thomas.shaffer@LIGO.ORG - posted 11:07, Tuesday 14 January 2020 - last comment - 11:25, Tuesday 14 January 2020(54495)
Added OUT_OF_RANGE state to BRS{X/Y}_STAT Guardian nodes
Previously, this node would just go into FAULT when the beam was out of its range, but LLO suggested that we have an out of range state to track this better. These nodes are watched by the ISI_ETM{X/Y}_ST1_SC nodes, so I had to make slight modifications to the (userapps)/isi/h1/guardian/sei_config/sensor_correction/brs_states.py file as well.
I forgot to mention that the threshold for what is considered to be "out of range" is currently set to +/-14000 on the DRIFTMON channel. As we enter the OUT_OF_RANGE state, a timer will be started for 10min, and it will not move out of this state untill the timer is up and has not been reset, and the drift is below threshold. This is to prevent it going in and out of this state as the drift is on the edge of the threshold.