DAQ Doc Portal

Documentation for the DAQ systems is curated here

Important Resources

• DAQ Meeting list
• DAQ Testing Portal
• DAQ Networking Information - DAQ network map, available computers and phone numbers
• Bob Michaels' DAQ website
• Hall A Software Tools
• The CODA documentation website

FAQ and common problems and solutions

• If you want help installing CODA and the relevant environment software on a local machine, contact Bryan Moffit.
  • The CODA (2.6.2 - relevant to Prex DAQ) software is documented and has an installation guide on the CODA Website.
  • Chandan Ghosh will write a full installation process documentation guide for the Stony Brook group's ELOG which will also be available here.
• Installing an NFS file server on a machine (for use in serving Centos OS and CODA files for installation and booting).
• Hall A Counting House Helicity Control Board User's Guide.

Goals for PrexII running

• Work on the Parity DAQ to bring the Trigger Supervisor (TS) into its proper overseer role
  • ✓ This requires shifting from COMPTON to ADAQ3 computer and verifying all connections and .crl files behave as expected (completed in 5-23-2018 meeting)
  • ✓ Set up Trigger Supervisor DAQ to communicate correctly with Injector DAQ from ADAQ3 computer
  • ✓ Set up Counting Room DAQ and add to TS (should be easy)
  • ✓ Set up RHRS DAQ and add to TS (completed in 5-24-2018 meeting)
  • ✓ Set up LHRS DAQ (completed in 5-25-2018 meeting) with new QWeak ADCs, connect it to RHRS, and add to TS (completed in 5-31-2018 meeting)

• Commission DAQ
  • 3/4 ✓ Deploy all ADCs needed and test each channel (completed all but Injector ADC testing in 7-30-2018 meeting)
  • ✓ Build various DAQ configs with subsets of the DAQ crates
  • ✓ RS485 cable between HRS to build full system (completed in 7-29-2018 meeting)
  • Timing diagram, check timing of external signals and readout
  • Check the 7200 scaler setup at injector, find a spare 7200
  • Test rate limit, ensure deadtime zero
  • Pedestal studies, aka cross-talk
  • Test spares (Ye Tian is working on this)
  • Add a scaler to R-HRS crate

• Improve DAQ software
  • Ensure that ET system is fast enough for feedback
  • Revive the synchronization-check system
  • Combine Prex.crl, Prex_ts.crl, and Injector.crl functionality into one modular CRL
  • Implement Bank structure
  • Green Monster maintenance
  • Eliminate the so-called "dirty trick" if we can (clean up CRL)

• We want an automated system that will vastly simplify the life of WACs (Fall 2018) - see June 1 2018 afternoon meeting for more
  • It should read information from CODA, EPICS, and shift operator schedules as runs start and stop
  • It should make standard analysis plots
  • And it should display these diagnostic and physics results on a collaboration viewable webpage
  • This will likely involve mimicking the existing ELOG automated systems

• We should rewrite the existing PAN (Parity ANalyzer) into JAPAN (Just Another Parity ANalyzer)
  • This is partly to update the codebase to incorporate the QWeak analysis updates
  • And also to build expertise and familiarity in the current collaboration
  • JAPAN is currently in development at www.github.com/JeffersonLab/Japan

DAQ Testing and Commissioning

Main Article - DAQ Testing

• DAQ Hardware - Types of modules, manuals and guides for use and testing
• DAQ Layouts - Flowcharts and Wiring Maps
• DAQ Software - CODA and Software testing, manuals and guides for use and testing
• DAQ Commissioning Notes - Field notes on updates, and hardware and software tests