Page History

...

Start by configuring the MQTT Transmission module. Do so by opening Ignition Designer and creating a tag structure similar to what is shown below .Image RemovedNote this structure is based on usage of the 'Default Transmitter' in MQTT Transmission.  So, the directory structure is very important.  Note the structure.

• tag provider/Edge Nodes/[Group ID]/[Edge Node ID]/[Device ID]/...

In the example below this implies the following definitions:

• [Group ID] = G1
• [Edge Node ID] = E1
• [Device ID] = Flow Computer 1

with [default]MQTT Tags/FB107 folders:

Image AddedThese exact values will be used for the EFM Emerson ROC connection Sparkplug parameters to tell the EFM Emerson ROC which MQTT Transmission Transmitter configuration to use and, in turn, which MQTT connection to use to send the history data on.

Next the MQTT Transmission server configuration must be modified to point to the Central Ignition Gateway we set up earlier.  To do so, in the Ignition Gateway Web UI browse to the Configure tab on the top and then to MQTT Transmission Settings in the lower left as shown below.

...