• Title/Summary/Keyword: Industrial fieldbus

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Implementation of a Fieldbus System Based on EIA-709.1 Control Network Protocol (EIA-709.1 Control Network Protocol을 이용한 필드버스 시스템 구현)

  • Park, Byoung-Wook;Kim, Jung-Sub;Lee, Chang-Hee;Kim, Jong-Bae;Lim, Kye-Young
    • Journal of Institute of Control, Robotics and Systems
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    • v.6 no.7
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    • pp.594-601
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    • 2000
  • EIA-709.1 Control Network Protocol is the basic protocol of LonWorks systems that is emerg-ing as a fieldbus device. In this paper the protocol is implemented by using VHDL with FPGA and C program on an Intel 8051 processor. The protocol from the physical layer to the network layer of EIA-709.1 is im-plemented in a hardware level,. So it decreases the load of the CPU for implementing the protocol. We verify the commercial feasibility of the hardware through the communication test with Neuron Chip. based on EIA-709.1 protocol which is used in industrial fields. The developed protocol based on FPGA becomes one of IP can be applicable to various industrial field because it is implemented by VHDL.

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Problem Analysis of Real-time Transaction and FieldBus Communication in Industrial Networks (산업기기 네트워크에서의 실시간 처리와 필드버스 통신의 문제점 분석)

  • Moon Sang-Gook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2006.05a
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    • pp.921-923
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    • 2006
  • With the success of wireless technologies in consumer electronics, standard wireless technologies are envisioned for the deployment in industrial environments as well. Industrial applications involving mobile subsystems or just the desire to save cabling make wireless technologies attractive. Nevertheless, these applications often have stringent requirements on reliability and timing. In wired environments, timing and reliability are well catered for by fieldbus systems. When wireless links are included, reliability and timing requirements are significantly more difficult to meet, due to the adverse properties of the radio channels. In this paper, we thus discuss some key issues coming up in wireless fieldbus and wireless industrial communication systems.

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Consideration of Wireless Technology in Industrial Networks (무선 통신 기술의 산업기기 응용에 대한 고찰)

  • Moon, Sang-Gook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.1
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    • pp.157-162
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    • 2007
  • With the success of wireless technologies in consumer electronics, standard wireless technologies are envisioned for the deployment in industrial environments as well. Industrial applications involving mobile subsystems or just the desire to save cabling make wireless technologies attractive. Nevertheless, these applications often have stringent requirements on reliability and timing. In wired environments, timing and reliability are well catered for by fieldbus systems. When wireless links are included, reliability and timing requirements are significantly more difficult to meet, due to the adverse properties of the radio channels. In this paper, we thus discuss some key issues coming up in wireless fieldbus and wireless industrial communication systems.

Communication Delay Properties in Performance Model of PROFIBUS Token Passing Protocol (PROFIBUS 토큰 패싱 프로토콜의 성능모델에서의 전송지연 특성)

  • Kim, Hyun-Hee;Lee, Kyung-Chang;Lee, Seok
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.10a
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    • pp.511-514
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    • 2002
  • In may automated systems such as manufacturing systems and process plants, an industrial network or fieldbus is a very important component for the exchange of various and sometimes crucial information. Some of the information has a tendency to rapidly lose its value as time elapses after its creation. Such information or data is called real-time data that includes sensor values and control commands. In order to deliver these data in time, the fieldbus network should be tailored to have short delay with respect to the individual time limit of various data. Fine-tuning the network for a given traffic requires the knowledge on the relationship between the protocol parameters such as timer values and the performance measure such as network delay. This paper presents a mathematical performance model to calculate communication delays of the Profibus FMS network when the timer value TTR and the traffic characteristics are given. The results of this model is compared to those from experiments to assess the model's validity.

