This read-only CwrCwConsecutiveSevErrSecond value reports the cumulative Codeword Consecutively Severely Errored Seconds detected since link power-up, as captured at the timestamp recorded in cwr1MinUpdateTime. It gives an admin a minute-resolution figure for the most serious sustained-error class of event, the finest granularity available for that statistic. For example, an admin confirming a very brief but severe fade event would check whether a specific minute's cwr1MinConsecSvCwErrSeconds entry is nonzero.