Timing error rails some channels until cleared with DIAG RESET
Bug transferred from CDS Bugzilla bug 893.
Stuart Aston (LIGO - Livingston Observatory) 2015-07-22 10:03:50 PDT A timing error occurred on the l1susb123 front-end, during which some channels appear to saturate. For example, the Beamsplitter OpLev SUM rails near 40k counts, similarly does the ITMX OpLev SUM, which is on the same front-end (n.b. this saturation is non physical). Suspension alignment channels also show discontinuities during the timing error.
It is not until the "DIAG RESET" is pressed before the aforementioned channels recover. See LLO aLOG entry:-
It's unclear if this is the expected behaviour or a bug.