This tool is from the modbus.org web site.
The tool is a modbus client that can be directed at a modbus server, such as the IntraVUE host computer on port 502.
Download the tool at http://i-vue.com/intravue/monitor.jar
Double click the .jar file to launch it (requires a JRE on the host).
Enter the IP address of the Intravue host, use 127.0.0.1 if you are running from the host.
Put unit 0. (Note Intravue versions after 2.0.3 responded to all unit ids)
Set register to 0 to start at the beginning, size to 10 for 10 data types per request, and datatype to INT16