[Hps-controls] HPS controls meeting, Monday June 10, 2013

[Hovanes Egiyan]

Hi,

I pasted the minutes of the todays HPS controls meeting to the bottom of 
this message and posted them at:

https://confluence.slac.stanford.edu/display/hpsg/2013.06.10+Biweekly

Hovanes.


    Minutes

Present at JLab: Hovanes, Nerses, Stepan, Sergey .

Present at SLAC: Sho, Pele.


        Meeting Schedule

  * The meetings will be held biweekly until there is a need for weekly
    meetings.


        Representatives from detector groups

It was suggested that it would be good to have a single point of contact 
for each detector group even for the cases when more than one person 
contributes to the controls for a particular detector.

  * Stepan will be representing ECAL
  * F.-X. will be representing beamline
  * Sho will find out who will be the contact for SVT
  * Muon system did not have anyone at the meeting, we will find this
    out offline.


        Volunteers for slow controls

  * Ani Simonyan from Yerevan volunteered to help with the ECAL voltage
    controls.
  * Show and Pele will both contribute to SVT controls. Hovanes promised
    to help them with EPICS issues.


        Hall B computing infrastructure

  * In a couple of weeks Sergey will be able to move equipment into Hall
    B counting house. Hovanes asked an access to a Linux server with
    */epics, clas12run, clasrun/* local accounts.
  * Stepan suggested to use CLAS6 directory structure to minimize efforts.
  * HPS will develop its custom software, but will rely on Hall B EPICS
    BASE, support, extensions. Details will be worked out offline.
  * Hovanes needs to compile a full list of items that need to be
    controlled during the HPS run so that there is a finite number of
    things that need to be checked when moving to VxWorks 5.5 and EPICS
    3.14.12.13 .


          ECAL voltage controls

  * ECAL needs controls for HV for APDs and LV for preamps.
  * ECAL HV will use old CAEN SY1527 chassis wilth A1520 HV boards that
    were used for DVCS IC. Basic EPICS support exists.
  * ECAL LV system will use a single MPV18008 board in Wiener MPOD
    chassis. Basic EPICS support exists.
  * SY1527 HV chassis with the boards soon will be moved into PCAL area
    (Stepan). They will be connected to the internal Hall B network.
  * SVT group will let us use their spare MPOD chassis, although we
    might not be able to physically move it to the most convenient place
    for us. It will be on Hall B network.
  * The final mapping of the channels and detector modules is not
    finalized, it is expected to be ready in approximately one month.


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