This Modbus test software is capable of connecting to any serial port, even if it is already in use by other applications. Monitoring starts immediately, and since it is conducted in a real time mode all potential problems can be detected and identified at an early stage. You can choose how you would like to view collected data, similar IRPs can be highlighted in different view modes for the purpose of comparison. Monitoring sessions can be saved and you can load them whenever required.
This Modbus analyzer works both as Modbus RTU tester and ASCII data sniffer.