Data Communication Test Software. Simply the easiest way to test and debug modbus TCP systems. For system maintenance and device manufacturers.

Features: No installation program. Just download, unzip and run;
Functions as a ModbusTCP Master or Modbus RTU over TCP Master;
All information is entered and displayed in one window; Displays the data traffic;
Change data types and byte ordering with a click to determine the format of the reply string without repolling;
Supports Multiple data types in the same message;
Supports Standard Modbus and Enron Modbus;
Supports 2 byte slave IDs;
A notes column allows labeling the results;
Saves and restores settings;
Writes single and multiple values.
Save the communication log to a text file.

Ideal for new users and handy for the experienced user.
Visit www.simplymodbus.ca for a tutorial on the basics of how modbus works.
Demo is fully functional and requires program restart after 6 messages.