dcops daq status
DESCRIPTION
James N. Bellinger University of Wisconsin at Madison June CMS Week 2007. DCOPS DAQ Status. Review. Multiple-fork program runs on a Linux PC Reads selected DCOPS based on configuration in database Reads DCOPS via terminal server Controls lasers using DIM - PowerPoint PPT PresentationTRANSCRIPT
James Bellinger, CMS Week June 2007 1
DCOPS DAQ StatusDCOPS DAQ StatusDCOPS DAQ StatusDCOPS DAQ Status
James N. BellingerUniversity of Wisconsin at Madison
June CMS Week 2007
James Bellinger, CMS Week June 2007 2
ReviewReviewReviewReview
•Multiple-fork program runs on a Linux PC•Reads selected DCOPS based on configuration in database•Reads DCOPS via terminal server•Controls lasers using DIM•Writes fitted data to database on omdb•Writes profiles to database on omdb (will purge periodically)•Provides error information via DIM•Does not include DCOPS calibration info
James Bellinger, CMS Week June 2007 3
ProblemsProblemsProblemsProblems
•Intermittent crashes, apparently in the DIM interface•Minus side ambient light levels are so high that the DCOPS are often saturated. Light shields are being designed; not a big problem when disks closed•Commissioning Plus side:➔Secure network →Separate instance of DAQ (hack needed)➔Questions about DIM visibility through firewall●May need revision in table for compatibility
James Bellinger, CMS Week June 2007 4
Why are the fits often poor?Why are the fits often poor?
ME-2/SLM1 : Laser at PT4 is on
PT1
James Bellinger, CMS Week June 2007 5
Profiles are often poorProfiles are often poor
Laser at this end
Of 40 profiles12 are saturated12 laser misses16 are usable
We have very highambient light levels
Temporary light shields arebeing prepared
James Bellinger, CMS Week June 2007 6
Database Read-backDatabase Read-backDatabase Read-backDatabase Read-back
Readback of data seems to work fine under program control, thoughcoordination with analog needs tweaking. This will be fixed quickly.
Readback of the rawprofiles works now.
James Bellinger, CMS Week June 2007 7
Other ProgressOther ProgressOther ProgressOther Progress
DCOPS calibration database exists and is populated; indexed by new COCOA names
Single read utility for alignment works
James Bellinger, CMS Week June 2007 8
Immediate Plans for DAQImmediate Plans for DAQImmediate Plans for DAQImmediate Plans for DAQ
•Debug DIM interface (?) crash•SL4 for final system and Plus side commissioning•SL3 for Minus side commissioning•Coordinate DCOPS and Analog
James Bellinger, CMS Week June 2007 9
DAQ I/O RequirementsDAQ I/O RequirementsDAQ I/O RequirementsDAQ I/O Requirements
Telnet communication withthe terminal servers and DIMcommunication with the DNSnode are essential for theoperation of any DCOPS DAQ.
Designed to use Root/Oracle interface
Maintenance requires SSH access
Compiling and running uses shared libraries currentlyfound in AFS space.
James Bellinger, CMS Week June 2007 10
FireWallFireWallFireWallFireWall
Telnet blocked: Not a problem
SSH blocked: Gateway system is planned
Keep local copies of libraries for reliability
DIM: I assume DIM command will pass through the firewall, but need confirmation
Oracle: Need confirmation
James Bellinger, CMS Week June 2007 11
Other PlansOther PlansOther PlansOther Plans
•Clean up database•Work out details for using DCOPS calibration and create tool for applying them usefully