DAQ and Controls for GEN01

Presented December 8, 2000, Stephen A. Wood

• Recent DAQ Changes - 1
  • ``3rd arm'' racks in electronics room
    • Fastbus Crate
    • VME Crate
    • ``3rd arm'' electronics
    • SOS run in middle of GeN Madey
  • New Trigger Supervisor with external ``scheduled trigger'' input
    • ``Scheduled Trigger'' always accepted
    • Can be programmed as sync point
    • Ideal for triggering the scaler readout during helicity change
  • Disk Space
    • Fileserver for EPICS/CODA/cdaq account
    • ~300GB of data disk space
    • Local scratch space

• Recent DAQ Changes - 2
  • New computers
    • cdaqs3 - Enterprise 220R dual 450MhZ
    • 2 Linux boxes
    • Monitor upgrades
  • etcp: DAQ aware silo copy program

• DAQ Jobs (things that need to be done)
  • DAQ Trigger
    • 8LM programming (triggers)
    • Retiming Gates/Starts
    • Helicity Gating/Recording
    • Scaler oversampling triggers
    • Event time stamp
    • Coordination of above with software
  • DAQ Software
    • Fastbus readout list
    • Scaler readout lists (with oversampling support)
    • Event time stamp
    • CODA Pause button? (implementation and implications)
  • Other Software
    • End of run reports in hclog (Using Calvin Howell scaler server)
    • Scaler Tsar

• Recent Controls Changes
  • HMS CAEN HV in Counting House
  • Additional CAEN supplies and HV Cables
    • Second floor of Counting House
    • LeCroy HV units not needed?
  • epics.dictionary: Control file that drives EPICS logging during DAQ runs
  • Always-on EPICS logger available. Archived data can be viewed via a Web or X-window interface.
  • LAT terminal servers replaced by new terminal servers
    • Reliable human or computer communication with RS232 devices in Hall

• Controls Jobs (things that need to be done)
  • Setup/Maintain CAEN HV map files
  • Define logging needs and setup
  • Define/Restore EPICS/CODA linkages to Polarized Target controls