Data-level Monitoring Using IO Ninja
IO Ninja is a professional, scriptable, multi-purpose terminal emulator, network sniffer, and IO monitor. You can find an introduction to IO Ninja here: http://ioninja.com/.
We have developed a special IO Ninja plugin for monitoring traffic through Tibbo Modbus Gateways. Tibbo Modbus Gateway Monitor plugin connects into the TCP port 23 of your Gateway. As soon as such a connection is established, the Gateway starts sending an "annotated" copy of all traffic to IO Ninja.
Here is how to use the plugin:
Install and run IO Ninja.
Select Tibbo Modbus Gateway Monitor plugin.
Enter the IP address of your Gateway into the Modbus Gateway Address textbox.