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  40m Log, Page 36 of 344  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  3661   Wed Oct 6 15:56:14 2010 josephbHowToCDSHow to load matrices quickly and easilyAwhile ago I wrote several scripts for
reading in medm screen matrix settings and
then writing them out.  It was meant
  
  3662   Wed Oct 6 16:16:48 2010 josephb, yutaUpdateCDSc1sus statusAt the moment, c1sus and c1mcs on the c1sus
machine seem to be dead in the water. 
At this point, it is unclear to me why.
  
  3665   Thu Oct 7 10:37:42 2010 josephbUpdateCDSc1sus with flaky sshCurrently trying to understand why the
ssh connections to c1sus  are flaky. 
This morning, every time I tried to make
  
  3666   Thu Oct 7 10:48:41 2010 josephb, yutaUpdateCDSc1sus statusThis
problem has been resolved.
Apparently during one of Alex's debugging
  
  3668   Thu Oct 7 14:57:52 2010 josephb, yutaUpdateCDSc1sus statusAround noon, Yuta and I were trying to
figure out why we were getting no signal
out to the mode cleaner coils.  It turns
  
  3671   Thu Oct 7 16:21:02 2010 KojiOmnistructureCDSBig 3Both Rolf and Alex (at least his elbow)
together visited the 40m to talk with Joe
for the CDS.
 IMG_3642.jpg 
  3673   Thu Oct 7 17:19:55 2010 josephb, alex, rolfUpdateCDSc1sus statusAs noted by Koji, Alex and Rolf stopped
by.
We discussed the feasibility of getting
  
  3675   Thu Oct 7 23:24:44 2010 yutaUpdateCDSchecking MC1 suspension dampingBackground:
 The new CDS is currently being
set up.
  
  3678   Fri Oct 8 12:21:11 2010 josephbUpdateCDSchecking MC1 suspension damping Upon investigation, it appears that the
c1mcs model was (and still is) timing out
after a random amount of time.  Or in other
  
  3680   Fri Oct 8 15:57:32 2010 josephbUpdateCDSc1ioo statusI've been trying to figure out why the
c1ioo machine crashes when I try to run the
c1ioo front end.
  
  3681   Fri Oct 8 17:35:24 2010 josephbUpdateCDSstatus of c1ioo, c1sus and rfmRFM is still not working. 
I can see data on a filter just before it
reaches the RFM sending code, but I see only
  
  3687   Mon Oct 11 10:49:03 2010 josephbUpdateCDSc1sus stabilityTaking a look at the c1sus machine, it
looks as if all of the front end codes its
running (c1sus - running BS, ITMX, ITMY,
  
  3690   Mon Oct 11 17:31:44 2010 yutaUpdateCDSActivation of DAQ channels for 8 optics(Joe, Yuta)

Background:
  
  3691   Mon Oct 11 20:52:00 2010 ranaUpdateCDSActivation of DAQ channels for 8 opticsBah!  We tried   
  3692   Mon Oct 11 22:04:28 2010 yutaUpdateCDSdamping for MCs are basically workingBackground:
 Even if we can't use the Dataviewer
to get the time series of each 4 DOF displacements,
 SUS-MC1.pngSUS-MC2.pngSUS-MC3.png 
  3696   Tue Oct 12 13:05:00 2010 josephb, alexUpdateCDSfb still flaky, models time out fixedInteresting information from Alex. 
We're limited to 2 Megabytes per second
per front end model.  Assuming all
  
  3706   Wed Oct 13 17:04:34 2010 josephb, yutaUpdateCDSburt restore now working with filter settingsPreviously, burt restoring was not setting
filters on and off, which was required us
to constantly go through all the filter banks
  
  3707   Wed Oct 13 17:12:33 2010 josephb, yutaUpdateCDSFilter name length problem found and fixedThe missing filter files for ULPOS, URPOS,
and so forth for the mode cleaner optics
was due to the length of the names of the
  
  3708   Wed Oct 13 18:01:43 2010 yutaHowToCDSeditting all the similar medm screens(Joe, Yuta)

Say, you want to edit all the similar
  
  3712   Thu Oct 14 00:54:12 2010 ranaHowToCDSBad PSL Quad, so I edited the SUS MEDM screensWe found today that there was some  Untitled.png 
  3720   Thu Oct 14 14:09:30 2010 josephbUpdateCDSNDS 2 server status[Joe, John]
The nds 2 server is about 50% of
the way there.  You can connect to it
  
  3728   Fri Oct 15 15:32:35 2010 josephbUpdateCDSslow DAQ channels addedI
added all the _OUT16, _INMON, _EXCMON channels
associated with the BS, ITMX, and ITMY channels
  
  3732   Mon Oct 18 08:44:36 2010 ranaUpdateCDSslow DAQ channels addedWhy EXCMON? I think that we should
modify the filter coefficients so that the
decimation filter that makes OUT16 is a 2nd
  
  3735   Mon Oct 18 15:33:00 2010 josephb, alexUpdateCDSPossibly broken timing cardsIt looks as though we may have two IO chassis
with bad timing cards.
Symptoms are as follows:
  
  3742   Tue Oct 19 21:10:27 2010 yutaUpdateCDSbad filter coefficients for every suspensions!(Koji, Yuta)

Summary:
  
