Ryan C, Dave:
The Beckhoff CS-AUX-DEV5 slave_count_actual dropped from 127 to 0 five times between 08:01 and 08:07 this morning. As far as we know there is no Beckhoff work ongoing at this time.
Now DEV5 (End Y) is continuously showing an "at least one device not in OP state" error. The FRAMEWORKINGCNT MEDM shows Error_2 is in error. Trend shows how this error relates to the slave count drops.
Erik and I investigated this a bit more. We found the recent error appered on the EY ISC PLC. It is reporting ALS and ASC errors. The attached MEDMs show the tree for ALS -> QPDA -> Whitening which ends with Invalid Data.
We think that if this fault only impacts ALS and ASC at EY, it most probably can be left until Monday for the fix. We are contacting Daniel and Fil to confirm.
