Thermal Solutions ProtoNode Start-up Guide
Page 13 of 47
3.5.2 BACnet (FPC-N34): Calculating the Default Device Instance
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The Device Instance value is automatically generated using the following formula:
BACnet Device Instance = (Device Node ID) + (Default Node Offset)
NOTE: The default Node Offset is 50,000.
For example, if Device A has a Node ID of 1 and Device B has a Node ID of 2, then:
BACnet Device Instance A = (1) + (50000) = 50001
BACnet Device Instance B = (2) + (50000) = 50002
NOTE: The Node ID is set in Section
•
To reach a specific BACnet Device Instance result, refer to
Section
3.5.3 BACnet MS/TP (FPC-N34): Setting the Baud Rate for BMS Network
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DIP switches B0 – B3 can be used to set the field baud rate of the ProtoNode to match the baud
rate required by the BMS for BACnet MS/TP.
•
The ProtoNode baud rate for Metasys N2 is set for 9600. DIP switches B0 – B3 are disabled for
Metasys N2 on ProtoNode FPC-N34.
•
DIP switches B0 – B3 are disabled on ProtoNode FPC-N35 (LonWorks).
B0
B1
B2
B3
Off
On
NOTE: When setting DIP switches, ensure that power to the board is OFF.
3.5.3.1 Baud Rate DIP Switch Selection
Baud
B0 B1
B2
B3
9600
On On On Off
19200
Off Off Off On
38400* On On Off On
57600
Off Off On On
76800
On Off On On
Figure 8: BMS Baud Rate
* Factory default setting = 38400
Figure 7: Baud Rate DIP Switches
