HONEYWELL UNITARY CONTROLLER - 230 VAC - INSTALLATION INSTRUCTIONS
31-00610-01 28
Fig. 25 MS/TP MAC Address Details
To set the MAC address of a Honeywell Unitary
controller BACnet™ MS/TP:
1. Find an unused MAC address on the BACnet™
MS/TP network to which the Honeywell Unitary
controller connects.
2. Locate the DIP switch bank on the Honeywell
Unitary controller for addressing.
3. Power off the Honeywell Unitary controllers
BACnet™ MS/TP and set the DIP switches for the
MAC address you want.
4. Add the value of DIP switches set to ON to
determine the MAC address. See Table 19.
For example, if only DIP switches 1, 3, 5, and 7 are ON,
the MAC address would be 85 (1 + 4 + 16 + 64 = 85).
Fig. 26 Calculating the MAC Address
Setting the Device Instance Number
The Device Instance number must be unique across the
entire BACnet™ MS/TP network because it is used to
identify the BACnet™ devices uniquely. It may be used to
identify the BACnet™ device from other devices during
installation conveniently. The BACnet™ MS/TP Device
Instance number is automatically set when added to a
Niagara station. The user can change the Device
Instance number.
Table 19 DIP Switch values for MSTP MAC Address
DIP 1 2 3 4 5 6 7
VALUE 1 2 4 8 16 32 64
+ + +
+ +
+
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