Denotes whether the alarm condition has been acknowledged. The agent will return notAcknowledged(1) if the condition has not been acknowledged, or acknowledged(2) when acknowledged. Writing the value acknowledged(2) for an alarm acknowledges the alarm condition. Each alarm condition must be cleared and acknowledged before it is removed from this table; therefore, even if acknowledged, the alarm will remain in this table until the alarm becomes inactive as denoted by tlpAlarmState.