J. Kissel, T. Shaffer

While recovering the IFO, we noticed that the ASDs of the PCALX and PCALY on the front wall DARM_FOM looked odd and DIAG_MAIN reported issues with PCALY optical follower servo (OFS). Hearing that there was Beckhoff restarts at the end-stations today, we checked in with the PCAL screens. Indeed, a standard toggle of the OFS loop enable buttons (H1:CAL-PCAL{X,Y}_OPTICALFOLLOWERSERVOENABLE) needed after beckhoff work cleared the issue and the usual spectrum of calibration lines came back up as expected.