Issue
Why doesn't BACnet/Ethernet work on a Niagara R2 UNC-600 or UNC-610 after upgrading to R2 version 529 (527 or higher)?
ERROR: Cannot start Ethernet Packet Driver tridium.nre.DriverException: Cannot open \Device\RTL81391 [ethernet]
Environment
- UNC-600
- UNC-610
- Niagara R2 version 527 or higher
Cause
New driver files were generated for BACnet/Ethernet to provide Vista compatibility. As a result, the driver files are unable to properly initialize the Ethernet packet driver on both the UNC-600 and UNC-610 platforms. The error can be viewed using the output window during the station start process.
Resolution
The solution involves the replacement of three files within the platform's R2 version 529 bin directory.
File (UNC-6xx_BACnetEthernet.zip) contains the associated files and includes a readme.pdf with details on how to install on the UNC-600 and UNC-610 platforms.
