BACnet Router Start-up Guide
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7.1.5 BACnet/IP Secondary
•
Enable BBMD
– select this checkbox to enable the Router to
act as a BBMD.
•
IP Port
– this MUST be different to the IP Port used on the
BACnet/IP Primary connection. Default is 47809 (0xBAC1).
•
Public IP Address
and
Port
– if the BBMD is being accessed
across a NAT Router, then these values must be configured
with the public IP Address and Port by which the BBMD can be
reached from across the NAT Router. The Public IP Address
and Port would also be used in the BDT of remote BBMD's that
need to reach this BBMD across the NAT Router. If no NAT
Router is being used, these fields can be left blank. For
example, type into a Google browser “my IP Address” to see
the local PC’s Public IP Address.
7.1.6 BACnet MS/TP and BACnet Ethernet
•
Max Info Frames
– the number of transactions the
Router may initiate while it has the MS/TP token.
Default is 50.
•
Max Master
– the highest MAC address to scan for
other MS/TP master devices. The default of 127 is
guaranteed to discover all other MS/TP master
devices on the network.
•
MAC Address
– legal values are 0 to 127, must be
unique on the physical network.
•
Baud Rate
– the serial baud rate used on the
network.
•
Token Usage Timeout
(ms)
– the number of
milliseconds the router will wait before deciding that
another master has dropped the MS/TP token. This
value must be between 20ms and 100ms. Choose a
larger value to improve reliability when working with
slow MS/TP devices that may not be able to meet
strict timing specifications.
