Tags are the single units of data collection from a device. After connecting a device to Litmus Edge, you add tags to that device. Tags map to the device's registers from which you want DeviceHub to collect data. Every device has memory registers that store sensor and system values. These registers can be analog and digital, input, and output. Register information is accessed as tags and these tags are published as Topics to the internal Message Broker.

When you Connect a Device, you have the option of generating raw topics or alias topics. Raw or processed data can be analyzed at the edge using Analytics or flows in Flows Manager. You can publish data to Litmus Edge Manager through raw topics. Alias topics consist of devicename and tagname instead of DeviceID and TagID. Alias topics can be used for publishing and subscribing with an internal message broker.

If you select Enable alias topics when adding or modifying a device:

You can add tags as follows:

See Default Topics and Descriptions for information about topic formats.

You can access Tags from the DeviceHub.

To access Tags: