BB2-7030 User Guide – Rev. 1.0
Page 25
7.
Using
the
BB2
7030
as
an
MS/TP
to
BACnet
IP
gateway
The difference between router and gateway for connecting MS/TP to BACnet IP is this: When
using the router, you address device instances other than the router itself. When using the
gateway, you address the gateway itself (the BB2-7030), reading and writing the objects found in
the gateway. There are several options for how the data got there. The point is that as a gateway,
you address the BB2-7030’s device instance.
To connect MS/TP to BACnet IP, or vice versa, you would start by setting up the BACnet client
to read/write objects in other devices. It is possible that the BB2-7030 acts as a data transfer
engine reading from one device and writing to another. It is also possible that the BB2-7030 acts
as a form of proxy server, reading data from one or more devices, storing that data, and waiting
for that data to be read by yet other devices. (This definition of proxy is not what is meant on the
Slave Proxy page.)
The BACnet client, or master, in the case of a gateway would treat the BB2-7030 as a single
device having some number of objects containing data. The main reason one would use the BB2-
7030 as a gateway for BACnet to BACnet data transfer is to permit some sort of data filtering or
manipulation or alternate form of representation as the data is passed through.
