Author: Chin, E.P.
Paper Title Page
MOPGF029 Personnel Protection System Upgrade for the LCLS Electron Beam Linac 157
 
  • C. Cyterski, E.P. Chin
    SLAC, Menlo Park, California, USA
  
  As fa­cil­i­ties age and evolve, con­stant ef­fort is needed in up­grad­ing con­trol sys­tem in­fra­struc­ture; this ap­plies to all as­pects of an ac­cel­er­a­tor fa­cil­ity. Por­tions of the Per­son­nel Pro­tec­tion Sys­tem of the Linac Co­her­ent Light Source are still re­ly­ing on a legacy, re­lay-based Safety Sys­tem. An up­grade is un­der­way to mod­ern­ize these sys­tems using Siemens S7-300 Safety PLCs and Pilz PNOZ­Multi pro­gram­ma­ble con­trollers. The up­grade will be rolled out over mul­ti­ple years re­quir­ing the im­ple­men­ta­tion to be fully com­pat­i­ble with ad­ja­cent legacy sys­tem while set­ting the foun­da­tion for the new gen­er­a­tion sys­tem. The so­lu­tion re­lies on a mod­u­lar­ized safety sys­tem which can be de­ployed in a short time (1 month) while being flex­i­ble enough to adapt to the evolv­ing needs over the next 20 years.  
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