J. Kissel

While browsing the new MEDM overview screens from Stuart (updated at LHO earlier today LHO aLOG 30844), I noticed that the ODC lights for the QUADs were red, because the top mass, main chain damping loops claimed to be in a bad state. 

The ODC bit indicating the status is informed by the comparison between a "known good state" as defined by EPICs records entered in by-hand (e.g. H1:SUS-ETMX_M0_DAMP_P_STATE_GOOD), and the current state as reported by the front end (e.g. H1:SUS-ETMX_M0_DAMP_P_STATE_NOW). Both are shown on the right-and-side of the DAMP screen (see second attachment). These "known good state" values were probably not updated when Rana and Evan had made changes to the QUAD damping loops back in May of 2016 (LHO aLOG 27464). 

I've now updated the good values, the comparator lights are green, all ODC lights are green, and I've accepted the new good values into the SDF system. 

Lot's of redundancy there, but it's just indicative of all three generations of state definition control that the SUS have seen that haven't been cleaned up, de-scoped, or standardized.