Patrick reported that h1isiham3 is seeing a single CRC error Link

Last Tuesday I reconfigured the DAQ to trend these CRC channels since we have been seeing them recently. This ISIHAM3 is the first error seen since Tuesday. The error was raised yesterday evening 

Nov 22 2015 17:08:43 PST

The GDS-TP screen for ISIHAM3 shows no loading events at this time (system has been stable since Oct 20th).

This error is saying that for one 1/16th of a second block of data sent from ISIHAM3 to the DAQ data concentrator, the CRC check sum for the data block as computed by the front end did not match that computed by the data concentrator.

The next time H1 is out of observation mode, the CRC can be reset with the "DAQ clear accumulated CRC" button on the CDS overview screen.