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Details about the MQTT Clients connected at Engine can be found in the Engine Info > MQTT Clients folder in the MQTT Engine tag provider where a tag path is created for each Server Setting configured
where:
Name | Data Type | Description |
|---|---|---|
| Connected Nodes | Integer | Number of currently connected Sparkplug Edge Nodes to this MQTT Client |
| Enable Latency Check | Integer | Writable tag to enabled message latency checking for each MQTT Client |
| Message Processing Latency (ms) | Integer | The amount of time to process the last Sparkplug message |
| Messages Per Second | Integer | The number of MQTT messages received by Engine per second |
| MQTT Client ID | String | The Client ID for the MQTT Client |
| Offline DateTime | DateTime | The last time at which the MQTT Client successfully disconnected from the MQTT Server |
| Online | Boolean | A read-only tag showing the connection status of the MQTT Client |
| Online DateTime | DateTime | The last time at which the MQTT Client successfully connected to the MQTT Server |
| Server Latency (ms) | Integer | The amount of time that it takes for a test MQTT message to be sent and received back by MQTT Engine |
| Target Server URL | String | The URL of the target MQTT Server to connect to |
Executing the code below in the Ignition Script Console will print out the details for each MQTT Client for review:
...
| Code Block | ||
|---|---|---|
| ||
>>> Number of MQTT Clients: 2 [['Server Name', 'Chariot SCADA'], ['MQTT Client ID', u'ME-d631ab45-4466-42f0'], ['Online', True], ['Online DateTime', Fri Sep 22 14:01:14 CDT 2023], ['Primary Host ID', None], ['Target Server URL', u'tcp://localhost:1883'], ['Offline DateTime', None]] [['Server Name', 'Second MQTT Server'], ['MQTT Client ID', u'ME-9a13f3b9-b9e4-4c6f'], ['Online', False], ['Online DateTime', Fri Sep 22 14:20:06 CDT 2023], ['Primary Host ID', None], ['Target Server URL', u'tcp://192.72.123.45:1883'], ['Offline DateTime', None]] >>> |
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