Trane BACnet BCI-R Integration Manual page 10

Configuring the BCI-R
Rotary Dial Address Settings for Non-Trane SC Systems
For non-Trane SC systems, the Max Master value must be greater than the unique address settings
from the rotary dials. Although 999 is possible from the dials, the maximum allowed number by
BACnet is 127.
The Max Master is not adjustable in Trane SC systems. For example, if the MAC address is 101 and
the front-end system has a Max Master value of 100, the device will not be discovered.
Many systems have a minimum BACnet Device ID value. Ensure that the Device ID is greater than
this value.
10 BAS-SVP09B-EN