Reports until 15:04, Monday 19 January 2015
H1 CDS
david.barker@LIGO.ORG - posted 15:04, Monday 19 January 2015 - last comment - 09:41, Tuesday 20 January 2015(16142)
Tracking ADC errors on IOP models

We are tracking the ADC errors which are being seen on the STATE_WORD for the IOP models. These are a feature RCG2.9 They are raised very infrequently, work to remove them is ongoing.

I have cleared the errors by pressing the DIAG RESET buttons on the IOP models. Here is the maximum ADC0 hold time for the models which were showing the error:

h1iopsusb123: adcHoldTimeEverMax=23, adcHoldTimeEverMaxWhen=1105450127 (Jan 16 2015 13:28:31 UTC)

h1iopsush34: adcHoldTimeEverMax=25, adcHoldTimeEverMaxWhen=1105533748 (Jan 17 2015 12:42:12 UTC)

h1iopsush56: adcHoldTimeEverMax=24, adcHoldTimeEverMaxWhen=1105583419 (Jan 18 2015 02:30:03 UTC)

h1iopsusey: adcHoldTimeEverMax=21, adcHoldTimeEverMaxWhen=1105219714 (Jan 13 2015 21:28:18 UTC)

h1iopslc0: adcHoldTimeEverMax=22, adcHoldTimeEverMaxWhen=1105241179 (Jan 14 2015 03:26:03 UTC)

Comments related to this report
keith.thorne@LIGO.ORG - 09:41, Tuesday 20 January 2015 (16151)CDS
Link 

See more complete L1 data at aLOG entry 16455.  We need a bit more proc file data to characterize the limits