Each Bacnet trend log descriptor has various properties that affect its BACnet representation. Access these properties in the property sheet view of any log descriptor, as shown in Figure 98.
The following list describes additional properties in Bacnet log descriptors, not seen in the or dialog for the component:
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Status
Niagara-only, read-only status flag for the file descriptor component.
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Fault Cause
Niagara-only, read-only property showing an explanatory text string if the log descriptor is in fault. For example, if its Object Id is manually edited to be the same as another existing log descriptor—a fault occurs and the Fault Cause would be “
Duplicate Object ID.” -
Id
Appears only if a BacnetNiagaraHistoryDescriptor (as shown Figure 98), and reflects the same Niagara history “Export Ord” in the station.
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Log Ord
Appears only if a BacnetTrendLogDescriptor (as shown Figure 99), and reflects the handle of the the specific BacnetTrendLogExt responsible for creating the exported history.
