aLIGO LHO Logbook

H1 CDS (CAL, DAQ)

david.barker@LIGO.ORG - posted 14:22, Tuesday 18 April 2017 - last comment - 15:49, Tuesday 18 April 2017(35633)

new h1calcs front end model installed, DAQ restart

Jeff K, Jonathan, Dave:

h1calcs was restarted with new code at 10:15 PDT. Jonathan and I took the opportunity to update the H1EDCU_RACCESS.ini file with missing channels, and then restarted the DAQ.

Comments related to this report

jeffrey.kissel@LIGO.ORG - 15:49, Tuesday 18 April 2017 (35637)

Link

This was h1calcs model change was covered under the continued work described in
WP #6572
ECR E1700121
II 7828

This restart was to incorporate a few more EPICs monitor channels (24 or so) to support commissioning of the new SRC Detuning Infrastructure (see LHO aLOG 35547). In addition, I moved the pick-offs for calculated time-dependent correction factors that feed into the next subsequent calculations upstream of the final-answer 128 [sec] low pass. No change was made to the functionality of the infrastructure for h(t), these are all control-room only used redundant infrastructure. 

The changes to the h1calcs model is actually just changes to common library parts, which have been committed to the userapps repo:
/opt/rtcds/userapps/release/cal/common/models/
    CAL_CS_MASTER.mdl
    CAL_LINE_MONITOR_MASTER.mdl

These EPICs channels have been added to the various MEDM screens, and those screens have been committed to the userapps repo under
/opt/rtcds/userapps/release/cal/common/medm/
   CAL_CS_TDEP_F_C_OVERVIEW.adl
   CAL_CS_TDEP_F_S_OVERVIEW.adl
   CAL_CS_TDEP_KAPPA_PU_OVERVIEW.adl
   CAL_CS_TDEP_KAPPA_TST_OVERVIEW.adl
   CAL_CS_TDEP_OVERVIEW.adl

Initial results (i.e. the 30 minute NLN lock we just had) indicate that moving the pick-offs that pass one answer to the next calculation upstream of their 128 sec low-pass has cleaned up the final answers. Plots to come when we have more data.