Subscription of MQTT topic in MQTT broker(EDGEX) in ignition

Ignition
1

I have a MQTT broker named.
mqtt_broker = "broker.emqx.io"
mqtt_port = 1883 # Default port for MQTT
mqtt_topic = "petrus/modbus"
In this broker, We have a topic and that topic is posting some values from the devices.

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I need to subscribe that topic in ignition as tag.
In ignition side:
I have connected to the MQTT broker via MQTT engine.
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I was stuck, how to subscribe that topic from MQTT broker to our ignition.
Kindly help me with this. Most of the online resources regards this topic is not much clear.

2

https://docs.chariot.io/display/CLD80/MQTT+Engine+Custom+Namespace

3

Thank you for reply @Kevin.Herron . We will work on it.