<aside> 💡 STARTING POINT: There are 2 main sources for the state:

• the activity

  State example from activity.json

• pressed buttons from button bar

  State example from button bar.json

</aside>

ACTIVITY-related STATES

1. Get the activity through MQTT-IN node.

   

2. Use a json to convert from string to object.

3. Use a switch to match the two classisc states on the activity:

   activity = 0 → UnspecifiedStopState

   activity = 1 → ProducingAtFullSpeedState

   

   these are the two functions for the two states:

   1. UnspecifiedStopState

      msg.payload = {
      "timestamp_ms": msg.payload["timestamp_ms"],
      "state": 40000
      }
      msg.topic = "ia/factoryinsight/dccaachen/printing/state"
      return msg;
      

   2. ProducingAtFullSpeedState

      msg.payload = {
      "timestamp_ms": msg.payload["timestamp_ms"],
      "state": 10000
      }
      msg.topic = "ia/factoryinsight/dccaachen/printing/state"
      return msg;
      

4. After that the only thing left to do is to send out the messages via MQTT-OUT.

BUTTONBAR-related STATES

1. Get all the buttons values from MQTT-IN.

2. Use a json to convert from string to object.

3. After that we need a function to only send messages if the button got pressed. (msg.payload.value==1)

   

   if (msg.payload.value == 1){
       msg.payload = msg.payload; 
       return msg
   }
   

4. Because of the buttons sending up to a handful of values with a 1 we need a limit that drops all the unnecessary values in between.

   

5. Finally we need to specifiy the stop state (there is a list of available states in our documentation.) And then the last step is as always to send the state message via MQTT-OUT node.

   if (msg.payload.value == 1){
       msg.payload={
           "timestamp_ms": msg.payload.timestamp_ms,
           "state": 210000
       }
       msg.topic = "ia/factoryinsight/dccaachen/thermosetting/state"
   
       return msg;    
   }