IoTHub Connector supports cloud to niagara communication via IoTHub C2D messages to control points remotely to do this.

Send a point action command

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1. Go to the Azure IoT Explorer application then in your IoTHub devices then click on the device where you want to send messages. Tehn cloud to device messages.
   
   
   
   
2. By default we use this message template for POINT_ACTION  command. by you can use any format that meat your needs. check the connector advanced settings.

   1. This is the default command template.

      {
      	"type": "POINT_ACTION",
      	"deviceId": "AHU_01_u0SAYCUHda9VUZ5h5Z7nR",
      	"pointId": "Setpoint_v0SAYCUEtoUyS3P0df5kd",
      	"payload": {
      		"action": "SET",
      		"value": 1111
      	}
      }

   2. This is the default connector point action command configuration.
      
      
      
3. On the left chose Cloud To Device Message.
   
   
   
   
4. Then hit Send Message.
5. On the niagara you should see the point value applied successfuly.
   
   
   
6. And the new value sent to the cloud.

Send a send history command

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You can pull historical value for any point that has a history associated by sending a SEND_HISTORY command.

1. Add a history. extension to the point.
   
   
   
   
2. Go to the portal and send the command to the device.
   
   
   
   
3. By default we use this message template for send history command. by you can use any format that meat your needs. check the connector advanced settings.

   1. This is the default command template.

      {
      	"type": "SEND_HISTORY",
      	"deviceId": "AHU_01_u0SAYCUHda9VUZ5h5Z7nR",
      	"pointId": "Setpoint_v0SAYCUEtoUyS3P0df5kd",
      	"payload": {
      		"startDate": "2020-10-19T13:15:55.011+02:00",
      		"endDate": "2020-10-19T14:15:55.011+02:00"
      	}
      }

   2. This is the default connector send history command configuration.
      
      
      
      
4. And you should see the messages being sent.
   
   
   
   To change the message format check the connector advanced setting then history message template
   
   
   

Send ack alarm command

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You can ack alarms by sending an ACK_ALARM command to any alarm recipient device.

1. By default we use this message template for ack alarm command. by you can use any format that meat your needs. check the connector advanced settings.

   1. This is the default command template.

      {
      	"type": "ACK_ALARM",
      	"payload": {
      		"uuid": "85a1fe08-4568-428c-ae10-e4d35f861dc3"
      	}
      }

   2. This is the default connector send history command configuration.
      
      
2. Go the alarms console and pick an unacked alarm id.
   
   
   
   
3. Go to device and send the command.
   
   
   
   
4. Go back to the console and you should see that the alarm has been acked.
   
   
   
   
   

Next Step

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Step 6 Consume Data from IoTHub in Azure