Patent ID: 7956719

Claim:
An arrangement for handling communication messages in a building control system, comprising: a communication circuit operable to communicate messages with building control system devices via a communication network, a control device operably coupled to the communication circuit, the control device operable to cause the communication circuit to communicate a first message to a first building control system device, the first message configured to cause the first building control device to generate a responsive message, perform a first operation if the responsive message is received via the communication circuit within a first time-out period, and perform a second operation if the responsive message is received via the communication circuit after a first time-out period has expired, and generate a plurality of different time-out period values corresponding to a plurality of building control system devices, the plurality of different time-out period values including a value identifying the first time-out period; wherein the control device includes a user-interface, and wherein the control device is operable to: generate a visible display on the user interface showing simultaneously time-out information corresponding to a set of two or more building control system devices and information identifying the set of building control system devices, the time-out information corresponding to at least one of the plurality of different time-out values.