1. A method of providing an output value for an output device having a device status, the method comprising: providing an output device having an output generating an output signal according to an output value; associating the output with a logic function in communication with a network; associating the logic function with an indicator; receiving a status message from the network; receiving a value message from the network; updating the indicator according to the status message and the device status; and selectively providing the output value to the output from one of the logic function and the value message, according to the logic function.