Reports until 13:22, Wednesday 10 April 2019
H1 CDS
david.barker@LIGO.ORG - posted 13:22, Wednesday 10 April 2019 (48392)
External EDCU mx_stream delay increased from 1mS to 3mS

WP8163

Jonathan, Dave:

While H1 was out of lock, I increased the mx_stream delay for h1susauxh34 (hosts h1edc) from 1mS to 3mS. LLO installed a 5mS delay yesterday, but given the larger data size of h1edc (it acquires more channels) we decided to err on the side of caution and try 3mS initially. If the error rate is found to still be non-zero we will go to 5mS.

Since installing h1edc in the DAQ on Tue 02apr2019 we have had three episodes of CRC errors from h1edc

Sun 07apr 04:45 PDT (qty 3)

Mon 07apr 04:30 PDT (qty 3)

Tue 09apr 19:00 PDT (qty 2)

Given the low frequency of this error, we will need to monitor for several weeks.