MQTT Data Collector Features
The following table outlines the features of the MQTT collector.
| Feature | Capability |
|---|---|
| Browse Source for Tags | No |
| Browse Source for Tag Attributes | No |
| Multiple-level topic subscription using a wildcard | Yes |
| Polled Collection | No |
| Unsolicited Collection | Yes |
| Timestamp Resolution | seconds, milliseconds, and microseconds |
| Boolean Data | Yes |
| Floating Point Data | Yes |
| Integer Data | Yes |
| String Data | Yes |
| Recalculation | No |
Note:
Recalculate button on Historian Administrator is enabled but the functionality is not available as the MQTT collector is a non-historic collector and the source broker doesn’t store the historic data.
If MQTT collector is installed with Predix Cloud as destination and Offline Configuration is selected, user needs to provide the Tag details in Offline Configuration file. For more information on offline configuration, refer to Offline Configuration for Collectors.