  3744   Wed Oct 20 01:22:18 2010 yutaUpdateCDSfixed filters for MCs, but no damping(Rana, Yuta)

Summary:
 Screenshot.png 
  3748   Wed Oct 20 21:43:25 2010 yutaUpdateCDSchecking whitening filters for MCs and messed up(Joe, Yuta)

Background:
 MC2ULSEN.pngMC2LRSEN.png 
  3757   Thu Oct 21 21:35:16 2010 yutaUpdateCDSfixed whitening filter switches(Joe, Yuta)

Summary:
 LLLR.pngContec23BO.png 
  3758   Fri Oct 22 00:59:01 2010 yutaUpdateCDSnew MEDM screens, new filter banks(whitening and dewhitening related)(Joe, Yuta)

Summary:
 HappySideMEDM.png 
  3765   Fri Oct 22 19:53:27 2010 yutaSummaryCDSconversion failure in digital filters(Rana, Joe, Yuta)

We now understand that we never succeeded
  
  3767   Fri Oct 22 23:29:48 2010 yutaUpdateCDSfixed output filter switching(Joe, Yuta)

Summary:
  
  3769   Sat Oct 23 03:36:05 2010 yutaUpdateCDSfixed filters for C1SUS, C1RMS, C1MCS(Joe, Yuta)

Summary:
  
  3770   Sat Oct 23 14:42:01 2010 yutaSummaryCDSdamped MC suspensionsAfter replacing filters, MC suspensions
damped  last night.
Further measurement next time.
 dam.png 
  3778   Mon Oct 25 20:20:59 2010 yuta, JoeUpdateCDSDAQ channel number etc[U][B]Summary:[/B][/U]
  We split the old SDSEN filters to SDSEN,
SDSIDE, SDCOIL last week.
  
  3785   Tue Oct 26 12:45:20 2010 yutaHowToCDSmaking a new master file for medm screens(Joe, Yuta)

 In elog
  
  3787   Tue Oct 26 16:02:55 2010 yutaHowToCDSthings to do after making a new Simulink model(Joe,Yuta)

Things to do after making a new Simulink
  
  3788   Tue Oct 26 17:31:17 2010 yutaUpdateCDSfixed OPLEV stuff and MCL filters(Joe, Yuta)

Background:
 optlevMC2.png 
  3789   Tue Oct 26 21:27:02 2010 JenneUpdateCDSfixed OPLEV stuff and MCL filtersSince MC2_TRANS is, in fact, MC2 Transmission,
and not an oplev at all (it's not red, and
it's not a lever, although it does use a
  
  3794   Wed Oct 27 11:34:40 2010 josephbUpdateCDSModified rc.local for front end machinesWhat was the problem:
On reboot, c1sus was in a strange
state.  The epics IOC was running, along
  
  3796   Wed Oct 27 12:32:53 2010 josephbUpdateCDSfb rebooted to try and fix testpointsProblem:
Test points were unavailable last
night, even after reboots of c1sus and even
  
  3797   Wed Oct 27 15:38:19 2010 josephb, yutaUpdateCDSIO chassis with bad timing was taken back to DownsProblem:
The front end timing was not working
properly for 2 of the IO chassis.  They
  
  3799   Wed Oct 27 17:06:48 2010 josephbUpdateCDSMoved c1iscey chassis and host interface board to c1iooProblem:
Need a working IO chassis connected
  
  3811   Thu Oct 28 16:38:54 2010 josephbUpdateCDSFlaky fb, reverted inittab changes on fbProblem:
Yuta reported many of the signals
being displayed by dataviewer "fuzzier"
  
  3814   Thu Oct 28 21:20:11 2010 yutaUpdateCDSFlaky fb, tried DAQ re-install, but no helpSummary:
  Unfortunately, fb is flakier
than normal. 
  
  3815   Thu Oct 28 23:17:15 2010 yutaSummaryCDS[EMERGENCY] accidentally deleted daqdRana showed me that if c1sus machine runs
c1mcs stuff(and c1x02 stuff) only, we can
use dataviewer without crashing fb.
  
  3821   Fri Oct 29 11:25:15 2010 josephb, yutaSummaryCDS[EMERGENCY] accidentally deleted daqdProblem:
Missing daqd file, i.e. the framebuilder
executable.
  
  3822   Fri Oct 29 11:29:29 2010 josephbUpdateCDSHow I broke the frame builder yesterdayProblem:
Long before Yuta came along and deleted
daqd, I had done something to prevent the
  
  3827   Fri Oct 29 16:43:25 2010 josephbUpdateCDSc1ioo now talking to c1susProblem:
c1ioo was not able to talk to c1sus
because of timing issues.  This prevented
  
  3828   Fri Oct 29 18:37:33 2010 yutaSummaryCDSdaqd and current CDS statusBackground:
  Before Joe left(~ 1 hour ago),
fb was working for a while. But after he
 06-25-2009.NN_24ThreatLevel.GJH2L69BK.1.jpg 
  3829   Sat Oct 30 05:27:53 2010 yutaSummaryCDSCDS time delay measurementMotivation:
  We want to know the time delay
of CDS in the IOP scheme.
 delaysetup.pngCDSdelay.png 
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