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The tags below provide information regarding the MQTT Engine Devices, Edge Nodes, Latches, MQTT Client as well as information on MQTT Engine.
Name | Data Type | Description |
---|---|---|
Enable Tag Tracking | Boolean | Writable tag to control whether or not to update Tags Per Seconds. |
Redundancy Role | String | The redundancy configuration of the Ignition system that MQTT engine is installed on. Options are Independent, Master and Backup |
Redundancy State | String | The redundancy status of the Ignition system that MQTT engine is installed on. Options are Active or Cold |
System-Wide Reset Info | Boolean | Writeable tag to 'reset' all Engine metrics |
Tag Count | Long | The sum of tags included in the last NBIRTH and DBIRTH messages received from each Edge Node. When an LWT is received form the Edge Node, the tag count for that Edge Node is set to 0 and repopulated on connect when the next BIRTH messages are received. |
Tags Per Second | Long | The number of tags changes received per second. Value is updated every two seconds. |
Total Bytes Recvd (bytes) | Integer | The number of bytes received by Engine since the last time the info metrics were reset via the System-Wide Reset Info tag |
Total Bytes Xmit (bytes) | Integer | The number of bytes sent from Engine since the last time the info metrics were reset via the System-Wide Reset Info tag |
Total Data Mesg Count | Integer | The number of messages received by Engine since the last time the info metrics were reset via the System-Wide Reset Info tag |
Version | String | The version MQTT Engine currently installed |
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For each identified MQTT Client, the following folders and tags are available:
Name | Name | Data Type | Description |
---|---|---|---|
Primary Host State/PrimaryHostName | Folder | Folder named as the Primary Host ID configured in MQTT Engine | |
Payload | String | Status of the Primary Host. Options are {"online":true,"timestamp":1681780081657} or {"online":true,"timestamp":1681780081657} where the timestamp is the time of the last status change | |
Retain | Boolean | Retain status of the LWT message for the Primary Host | |
Legacy Primary Host State/PrimaryHostName | Folder | Folder named as the Primary Host ID configured in MQTT Engine if Enable Legacy State messages is True under the Severs > Legacy State configuration | |
Payload | String | Status of the Legacy Primary Host. Options are OFFLINE or ONLINE | |
Retain | Boolean | Retain status of the LWT message for the Primary Host |