A versatile trigger and synchronization module with IEEE1588 capabilities and EPICS support.

López Navarro, Juan Manuel and Ruiz González, Mariano and Borrego, J. and Arcas Castro, Guillermo de and Barrera Lopez de Turiso, Eduardo and Vega, Jesús (2010). A versatile trigger and synchronization module with IEEE1588 capabilities and EPICS support.. "Fusion Engineering and Design", v. 85 (n. 3-4); pp. 340-344. ISSN 0920-3796. https://doi.org/10.1016/j.fusengdes.2010.04.021.

Description

Title: A versatile trigger and synchronization module with IEEE1588 capabilities and EPICS support.
Author/s:
  • López Navarro, Juan Manuel
  • Ruiz González, Mariano
  • Borrego, J.
  • Arcas Castro, Guillermo de
  • Barrera Lopez de Turiso, Eduardo
  • Vega, Jesús
Item Type: Article
Título de Revista/Publicación: Fusion Engineering and Design
Date: March 2010
ISSN: 0920-3796
Volume: 85
Subjects:
Freetext Keywords: Data acquisition; EPICS; IEEE1588; Real time data; Processing protocol time precision
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Sistemas Electrónicos y de Control [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Event timing and synchronization are two key aspects to improve in the implementation of distributed data acquisition (dDAQ) systems such as the ones used in fusion experiments. It is also of great importance the integration of dDAQ in control and measurement networks. This paper analyzes the applicability of the IEEE1588 and EPICS standards to solve these problems, and presents a hardware module implementation based in both of them that allow adding these functionalities to any DAQ. The IEEE1588 standard facilitates the integration of event timing and synchronization mechanisms in distributed data acquisition systems based on IEEE 803.3 (Ethernet). An optimal implementation of such system requires the use of network interface devices which include specific hardware resources devoted to the IEE1588 functionalities. Unfortunately, this is not the approach followed in most of the large number of applications available nowadays. Therefore, most solutions are based in software and use standard hardware network interfaces. This paper presents the development of a hardware module (GI2E) with IEEE1588 capabilities which includes USB, RS232, RS485 and CAN interfaces. This permits to integrate any DAQ element that uses these interfaces in dDAQ systems in an efficient and simple way. The module has been developed with Motorola's Coldfire MCF5234 processor and National Semiconductors's PHY DP83640T, providing it with the possibility to implement the PTP protocol of IEEE1588 by hardware, and therefore increasing its performance over other implementations based in software. To facilitate the integration of the dDAQ system in control and measurement networks the module includes a basic Input/Output Controller (IOC) functionality of the Experimental Physics and Industrial Control System (EPICS) architecture. The paper discusses the implementation details of this module and presents its applications in advanced dDAQ applications in the fusion community.

More information

Item ID: 7292
DC Identifier: http://oa.upm.es/7292/
OAI Identifier: oai:oa.upm.es:7292
DOI: 10.1016/j.fusengdes.2010.04.021
Official URL: http://www.sciencedirect.com
Deposited by: Memoria Investigacion
Deposited on: 10 Jun 2011 11:06
Last Modified: 20 Apr 2016 16:28
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