the technique will support end-user to confirm the interoperability concept which avails for low maintenance cost and enhance data available from the field devices. © 2014 ICIC International.