Setting the Controller’s MAC Address
The ECLYPSE Controller’s MAC address can be set in BACnet Settings of the ECLYPSE Web Interface.
Inter-Building BACnet Connection
BACnet network connections between buildings must be made using BACnet/IP as shown below.
Figure102: Typical Inter-Building Connection Using BACnet/IP or FOX
BACnet/IP Broadcast Management Device Service (BBMD)
Though BACnet/IP uses IP protocol to communicate, a standard IP router does not forward broadcast messages which are
important in BACnet to identify services that are available within the BACnet internetwork.
When two ECLYPSE Controllers communicate to each other over a standard IP connection that is separated by an IP
router, both controllers need the BACnet/IP Broadcast Management Device (BBMD) service to be configured and opera-
tional.
The BBMD service identifies BACnet messages on the BACnet MS/TP network that are intended for a device located on
another BACnet network. The BBMD service encapsulates these messages into an IP message to the appropriate BBMD
service of the other BACnet MS/TP network(s). The BBMD service on these networks strips out the encapsulation and
sends the BACnet message on to the appropriate devices.
When sending BACnet messages across a standard IP connection that has an IP router, there must be one BBMD service
running on each BACnet MS/TP network.
BACnet MS/TP Communication Data Bus Fundamentals
105
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