WWW.BIGASSFANS.COM ©2013 DELTA T LLC ALL RIGHTS RESERVED
6
2 - BACnet Setup (cont.)
2.4.2.1 - Set Node_Off
Set Node_Off to assign specific Device Instances for BACnet MS/TP and BACnet/IP.
•
If the Device Instances need to be set for addresses other than 50,000 to 50,127, change the Node+-Offset (50,000 is the default for
Node+Offset). See Section 4.1 to set the PC’s IP address to the same Subnet as the ProtoNode and Section 4.2 to connect to the
ProtoNode’s Web Configurator which is shown in Figure 7.
•
The BACnet Device Instance can range from 1 to 4,194,303.
•
BACnet/IP/BACnet MS/TP Addressing: The BACnet device instances will be set by taking the Node_Offset found in Web
Configurator (see Figure 6) and adding it to the Modbus Node-ID that was assigned to the device (Section 2.2).
•
Set the PC’s IP address to be on the same subnet as the ProtoNode.
•
Open the PC browser and enter the default IP address of the ProtoNode: 192.168.1.24. This will bring you to the FST Web
Configurator landing page for the ProtoNode.
•
Change the Node+Offset to meet the required device instance.
For example: Required Device Instance = 20,001
•
Node_Offset changed to = 20,000.
• 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 = 20,001
• Device 2 - Device Instance = 20,002
• Device 3 - Device Instance = 20,003
Note: The Modbus Node a Node_Offset = Device Instance setting
Figure 7: FST Web GUI screen
2.4.3 - Setting the Device Node-ID
Set the Device Node-ID for Metasys N2 and Modbus/TCP on ProtoNode RER (FPC-N34 Metasys N2).
•
The Modbus RTU Node-IDs assigned to the devices attached to the ProtoNode in Section 2.2 will be the Metasys N2 and Modbus
TCP Node_IDs for the field protocols.
•
Metasys N2 and Modbus/TCP Node-ID Addressing: Metasys N2 and Modbus/TCP Node-IDs range from 1 to 255.
