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Roque de los Muchachos Observatory

William Herschel Telescope

Data-Acquisition system

Issue 4.3; 1st October 1994

Guy Rixon & Steve Unger

• Contents
• Overview of the DAS
  • Context
  • Scope of this manual
  • General description
  • CCDs and their controllers
  • The IPCS-2
  • The Detector Memory System
  • The SPARCstation data-evaluation system
  • The system computer
  • Names of detector channels
  • Notation for commands
  • Disk files for observations
• Using the DAS
  • Access to the DAS: which terminals?
  • Starting up the system
  • Entering and queuing DAS commands
  • Setting the image format
    • Setting up CCDs
    • Setting up the IPCS
  • Making exposures
    • Simple exposures
  • Multiple sequential exposures
  • Quick-look and instrument set-up
  • Pausing and stopping exposures
  • Interactive exposures
  • Protecting the IPCS - shutter discipline.
  • The observing log
  • The mimic
  • ICL procedures and the DAS
  • Writing the disk files to tape
• Command reference section
  • Commands listed alphabetically
  • Commands listed by function
    • Normal exposures
    • Multiple-exposure sequences
    • Test exposures
    • Changing the image size
    • Changing the read-out speed of the CCD
    • Interrupting an exposure
    • Interactive exposures
    • Logging and commentary
    • Housekeeping
  • Commmand descriptions
    • ABORT
    • ARC
    • BIAS
    • BIN
    • COMMENT
    • CONTINUE
    • DARK
    • DIR(ECTORY)
    • DISABLE_WIN
    • ENABLE_WIN
    • FINISH
    • EXPOSE
    • FLASH
    • FLAT
    • GLANCE
    • KEEP
    • KILLMULTRUN
    • LOG_CHANGE
    • LOG_NEW_DAY
    • LOG_SORT
    • LOG_START
    • MAP
    • MULTRUN
    • NEWTIME
    • NONASTRO
    • NOTE
    • OVERSCAN
    • PAUSE
    • PREFLASH
    • PROMOTE
    • QUE(UE_REPORT)
    • QUICK
    • RAT_AUTO
    • RAT_INTER
    • RAT_SIM
    • RAT_TALK
    • RAT_WAIT
    • READOUT_SPEED
    • REFORMAT
    • RESOLUTION
    • RSPEED
    • RUN
    • SCRATCH
    • SETUP_CCD
    • SETUP_IPCS
    • SHUTTER
    • SKY
    • SLOW
    • STANDARD
    • TARGET
    • TURBO
    • WINDOW
    • WINK
    • ZPLANE
• Differences between S0-9 and S0-8
• Some technical details