aLIGO LHO Logbook

H1 GRD

jameson.rollins@LIGO.ORG - posted 09:39, Tuesday 01 September 2015 - last comment - 15:13, Tuesday 01 September 2015(21088)

Three new guardian DIAG nodes added: CRIT, SDF, EXC

I have added the following three guardian DIAG nodes:

DIAG_CRIT: "critical" diagnostics required for OBSERVATION (currently empty)
DIAG_SDF: check that all SDF_DIFF_CNT for all active front end models are identically zero (0)
DIAG_EXC: check that all front end models (except calcs) are reporting no active excitations (hardware injections go in through calcs).

DAQ restart required to acquire new channel names.

These nodes will all be folded under the IFO top node, but have not yet. Waiting for go ahead from ops...

I'm also in the process of updating the GUARD_OVERVIEW screen to add these new nodes. I will post when that screen has been updated.

Comments related to this report

betsy.weaver@LIGO.ORG - 15:13, Tuesday 01 September 2015 (21103)

Link

In discussion, we are proceeding with tying this into the READY bit. Expect an alog from Jamie - but be aware that you may need to look further at some things if you cannot hit the INTENT bit. For example, all SDF must be clean (not red) now. You may need to consult the on-call commissioner if you cannot interpret and address any red SDF differences before going into observation mode. We have some time before the start of O1, so we'll be troubleshooting this if needed this and next week.