If you are using the IP-852 interface, an IP-852 Configuration Server must be used and configured to manage the IP-852 channel. Also, all devices on the same IP-852 channel must be added to the IP-852 Configuration Server.
Any IP-852 compliant configuration server may be used. The Echelon IP-852 Configuration Server is available for free download here. For more information on how to set up an IP-852 channel with the IP-852 Configuration Server, refer to the IP-852 Channel User's Guide.