Reports until 14:36, Friday 21 November 2014
H1 SUS
alexan.staley@LIGO.ORG - posted 14:36, Friday 21 November 2014 (15233)
PRM offloaded hierarchy switch now

Alexa, Shiela, Nic

 

We forgot to post this yesterday ...

Our ASC offloading script had offloaded the wfs to the offset of M2_LOCK_P/Y. Once we ran the script, we noticed that we kicked SRM because SRM is under an offloaded hierarchy, whereas PRM is distributed (BS is also offloaded, but we never feedback to MO P, Y so these filters are off). Looking through all of the optics that we feed back to, only PRM is left under distrubted control, so we decided to swtich PRM from distrubted to offloaded. Our length control scheme for PRM is the same for both these configurations, so this transition was smooth.

We also modified the ASC offloading script to offload the wfs to the M2_DITHER offsets. This signal is always on and is not sent to another stage, so should be okay now.