Author: Sicard, C.H.
Paper Title Page
S11LLC01 Replacing PS Controls Front End Minicomputers by VME Based 32-bit Processors 375
 
  • A.G. Gagnaire, Ch. Serre, C.H. Sicard, N. de Metz-Noblat
    CERN, Geneva, Switzerland
 
  The PS controls have started the first phase of system rejuvenation, targeted towards the LEP Preinjector Controls. The main impact of this phase is in the architectural change, as both the front-end minicomputers and the CAMAC embedded microprocessors are replaced by microprocessor based VME crates called Device Stub Controllers (DSC). This paper discusses the different steps planned for this first phase, i.e: - implementing the basic set of CERN Accelerator common facilities for DSCs (error handling, system surveillance, remote boot and network access); - porting the equipment access software layer; ¿ applying the Real-time tasks to the LynxOS operating system and J/O architecture, conforming to the real-time constraints for control and acquisition; - defining the number and contents of the different DSC needed, according to geographical and cpu-load constraints; - providing the general services outside the DSC crates (file servers, data-base services); - emulating the current Console programs onto the new workstations.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC01  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
S15CSE01 CASE in CERN’s Accelerator Sector 528
 
  • A. Daneels, A. Albrecht, A. Cabas-Alonso, F. Chevrier, Ch. Delamare, G. Ferran, S. Foffano, P. Heymans, D. Manglunki, Y. Marti, J.P. Matheys, D.P. Missiaen, G. Moorhead, O. Novakov, T. Pettersson, J. Poole, M. Pozzato, J.-P. Quesnel, S. Santiago, J. Schinzel, N. Segura-Chinchilla, C.H. Sicard
    CERN, Geneva, Switzerland
 
  As in the software industry where computer aided software engineering (CASE) methodologies and tools are commonly used, CERN endeavours to introduce this technology to improve the efficiency of designing, producing and maintaining software. A large project is currently under development in the administrative area whereas a dedicated group has been set up to evaluate state of the art techniques for software development relating to physics experiments. A similar activity, though on a smaller scale, has been initiated in the accelerator sector also in view of the large amount of software that will be required by the LEP200 and the LHC projects. This paper briefly describes this technology and gives an account of current experience with the use of CASE methods and tools for technical projects in the accelerator sector at CERN.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S15CSE01  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)