When building a solution, the goal is to have as much as possible controlled by the WebBricks.
Consider an underfloor heating scheme; the room sensor should be connected to the same WebBrick as the zone actuator. In this way the setpoint, or target temperature of the room can be managed locally.
The Gateway holds the global intelligence, which in this case would be:
The Gateway also holds details on the heat source, or sources that can feed this zone. For example this could be a combination of a heat pump and fossil fuel boiler. These sources might feed a number of zones. The Gateway will call for heat demand from the appropriate source based on Occupancy, Global Schedules and Mimina
These events are to do with the multi zone heating module.