Author: Riva, M.
Paper Title Page
TUPHA195 ESPRESSO Instrument Control Electronics and Software: Final Phases Before the Installation in Chile 891
 
  • V. Baldini, G. Calderone, R. Cirami, I. Coretti, S. Cristiani, P. Di Marcantonio
    INAF-OAT, Trieste, Italy
  • D. Mégevand
    Université de Genève, Observatoire Astronomique, Versoix, Switzerland
  • M. Riva
    INAF-Osservatorio Astronomico di Brera, Merate, Italy
  
  ESPRESSO, the Echelle SPec­tro­graph for Rocky Ex­o­planet and Sta­ble Spec­tro­scopic Ob­ser­va­tions, is un­der­go­ing the final test­ing phases be­fore being shipped to Chile and in­stalled in the Com­bined Coudé Lab­o­ra­tory (CCL) at the ESO Very Large Tele­scope site. The in­te­gra­tion of the in­stru­ment takes place at the As­tro­nom­i­cal Ob­ser­va­tory of Geneva. It in­cludes the full tests of the In­stru­ment Con­trol Elec­tron­ics (ICE) and In­stru­ment Con­trol Soft­ware (ICS), de­signed and de­vel­oped at the INAF-As­tro­nom­i­cal Ob­ser­va­tory of Tri­este. ESPRESSO is the first ESO-VLT per­ma­nent in­stru­ment which elec­tron­ics is based on Beck­hoff PLCs. Two PLC CPUs shares all the work­load of the ESPRESSO func­tions and through the OPC-UA pro­to­col the PLC com­mu­ni­cates with the in­stru­ment con­trol soft­ware based on VLT con­trol soft­ware pack­age. In this phase all the de­vices and sub­sys­tems of ESPRESSO are in­stalled, con­nected to­gether and ver­i­fied, mim­ic­k­ing the final work­ing con­di­tions in Chile. This paper will sum­ma­rize the fea­tures of the ESPRESSO con­trol sys­tem, the tests per­formed dur­ing the in­te­gra­tion in Eu­rope and the main per­for­mance ob­tained be­fore the in­te­gra­tion of the whole in­stru­ment "on sky" in South Amer­ica.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA195  
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