Examples

Send and Receive Topics

The default Thing in AWS IoT Core offers example topics – e.g. topic_1. All these configurations can be found under AWS IoT/Security/Policies:

Configure an _address Config in WinCC OA :

• Configure an _address config as shown below.

AWS MQTT Test Client

• In AWS IoT Core you can use a test client to publish and subscribe topics:

  

• When entering data in WinCC OA and clicking Apply, you can also see this value via the test client:

  

Add a custom Topic to the Policy

• Go to Security/Policies and select your Thing's policy. Then click Edit active version to edit the policy. For the Policy documentation - see : https://docs.aws.amazon.com/iot/latest/developerguide/iot-policy-actions.html?icmpid=docs_iot_hp_secure:

  

• Switch to the JSON view and add a new entry as in the figure below:

  

• To activate this policy, select Set the edited version as the active version for this policy and click Save as new version:

  

• Now update the topic name in WinCC OA:

  

• and apply the _original value:

  

• In the MQTT test client you can now also subscribe to the topic_own and see the published data (value):