Page History

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Room F228 in F-wing at JLab

Agenda

• Wiki MarkupSVT voltage controls ([see SVT DAQ EPICS Channel Map|https://confluence.slac.stanford.edu/download/attachments/146708187/hps_svt-epics-map-09-27-13.xlsx?version=1&modificationDate=1380301549000] from Pele) \ [Pele,Sho\]unmigrated-wiki-markup
• ECAL voltage controls ([see page 4 on the document from Stepan|^ecal_dimensions_channel-mapping.pdf] ) \ [Stepan\]
• Other business

Minutes

Present at JLAB: Hovanes, Stepan, F.-X., Nerses

Present at SLAC: Takashi, Pele, Sho

SVT Voltages

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Pelle showed an Excel spreadsheet with a list of the voltage and temperature channels to be read by and written to by external EPICS IOC. He explained in details what each channel is. 

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Hovanes asked about parameters for the voltage channels that are served from the SVT DAQ. The only thing that EPICS needs to have is to have READ/WRITE access to the On/Off binary variables to turn on and off the individual LV channels, READ access to status readback, READ access to voltage and current set-point readbacks, and READ the voltage and current values. Pelle will double check with Ryan about these parameters.

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ECAL Voltages

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Stepan showed the grouping of the HV channels of the ECAL. The mapping may still change because of the possible issues with the low energy electrons. The plan is to have software that can accommodate small modifications like that.

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