Signol, F. P.

Paper	Title	Page
MOB002	Status Report of the LMJ (Laser Mégajoule) Control System	1
	J. J. Dupas, J. I. Nicoloso CEA, Arpajon J. C. Picon, F. P. Signol CESTA, Le Barp
	The French Commissariat à l'Énergie Atomique (CEA) is currently building the Laser MegaJoule (LMJ), a 240-beam laser facility, at the CEA Laboratory CESTA near Bordeaux. It is designed to deliver about 2 MJ of energy to targets for high energy density physics experiments, including fusion experiments. LMJ technological choices were validated with the LIL, a scale 1 prototype of one LMJ bundle. The construction of the LMJ building itself is now achieved and the assembly of laser components is on-going. The presentation gives an overview of the control system architecture and focuses on the way it was divided between the dozen of contractors involved in the LMJ design. We will discuss also how we tried to preserve system consistency by developing a common framework shared by the different contractors. This framework is based on the PANORAMA ·102 industrial SCADA and includes WCF technology for subsystems communication. It is intended to integrate all the common components and rules for configuring, controlling and operating a large facility, so that developers has only to concentrate on process specific tasks.
	Slides
MOC002	Strategy for the Integration of the LMJ (Laser Megajoule) Control System	16
	F. P. Signol, J. C. Picon CESTA, Le Barp P. J. Betremieux, J. J. Dupas, J. I. Nicoloso CEA, Arpajon
	The French CEA (Commissariat à l'Énergie Atomique) is currently building the LMJ (Laser MégaJoule), at the CEA Laboratory CESTA near Bordeaux. The LMJ is designed to deliver about 1.8 MJ of 0.35 0m light to targets for high energy density physics experiments. CEA has imposed an industrial policy by dividing the LMJ development and construction into a dozen major contracts. Each of these contracts supplies the hardware (e.g. Capacitor bank) and the associated control System. CEA is the project manager of the centralized supervisor and the communication protocols between the several subsystems. CEA is also responsible for the integration of the subsystems which is a major challenge. This presentation discusses the integration strategy. It is a three step process, each taking place in a different site: factory acceptance tests at the subsystem level, Integration tests of the whole control system on a dedicated 'Integration Platform', and finally on site tests from an 'integration control room' (which is different from the operation control). This paper will describe the necessary integration and simulation tools and the tasks related to the three steps.
	Slides
WEP001	Configuration and Sequencing Tools for the LMJ Control System	409
	J. I. Nicoloso, J. J. Dupas CEA, Arpajon J. C. Picon, F. P. Signol CESTA, Le Barp
	This presentation describes two of the main functions of the common framework which underlies the Laser MegaJoule (LMJ) supervisory software: configuration and sequencing. The configuration manager allows creating a model of the system under control, and making it available for the different parts of the command-control software. The system is described as a hierarchy of objects linked by different types of relationships, which are used by the command-control software to propagate events, alarms, states and actions. The model acts also as a centralised repository for all of the parameters and characterisation data needed to control the process. Concerning sequencing, it is one of the major functions used to operate the LMJ facility. Specialized software tools were designed to develop and execute the programs that schedule the hundreds of actions needed to perform shot sequences. Sequence programs are described as state machines and VB scripts which are then embedded into the PANORAMA supervisory software that executes them in a distributed manner. Objects, properties and functions of the PANORAMA applications are made available from the scripts through specialized API.