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)