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6. BACNET MS/TP AND BACNET/IP: SETTING NODE_OFFSET TO ASSIGN SPECIFIC DEVICE INSTANCES
After setting a local PC to the same subnet as the gateway, open a web browser on the PC and enter the IP Address of the gateway; the default
address is 192.168.1.24. If the IP Address of the gateway has been changed by previous configuration, the assigned IP Address must be gathered
from the network administrator (The Web Configurator is shown in the chapter 5).
Node_offset field shows the current value (default = 50,000).
NOTE: The values allowed for a BACnet Device Instance can range from 1 to 4,194,303
To assign a specific device instance (or range); change the Node_offset value as needed using the calculation below:
Device instance (desired) = Node_ Modbus Node_ID
For example, if the desired Device Instance for the device 1 is 50,001 and the following is true:
- 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
Then plug the device 1’s information into the formula to find the desired Node_offset:
- 50,001 = Node_ 1
- 50,000 = Node_offset
Once the Node_offset value is input, it will be applied to all devices as shown below:
- Device 1 Instance = 50,000 + Modbus Node_ID = 50,000 + 1 = 50,001
- Device 2 Instance = 50,000 + Modbus Node_ID = 50,000 + 2 = 50,002
- Device 3 Instance = 50,000 + Modbus Node_ID = 50,000 + 3 = 50,003
Click “Submit” once the desired value is entered.
7. HOW TO START THE INSTALLATION OVER: CLEARING PROFILES
After setting a local PC to the same subnet as the gateway, open a web browser on the PC and enter the IP Address of the gateway; the default
address is 192.168.1.24.
If the IP Address of the gateway has been changed by previous configuration, the assigned IP Address must be gathered from the network administrator
(the Web Configurator is is shown in the chapter 5).
At the bottom-left of the page, click the “Clear Profiles and Restart” button. Once restart is complete, all past profiles discovered and/or added via Web
configurator are deleted. The unit can now be reinstalled.
BACnet: Setting Network_Number for more than one gateway on Subnet
For both BACnet MS/TP and BACnet/IP, if more than on gateway is connected to the same subnet, they must be assigned unique Network_Number
values. On the main Web Configurator screen, update the BACnet Network Number field and click submit. The default value is 50.
8. EXAMPLE: LEGIOMIX 6000 DATA AND PARAMETERS
To show the parameters of the connected devices, following the screens below.
Select the profile of the connected device (1).
1
