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Details about the Sparkplug EdgeNodes connected at Engine can be found in the Engine Info > Edge Nodes folder in the MQTT Engine tag provider.
where:
Name | Data Type | Description |
|---|---|---|
| Last Node to Connect | String | The Sparkplug ID of the last node to connect |
| Last Node To Disconnect | String | The Sparkplug ID of the last node to disconnect |
| NodesOffline | Integer | The number of Sparkplug Edge Nodes offline. This is determined by whether the last lifecycle message was an NBIRTH or NDEATH |
| NodesOnline | Integer | The number of Sparkplug Edge Nodes online. This is determined by whether the last lifecycle message was an NBIRTH or NDEATH |
| NodeUnitCount | Integer | The total number of Sparkplug Edge Nodes as determined by the received NBIRTH messages |
| Offline Nodes | Dataset | A dataset containing the Sparkplug ID and timestamp for all offline Sparkplug edge nodes |
| Online Nodes | Dataset | A dataset containing the Sparkplug ID and timestamp for all online Sparkplug edge nodes |
Executing the code below in the Ignition Script Console will print out the values in the Offline Nodes and Online Nodes datasets for review:
...
Example result from the Engine Info > Edge Nodes above
| Code Block | ||
|---|---|---|
| ||
>>> Online Online Sparkplug EdgeNodes: 21 [['Sparkplug EdgeNode Descriptor', u'MyGroupG1/MyEdgeNodeE1'], ['Last Connect Date', FriTue Sep 2226 1408:0459:4001 CDT 2023]] Offline Sparkplug EdgeNodes: 1 [['Sparkplug EdgeNode Descriptor', u'G1MyGroup/E1MyEdgeNode'], ['Last Connect Date', FriTue Sep 2226 1409:0406:4049 CDT 2023]] Offline Sparkplug EdgeNodes: 0 >>> |
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