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The Azure Injector module provides the ability to push Tag data to an Azure IoT Hub or Azure Event Hub.  The settings configuration for this module are located under the Configure tab of the Ignition Gateway web UI in the left hand navigation pane under 'Azure Injector Settings'. Once in the configuration section there are four five tabs: General, Azure IoT Hubs, Azure Event Hubs, Sets, and Tag Agents.  Each of these tabs is described in detail in the following sections.

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• Setting Name
  • This is a friendly name of the Azure IoT Hub used to easily identify it.  This must also be unique.
• Enabled
  • Whether or not pushing to this IoT Hub is enabled or not.
• Password/Connection String
  • This is the Azure IoT Hub connection string used to connect.  This string can be one of the following:
    • An IoT Hub connection string with the following format:
      • HostName=<Host Name>;SharedAccessKeyName=<Key Name>;SharedAccessKey=<SAS Key>
    • An IoT Hub's Event Hub-compatible connection string with the following format:
      • Endpoint=<ENDPOINT>;SharedAccessKeyName=<Key Name>;SharedAccessKey=<KEYVALUE>
    • An IoT Hub device connection string with the following format:
      
      • HostName=<Host Name>;DeviceId=<Device Name>;SharedAccessKey=<Device Key>
      • Note: If using MQTT as the protocol (next section), this is the connection string format that must be used.
• Protocol
  • The protocol to use when connecting to the Azure IoT Hub.  It can be one of the following: 
    • MQTT
      • Note: If using MQTT as the protocol, the connection string (previous section) must be a 'device' connection string.
    • HTTPS
    • AMQPS
    • AMQPS_WS
    • Others may be available in the future
• Set
  
  • The Set to associate this Azure IoT Hub connection with.
• Certificates
  • The server certificates to use if required.

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• Store & Forward Enabled
  • Whether to enable Store & Forward capbilities for this endpoint
• Store & Forward Type
  • The type of the Store & Forward mechanism
• Message Capacity
  • The Maximum number of messages to store before dropping the oldest historical messages
• Flush Period
  • The period of time to wait (in milliseconds) between sending when flushing messages

Advanced

• Max Message Size
  • The maximum message size before outbound messages will be divided into chunks smaller than the max message size
• Session Expiration
  • The number of seconds before the session token expires and is renewed

Clicking on the "Create new Azure IoT Hub Setting..." link will bring up the following form for adding a new Azure IoT Hub endpoint.

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