Author: Fleischhauer-Fuss, L.
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MOPGF058 Neutron Scattering Instrument Control System Modernization - Front-End Hardware and Software Adaption Problems 233
 
  • M. Drochner, L. Fleischhauer-Fuss, H. Kleines, M. Wagener, S. van Waasen
    FZJ, Jülich, Germany
  
  When the FRM-2 neu­tron source went into op­er­a­tion (2002) and many in­stru­ments were moved from the closed-down Jülich re­ac­tor to the new fa­cil­ity, it was agreed on a choice of front-end hard­ware and the TACO mid­dle­ware from ESRF. To keep up with soft­ware stan­dards, it was de­cided re­cently to switch to TACO's suc­ces­sor - the TANGO con­trol soft­ware. For a uni­fied "user ex­pe­ri­ence", new graph­i­cal user in­ter­face soft­ware "NICOS-2" is being de­vel­oped by the soft­ware group at FRM2. While gen­eral se­man­tics of TACO and TANGO don't look very dif­fer­ent at a first glance, and adap­tion of de­vice servers seemed to be straight­for­ward at first, var­i­ous prob­lems in prac­ti­cal op­er­a­tion were found. The prob­lems were due to dif­fer­ences in state han­dling, tim­ing be­hav­ior and error re­port­ing. These prob­lems, and the changes that had to be made to en­sure re­li­able op­er­a­tion again, will be de­scribed.  
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MOPGF063 The New TANGO-based Control and Data Acquisition of the Neutron Instrument DNS at FRM II 236
 
  • H. Kleines, M. Bednarek, K. Bussmann, M. Drochner, L. Fleischhauer-Fuss, S. Janaschke, S. Keuler, K.-H. Mertens, S. Su, F. Suxdorf, S. van Waasen
    FZJ, Jülich, Germany
  
  Forschungszen­trum Jülich has been op­er­at­ing the neu­tron In­stru­ment DNS at the neu­tron source FRM II for about 10 years. DNS is a time of flight neu­tron spec­trom­e­ter with po­lar­iza­tion analy­sis that ex­pe­ri­enced a major up­grade in 2014 and 2015. Dur­ing the up­grade DNS was equipped with new elec­tron­ics and a new con­trol and data ac­qui­si­tion sys­tem, in­clud­ing a tran­si­tion from the ex­ist­ing TACO sys­tem to its suc­ces­sor TANGO. On the client side the NICOS soft­ware de­vel­oped at FRM II is used for the im­ple­men­ta­tion of mea­sure­ment op­er­a­tions and user in­ter­face. The de­sign of the new con­trol and data ac­qui­si­tion sys­tem is pre­sented and the lessons learned by the in­tro­duc­tion of TANGO are re­ported.  
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