MQTT Data Collector Features and Datatypes
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 |
| Polled Collection | No |
| Unsolicited Collection | Yes |
| Timestamp Resolution | 1ms |
| Boolean Data | Yes |
| Floating Point Data | Yes |
| Integer Data | Yes |
| String Data | Yes |
| Recalculation | No |
Note:
Recalculate button on the Historian Administrator is enabled but the functionality is not available as the MQTT Collector is a non-historic collector and the source broker doesnt 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.
Supported Datatypes
Following are the supported datatypes for MQTT Data Collector.
| Source Datatype | Historian Datatype |
|---|---|
| DoubleFloat, DoubleInteger, FixedByte, QuadInteger, SingleFloat | ihDoubleFloat |
| ByteString, String | ihVariableString |
| Boolean | ihBool |