Unlike most fieldbus drivers such as Bacnet and Lonworks, the status of an Nrio network can be “down,” in addition to the
normal “ok” or less typical “fault” (fault might result from misconfiguration of a network component, for example a duplicated
Trunk property value). A down status might occur in the case of external I/O where the RS-485 wired connection to the JACE is broken (no communications possible).
The Health slot contains historical timestamp properties that record the last network status transitions from ok to any other
status. The “Fault Cause” property further explains any fault status.
NOTE: As in other driver networks, an Nrio network has an available Alarm Source Info container slot you can use to differentiate Nrio network alarms from other component alarms in the station.