How does UPB’s 2-way communication work?
When an intelligent controller sends a command to one or more UPB devices, the command message can include a request for one of three types of acknowledgements. It is also possible for the controller to request the status of a specific UPB device. If you are interested to know how a specific controller supports UPB’s acknowledgement and status reporting features, please contact either the controller manufacturer or the provider of the controller’s UPB interface software.