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Implementation of a Fieldbus System Based on Profibus-DP Protocol (Profibus-DP 프로토콜을 이용한 필드버스 시스템 구현)

  • Bae, Gyu-Sung;Kim, Jong-Bae;Park, Byoung-Wook;Lim, Kye-Young
    • Journal of Institute of Control, Robotics and Systems
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    • v.6 no.10
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    • pp.903-910
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    • 2000
  • In this paper, we describe a slave chip based on the Profibus-DP protocol and a system board to verify the developed slave chip. The Profibus-DP protocol is designed using VHDL and implemented on FPGA. The system board adopting the developed FPGA is designed FPGA is designed in which the firmware is implemented on Intel 8051 by using C language. Among the Profibus-DP protocols, low level layers from the physical layer to the data link layer is implemented in the form of hardware that we are able to greatly reduce the CPU load in processing protocols, and then higher layers could be processed by software. These technologies result in an IP to make terminal devices in the distributed control systems. Therefore, many digital logics as well as communication logics can be implemented onto SOC(System On a Chip) and it could be applied to various fieldbus-related areas.

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Message Distributed Algorithm for Realtime System based on General Purposed Ethernet (범용 이더넷 기반 경성 실시간 시스템에서의 메시지 전송 분산 알고리즘)

  • Park, Jong-baeg;Kim, Myung-kyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.561-565
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    • 2013
  • Due to the development of industrial networks, As an alternative to traditional fieldbus, fieldbus networks move to standard Ethernet that high data throughput and scalable technology. Hence we suggest transmission algorithm which satisfied requirements for hard-real time about periodic and aperiodic message based on general-purposed ethernet, and suggest scheduling algorithm for each message.

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Application Technology Development of Lon Works Fieldbus Network System for Distributed Control System Based Water Treatment Facility

  • Hong, Won-Pyo
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2004.05a
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    • pp.404-411
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    • 2004
  • With distribution industrial control system, the use of low cost to achieve a highly reliable and safe system in real time distributed embedded application is proposed. This developed intelligent node is based on two microcontrollers, one for the execution of the application code, also as master controller for ensuring the real time control & the logic operation with CPLD and other for communication task and the easy control execution, i.e., I/O digital input, digital output and interrupting. This paper also presents where the case NCS (Networked control system) with LonTalk protocol is applied for the filtration process control system of a small water treatment plant.

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Industrial IoT Standardization Trend of the 5G Mobile Network (5G 모바일 네트워크의 Industrial IoT 표준기술 동향)

  • Kim, K.S.;Kang, Y.H.;Kim, C.K.
    • Electronics and Telecommunications Trends
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    • v.36 no.6
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    • pp.13-24
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    • 2021
  • Industrial networks has been developing various technologies from fieldbus technology to industrial Ethernet and time-sensitive networking. The industry expects that the 5G mobile network will solve the diverse and highly specific industrial site requirements. Accordingly, 3GPP has been developing standard functions to provide ultra-high reliability, ultra-high speed, ultra-connection, and ultra-low latency services, and 3GPP Rel-16 began developing ultra-low latency and ultra-high reliability communication functions for 5G mobile networks to support vertical industries. In this paper, we show the related standardization trends and requirements to apply industrial IoT service scenarios to 5G mobile networks, and in particular, we introduce 5G system features and extended 5G system architecture to provide time sensitive communication and time synchronization services.

Implementation of Simple and Intelligent Slave ASIC for Profibus-DP

  • Kwon, Dae-Hyun;Bae, Gyu-Sung;Lee, Young-Joon;Lim, Kye-Young;Moon, Jeong-Il;Kim, Jong-Bae
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.77.2-77
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    • 2001
  • Profibus-DP is the performance-optimized version of Profibus, specifically dedicated to time-critical communication between automation systems and distributed peripherals. It is included into the International Fieldbus Standard IEC 61158. In this paper, The ASIC for Profibus-DP simple and intelligent slave is proposed and implemented. It can be fully compatible with Siemens LSPM2 as a pin-to-pin base and it also has a high-level function that can replace current intelligent slave boards with one chip. Also it can be used without special OS coding unlike SPC3 of Siemens.

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