A latch status shows the last error entry to the log. If the latch has been reset, the latch status will be the same as the current status.

Latches remain in an error state even after the alarm condition has disappeared, and will remain so until an operator resets the latch to the current alarm status. However, the latch will not reset until the alarm condition goes away. Latches are system wide and all clients see the same latch.