Understanding The Mac Address And Bacnet Device Id - Trane BACnet BCI-R Integration Manual

Understanding the MAC Address and BACnet Device ID

MAC Address
The MAC address is the rotary dial address. For Trane systems, this address must be between 1 and
127. Although "0,0,0, " is a valid BACnet address, Trane reserves this address for the Tracer SC
controller. All devices on the BACnet MS/TP link must be unique. For non-Trane SC systems, see
"Rotary Dial Address Settings for Non-Trane SC Systems, " p.
BACnet Device ID
Tracer SC uses the rotary dial settings (MAC address) to create the BACnet device ID. The Tracer
SC adds an SC rotary dial address and a link number to artificially create a unique BACnet Device
ID for each node.
Figure 5
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Figure 5. Example showing rotary dial settings and BACnet device ID
BAS-SVP09B-EN
shows how Tracer TU displays the rotary dial settings and the resulting BACnet device ID:
The rotary dials on the BCI-R are set to 30 (0,3,0), which is also the MAC address.
The Tracer SC created a BACnet device ID of 101030.
The Tracer SC address is "0,1,0" .
The BCI-R is installed on link 1.
Configuring the BCI-R
10.
MAC address
BACnet device ID
9