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Reports until 13:23, Tuesday 25 November 2014
H1 CDS
david.barker@LIGO.ORG - posted 13:23, Tuesday 25 November 2014 (15289)
CDS Maintenance Summary

Sudarsan, Peter, Dave: PSL model changes

The h1psliss, h1pslfss and h1pslpmc models were modified to downsample all 32kHz channels to 16kHz. This resulted in 10 32kHz channels changing to 16kHz with the distribution: ISS=1, FSS=4, PMC=5. The models were restarted and the DAQ was restarted. This resulted in a science frame size reduction of about 20MB per 64 second science frame (2%). The restarted models were burt restored to 9am PST today.

Dave: DMT broadcaster

Following last week's ISS model change, the H1BROADCAST0.ini file was changed to replace the obsolete H1:PSL-ISS_PD[A,B]_OUT_DQ with the calibrated H1:PSL-ISS_PD[A,B]_REL_OUT_DQ. Also the obsolete H1:LSC-OMC_DC_OUT_DQ was removed from the DMT.

Hugh, Dave: HEPI pump controller channels

Following Hugh's software change on the corner station HEPI pump controller EPICS system, a new EDCU INI file was added to the DAQ. Hugh has updated the MEDM screens and is updating the autoBurt.req file.

Dave: Restart of H1SLOW-F1FE EPICS gateway

Following the restart of h1ecatx1 this morning, subsequent restarts of the DAQ EDCU did not establish new connections to this IOC. I restarted the EPICS gateway between the EDCU and the Beckhoff IOCs which prompted the EDCU to re-establish a connection. It took several minutes for the reconnection to complete. Initially the number of disconnected channels went from 1,951 to 81, then took a further minute to reduce to zero.

Dave: DAQ restarts

To support the above work the DAQ was restarted three times this morning. On restart 1 and 3 the data concentrator was very slow on restarting (several minutes) while restart 2 proceded at the usual pace. While waiting for the slow restarts I had time to check for duplicate channels (none) and any errors in log files (none).

Jim, Dave: replace broken thunderbolt monitor at operator station

I collected the repaired Apple thunderbolt monitor from Alpha Computers this morning, Jim installed it at the operator station. We are looking into a tether cable solution for strain relief.

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