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Reports until 13:26, Tuesday 25 August 2026
H1 CDS
david.barker@LIGO.ORG - posted 13:26, Tuesday 25 August 2026 - last comment - 15:22, Tuesday 25 August 2026(91671)
CDS Maintenance Summary: Tuesday 25th August 2026

WP13536 SUS BS additional fast channels

Oli, Dave:

We installed Oli's latest h1susbs which added 13 new fast DQ channels, most at 2k, some at 256Hz. h1susbs model was restarted at 12:37 and the DAQ soon after.

WP13535 Add DAQSTAT channels to DAQ

Dave:

The new DAQSTAT's non-string records were added to the DAQ as EDC channels.

WP13542 Remove h1daqscript0 epics-load-mon channels from DAQ

Dave:

A new H1EPICS_CDSMON.ini was generated sans DAQSCRIPT0 channels. DAQ restart was needed

WP13532 Upgrade VAC LX Beckhoff and IOC, update PT180, remove obsolete gauges.

Patrick, Dave:

Patrick installed the latest VAC LX code and I installed its new INI file into the DAQ. 

Gauges removed: PT140, PT191, PT192, PT193.

PT180 was modified, some channels removed, some added, some stayed the same name.

Note that PT180's MOD1 and MOD2 gauges have been reversed

  Before Today Now
MOD1 Had been BSC8 gauge, recently has been reading zero reads ~900
MOD2 Had been reading ~740 Now is BSC8 gauge, reading 7e-08 Torr

DAQ Restart

Jonathan, Dave

We did a DAQ restart, 1-leg and EDC at 12:39, 0-leg at 12:41. Frame writers (which are not restarted with the new code) had caught up with the new run number and were writing identical full frames at 12:44.

Comments related to this report
david.barker@LIGO.ORG - 15:22, Tuesday 25 August 2026 (91677)

At 15:16 NDS1 restarted itself. Jonathan is investigating.

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