Acuity Controls nLight ECLYPSE User Manual page 49

On-Board Port
Item
On / Off
Network Number
BACnet IP UDP Port
Enable BBMD
Enable Foreign Devices
Apply
BBMD Settings
BACnet/IP devices send broadcast discovery messages such as "Who-Is" as a means to discover other BACnet devices
on the network. However, when there are two or more BACnet/IP subnetworks, broadcast messages do not pass through
network routers that separate these subnetworks.
BBMD allows broadcast message to pass through a router: on each subnet, a single device has BBMD enabled. Each
BBMD device ensures BACnet/IP connectivity between subnets by forwarding broadcast messages found on its subnet-
work to each other, and then onto the local subnetwork as a broadcast message.
In the BBMD table, add the BBMD-enabled controllers located on other subnetworks. To add a BBMD:
1. Click .
Figure 39: Adding a BBMD
2. In the IP field, enter IP address of the BBMD located on the other subnetwork.
3. In the Mask field, enter the subnetwork mask for the other subnetwork.
4. In the Port field, enter the port number for the BACnet service of the BBMD located on the other subnetwork.
5. Click OK.
You can also edit or delete a BBMD selected from the list using the Edit icon
nLight ECLYPSE
Description
Enables/disables the routing of BACnet packets between BACnet MS/TP controllers connected to the ECLYPSE
Controller's RS-485 port and BACnet/IP controllers connected to the ECLYPSE Controller's Ethernet Switch ports.
Network number that identifies a LAN for routing purposes. All controllers with the same network number are members of
the same logical BACnet network. See
Standard BACnet/IP port number (UDP 47808) used by BACnet devices to communicate.
BBMD allows broadcast message to pass through a router. See
To enable this feature, set Enable BBMD on only one device on each subnet.
Foreign Device Registration allows a BACnet/IP device to send broadcast messages to a device with BBMD enabled.
See Foreign Device Settings.
To enable this feature, set Enable Foreign Devices on only one device on each subnet.
Click to refresh the information in the list.
Click Apply to apply and save the changes.
Device Addressing.
BBMD
ECLYPSE Web Interface
Settings.
or Delete icon provided.
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