KEP Multi-Protocol Communication Card Option Start-up Guide
Page 20
6 BACNET MS/TP AND BACNET/IP: SETTING NODE_OFFSET TO ASSIGN SPECIFIC
DEVICE INSTANCES
Figure 18: Active Profiles with Node-ID
•
After setting a local PC to be on the same subnet as the COM CARD (
Section
5.1
), open a web
browser on the PC and enter the IP Address of the COM CARD; the default address is
192.168.1.24.
o
If the IP Address of the COM CARD has been changed by previous configuration, the
assigned IP Address must be gathered from the network administrator.
o
The Web Configurator is displayed as the landing page. (
Section
5.5
)
•
The Node_Offset field shows the current value (default = 50,000).
o
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 is 1,001 and the device has a Modbus
Node-ID of 1 then:
1,001 = Node_ 1
1,000 = Node_Offset
•
Enter the decided upon Node_Offset and click “Submit”.
