1. In Data Schema/Asset Attributes create two Boolean Attributes i.9. Sensor value 1 and Sensor Value
2. in Asset Attributes create two Tag Reference attributes i.e. Dry Contact Tag 1 and Dry Contact Tag
3. In Dry Contact Tag, 1 map Dry Contact to Sensor Value 1
4. In Dry Contact Tag 2 map Dry Contact to Sensor Value 2
5. In Data Schema/Asset Type create Double Dry Contact under Sensor.
6. in Double Dry Contact add Sensor Value 1, Sensor Value 2, Dry Contact Tag 1 and Dry Contact Tag 2