The devices can be configured over bus if the pre-commissioning settings allow for a connection between the configuration device (e.g. BACnet browser) and the peripheral devices (non-conflicting address and matching baudrate / transmission format).
Full configuration over bus: If the address is unique per segment when powered up, the device can be accessed by the configuration tool and the address and other parameters can then be set to the definitive values.
Partial configuration over bus: If the address is not unique per segment when powered up, each device must get a non-conflicting address before connecting it to the bus (e.g. using the push-button addressing method). After addressing all devices, the remaining configuration can be done over the bus using the default settings for baudrate (or auto-baud) and transmission mode.
Note
Overwriting the bus configuration over bus uses a timeout. If “1 = Load” is not written into the BusConfigCommand (cf. 9.2.4) within 30 seconds, all values are discarded.