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2 - BACnet Setup (cont.)
2.4 - Set MAC address, Device Instance, Node-ID
Set the MAC address for BACnet MS/TP. Set the Device Instance for BACnet MS/TP and BACnet/IP. Set the Node-ID for Metasys N2
and Modbus/TCP on ProtoNode RER (FPC-N34).
2.4.1 - Setting the MAC address
Set the MAC address for BACnet MS/TP for ProtoNode RER (FPC-N34 BACnet).
•
Only one (1) MAC address is set for the ProtoNode regardless of how many devices are connected to the ProtoNode.
•
Set the BACnet MS/TP MAC address between 1 to 127 (Master MAC address); this is so that the BMS Front End can find the
ProtoNode via BACnet auto discovery.
•
Addresses from 128 to 255 are Slave Addresses and cannot be discovered by BMS Front Ends that support auto discovery of
BACnet MS/TP devices.
Note: Never set a BACnet MS/TP MAC Address from 128 to 255.
•
Set DIP switches A0–A7 to assign MAC Address for BACnet MS/TP for the ProtoNode RER (FPC-N34).
•
Refer to Appendix C.1 for the full range of addresses to set Node-ID/Device Instance.
• When using Metasys N2 and Modbus/TCP, the A bank of DIP switches is disabled and not used. They should be set to OFF.
Figure 6: MAC address DIP switches
2.4.2 - Setting the Device Instance (Node-ID)
Set the Device Instance (Node-ID) for BACnet MS/TP and BACnet/IP on ProtoNode RER (FPC-N34 BACnet).
•
The A bank of DIP switches is also used to set the BACnet Device Instances.
•
BACnet/IP/BACnet MS/TP Addressing: The BACnet device instances will be set by taking the Node_Offset found in Web
Configurator and adding it to the Modbus Node-ID that was assigned to the device (Section 2.2). The BACnet Device Instance can
range from 1 to 4,194,303.
For example:
•
Node_Offset default = 50,000
• Device 1 has a Modbus Node-ID of 1, Device 2 has a Modbus Node-ID of 2, Device 3 has a Modbus Node-ID of 3.
•
Device 1 - Device Instance = 50,001
•
Device 2 - Device Instance = 50,002
•
Device 3 - Device Instance = 50,003
•
To change the Node_Offset, see Section 2.4.2.1. The node offset can be changed from 50,000 to 1 to 4,194,302 via the Web
Configurator.
Note: When setting DIP switches, ensure power to the board is OFF.
