1, first download wireshark, and then install all the way in the end.
2. After installing wireshark, to https://sourceforge.net/projects/bacnet/files/bacnet-tools/ download the new version of BACnet tools, unzip after downloading find good mstpcap.exe copied to the installation directory extcap wireshark in.
3, open wireshark software, plug in USB to 485 tools. Press the map to find BACnet MSTP port, set the baud rate, start listening.
