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For this example we'll be using MQTT Engine. However, the steps are very similar for MQTT Transmission with regard to connection establishment. Using the Ignition Gateway Web UI, browse to the Igntion Ignition 'Config → > MQTT Engine /Transmission settings page'Settings > Servers' page. Now click the 'Certificates' tab as shown below:
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This will allow MQTT Engine to buffer messages and reorder them should they be delivered out of order within a 3 second window. Generally 3 seconds seems to be plenty of time for the reordering with AWS IoT Core.
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Using the Ignition Gateway Web UI, browse to the Ignition 'Config > MQTT Transmission Settings > Servers' page. Now click the 'Certificates' tab as shown below:
Now click the 'Create new Certificate' link. Then upload one of the three files previously downloaded when creating the IoT Core 'Thing'. Once completed, your Certificates page should look similar to the following with all three files.
Now, click the 'Servers' tab as shown below.
Select 'Create a new MQTT Server' link which will bring up the following page.
Set the following.
ssl://ENDPOINT_URL:8883
ssl://a33fdj134jkj10-ats.iot.us-east-1.amazonaws.com:8883
Leave all other fields blank and submit the configuration.
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If no Transmitters have been configured, the 'Status' will show 0 of 0. |
Configure an Transmitter as shown below and use Ignition Designer to created an appropriate tag tree in the default provider
The server connection will now show the connected client as '1 of 1'
To confirm messages are published from Transmission, navigate to the Ignition logs and Refresh Transmission. This will cause the client to disconnect and reconnect and publish its BIRTH messages.
The SparkplugTransmissionClient logger will show the NBIRTH and DBIRTH messages pushed.
To confirm messages are received as AWS IoT Core. ON your AWS account, navigate to AWS IoT > Test > MQTT test client.
Select and subscribe on # to receive all published messages
On Transmission refresh you will see all DEATH messages published along with the new BIRTH messages.
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