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Reports until 12:57, Wednesday 11 December 2019
H1 CDS (DAQ)
david.barker@LIGO.ORG - posted 12:57, Wednesday 11 December 2019 - last comment - 14:00, Wednesday 11 December 2019(53838)
DAQ restart for h1omc change (add two 16kHz channels)

Jeff, Timesh, Patrick, Dave:

WP8495 Adding DARM1_IN2 and DARM1_EXC to DAQ

A new h1omc model was started followed by a DAQ restart

WP8487 Adding NCALEX slow channels to DAQ

I created a new H1EPICS_NCALEX.ini file and added it to the EDC. During the DAQ restart I also restarted h1edc, whose channel count increased from 40,722 to 40,778.

Comments related to this report
jeffrey.kissel@LIGO.ORG - 14:00, Wednesday 11 December 2019 (53840)CAL, DetChar, ISC
J. Kissel
WP 8495
ECR E1900390
IIET 13946

The "new omc model" is the same, functionally, as the model that has been used before, just now with two new additional channels -- H1:LSC-DARM1_IN2 and H1:LSC-DARM1_EXC -- stored in the frames at 16 kHz. This is to facilitate studies of the time dependence of the DARM loop open loop gain, loop suppression, and closed loop gain, namely that we can post-process transfer functions during excitations offline instead of relying on DTT (i.e. what we wanted to do yesterday: LHO aLOG 53824). 
See Work Permit, ECR, and IIET for further details and approval.

This installation is now complete, and closes the work permit and ECR / IIET for LHO.

Attached is a screen shot of the model with the new DARM1_IN2 and DARM1_EXC channels added. Also, as a bonus, I removed all of the vestigial asterisks, "*", from the end of the channel names in the list. That used to indicate the differentiation between "science" (stored forever) and "commissioning" (stored for a month or two) frames, but that distinction is no longer needed, as all channels in the frames are stored forever.

@DetChar -- the DARM1_EXC channel will be zero during all times of OBSERVATION READY data, but H1:LSC-DARM1_IN2_DQ will essentially be a copy of the various forms of "H1:LSC-DARM_ERR_DQ," and thus will contain gravitational waves and is an "unsafe" channel to use for vetos. I let you know just in case you have a regular scrub for all channels in the frames, and rely on a human created list of "unsafe" channels to exclude them from blind, brute force, statistical studies.
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