BACnet Ethernet Driver Fails to Open Ethernet Device on I/A Series R2 Enterprise Server

[Product_Support]

Issue

The BACnet Ethernet driver on an I/A Series R2 Enterprise Server cannot open the Ethernet device, preventing BACnet over Ethernet communication. The following error appears in the station's Standard Output:

ERROR: Cannot start Ethernet Packet Driver
tridium.nre.DriverException: Cannot open \\Device\\E100B1 [ethernet]

Product Line

TAC IA Series

Environment

• I/A Series R2 Enterprise Server
• BACnet Ethernet communications

Cause

BACnet over Ethernet requires a special low-level network access driver. If this driver is not installed or configured correctly, the Enterprise Server cannot establish BACnet Ethernet communication.

Resolution

1. Verify that BACnet Ethernet communication is required for your application.
2. Install and configure the host link-layer support driver as described in the BACnet Supervisor Reference:
   • Refer to pages 1-20 to 1-24 in the BACnet Supervisor Reference.
   • The document is located in:
     \\niagara\\docs\\BACnet
3. Restart the Enterprise Server after configuration changes.
4. Confirm that the Ethernet device is accessible and properly bound to the BACnet Ethernet driver.

Note: This step is only necessary when using BACnet over Ethernet. For BACnet/IP, this configuration is not required.