Serial port PCAP capture tool not just for Modbus/RTU
24 Mar 2017
This tool can capture serial port traffic and store all data in PCAP format. It is later possible to open it by Wireshark and analyze it.
This tool was created to capture Modbus/RTU on RS-485 but can be used to any other similar traffic.
It is available on my Github https://github.com/j123b567/SerialPCAP
Tutorial on using this capture is on YouTube https://www.youtube.com/watch?v=YtudbhexPv8
Tool is only for command line,
usage: serialpcap <portName> [<baudRate> [<frameGapMs>]]
portNameis name of the port, e.g. COM1, /dev/ttyUSB0, …
baudrateis speed of the serial port (default 9600)
frameGapMsis gap between frames in ms (default 10)
It is possible to run this tool using Mono on Linux or using .Net framework on Windows.