How to Create Cloud Topic
Cloud Connector Connection Setup:
- Select “Settings” category from menu.
- Select “Cloud Connector” to connect cloud.
- Choose proper settings to connect cloud.
- To see connection is established, select “Status” category from menu.
- Select “Cloud Connector” to see connection status.
- After connection is established, to create cloud topic follow these steps:
- Select “Modules” category from menu.
- Select “Cloud Topic”
- In “Cloud Topic” page, click plus '+' button to add new cloud topic
- Name: Write any name you like to describe cloud topic, for example test_cloud_topic
- Comment: Write any comment for cloud topic (optional)
- Cloud Topic Type: There are two types: “CYCLIC” or “EVENT_DRIVEN”. If you choose CYCLIC type, topic will be depends on time cycles. If you choose EVENT_DRIVEN type, topic will be depends on events to be occur.
- Cloud Topic Cycle: If your cloud topic type is CYCLIC, you have to choose a time interval.
- Condition Eval String: If type is CYCLIC and this condition is false, we will not send data to cloud. If type is EVENT_DRIVEN, we will send data at positive edge of this condition. You can set your condition eval string with using tags or archive values, to do that click “Build..” button.
- Message Eval String: This is message to be sent to the cloud. You can set your message eval string with using tags or archive values, to do that click “Build..” button.
- Max Buffer Day Count: Determines how long the cloud topics created will remains. For example 30 days.
- Allow Op Access: If this box is marked, operators have access to see records.
- Click “Save” button to add new cloud topic.
- After added new cloud topic, click “Historian” category from menu.
- Click “Cloud Topic” to see created historian topics from your added cloud topic.
- In “Historian Cloud Topic” page, you will see your topics:
- “Topic Name”: This is the name for topic which you described in creation of cloud topic.
- “Is Sent”: If the message has been sent, the box will be marked.
- “Message”: This is the message to be sent.
- “Created At”: Shows the creation date.
- To view sent messages, go to amazon web services page:
- Then click “Sign in to the Console”
- After that, go to services, In “Internet of Things” section, choose “IoT Core”
- You will see “Test” section on left of the page, click it
- In “Subscribe to a topic” section, write topic filter.
- In our example topic name: test_cloud_topic.
- Then click “Subscribe” button.
- Your subscriptions will be appear and you can see message which is sent from cloud topic.
