Rockwell Automation 20-COMM-B BACnet MS/TP Adapter - Manual (Page 27)

Installing the Adapter 2-11
Figure 2.8 Typical Network Terminal Connections
5. Insert the 3-pin linear plug into the mating adapter socket.
6. Install or close the drive cover.
7. Apply power to the drive.
8. Verify that adapter Parameter 07 - [Baud Rate Act] is reporting the
actual network baud rate. If not, use Parameter 06 - [Baud Rate
Cfg] to set the adapter to a fixed baud rate that matches the network
baud rate.
Node 1 Node 2 Node "n"
SHLD +B -A SHLD +B -A SHLD +B -A
Terminal Signal Function
SHLD Termination Shield Termination
+B Signal B TxRxD+
-A Signal A TxRxD-
TIP: After the drive is connected and communicating on the BACnet
MS/TP network, it may be necessary to set additional adapter parameters
to meet your application requirements. For example:
• Parameter 02 - [Comm Loss Action]
• Parameter 03 - [Comm Loss Time]
To access adapter parameters when using the LCD HIM, navigate to the
Device Select screen. Then select the BACnet adapter (20-COMM-B)
and press the Enter function key.
For adapter parameter configuration details, please refer to Chapter 3 .