What are the default CB line BACnet ID's and MSTP (MAC address) addresses out of the factory?

BA Engineering Team
18.04.2023 15:40

CB Line controllers are shipped from the factory with their default BACnet addressing set based on their
serial numbers.


The Device ID is the last 6 digits of the controller’s serial number. The Device ID must be unique in the
entire BACnet system


The MAC address is determined by the last 2 digits of the serial number.
If the last 2 digits of the serial number are 23, the MAC address will be 23.


Note:
Exception: if the last 2 digits of the serial number are 00 the MAC address defaults to 100.


The CBX, CBT-3T6-5R and the CBV-2U4-3T can have their MAC addresses set using DIP switches.


Setting the 7-way DIP switch and then cycling the power, will force the controller to update its MAC
address to match the DIP settings.

The address is set in binary, from 1 (0000001) to 127 (1111111).


A switch moved towards the ‘ON’ mark represents 1, moved towards ‘OFF’ represents 0.


The switch labelled 1 is the least significant bit, the switch labelled 7 is the most significant bit.


If all switches are set to the OFF position, the MAC address can be software configured.

All this means is you can wire power and comms to the devices, power them up, and providing you are using a correctly configured BACnet router (Matrix, Nexus, CBXi, FBXi, or third-party device), you can discover in your devices and start commissioning right a way on site.

Tags: addressing, BACnet, binary, controllers, DIP switches, MAC address, serial number, software configuration
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