Author: Roncolato, C.R.
Paper Title Page
TUPDP038 Status of Vacuum Control System Upgrade of ALPI Accelerator 595
 
  • L. Antoniazzi, A. Conte, C.R. Roncolato, G. Savarese
    INFN/LNL, Legnaro (PD), Italy
  
  The vac­uum sys­tem of ALPI (Ac­cel­er­a­tore Lin­eare Per Ioni) ac­cel­er­a­tor at LNL (Lab­o­ra­tori Nazion­ali di Leg­naro), in­clud­ing around 40 pump­ing groups, was in­stalled in the 90s. The con­trol and su­per­vi­sion sys­tems, com­posed by about 14 con­trol racks, were de­vel­oped in the same pe­riod by an ex­ter­nal com­pany, which pro­duced cus­tom so­lu­tions for the HW and SW parts. Con­trol de­vices are based on cus­tom PLCs, while the su­per­vi­sion sys­tem is de­vel­oped in C and C#. The com­mu­ni­ca­tion net­work is com­posed of mul­ti­ple lev­els from se­r­ial stan­dard to Eth­er­net pass­ing true dif­fer­ent de­vices to col­lect the data. The ob­so­les­cence of the hard­ware, the rigid sys­tem in­fra­struc­ture, the deficit of spares parts and the lack of ex­ter­nal sup­port, im­pose a com­plete ren­o­va­tion of the vac­uum sys­tem and rel­a­tive con­trols. In 2022 the legacy high level con­trol sys­tem part was sub­sti­tuted with a new one de­vel­oped in EPICS (Ex­per­i­men­tal Physics and In­dus­trial Con­trol Sys­tem) and CSS (Con­trol Sys­tem Stu­dio)*. After that, we started the ren­o­va­tion of the HW part with the in­stal­la­tion and in­te­gra­tion of two new flex­i­ble and con­fig­urable low level con­trol sys­tem racks run­ning on a Siemens PLC and ex­ploit­ing se­r­ial server to con­trol the re­newed pump­ing groups and pres­sure gauges. The plan for the next years is to re­place the legacy hard­ware with new one re­triev­ing spare parts, pro­vide ser­vice con­ti­nu­ity, im­prove PLC soft­ware and ex­tend the EPICS con­trol sys­tem with new fea­tures. This paper de­scribes the adopted strat­egy and the up­grade sta­tus.
* G. Savarese et al., Vacuum Control System Upgrade for ALPI
accelerator, in Proc. IPAC-22, Bangkok, Thailand, doi:10.18429/JACoW-IPAC2022-MOPOMS045 		 
poster icon Poster TUPDP038 [3.286 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP038  
About • Received ※ 04 October 2023 — Accepted ※ 11 December 2023 — Issued ※ 17 December 2023  
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