How many MSTP networks can you connect to an Automation Server (AS or AS-B)?
MSTP Network on an StruxureWare Building Operation Automation Server (AS or AS-B)
BACnet MSTP Devices
Require 2 separate MSTP networks, either to use 2 different Baud rates or to speed up the network and split the devices across the 2 ports.
You can create 2 separate MSTP networks under the BACnet interface of an AS-B or AS (version 1.3 or higher), one on Comm A the other Comm B.
Each can run at different Baud rates if required.
For number of supported devices please reference LL#7070. Please be aware that the listed maximum is for the Automation Server allowing you to distribute between the two comm ports.