This object captures the station timer's value from the sample just before the FrameErrorThreshold was reached, letting a manager reconstruct exactly when that condition began, and it resets when a new condition becomes active. An administrator reads this alongside the base frame and error counts to build a complete timeline of the fault event. For example, this timestamp tells the admin precisely which polling interval preceded the FrameErrorThreshold alarm, useful for correlating with other logs from that same window.