Modbus Tester is a tool for testing connection with devices in Modbus protocol network. Now it provides testing network over serial communication port (COM). The tool includes:

• port configuration menu
• data control component, which shows data stored in choosen registers
• data change component
• raw data logger
• chart component, which draws chart of chosen register Unfortunately RU is the only language of interface.

• Basic functionality
• Serial port support
• ModbusTCP and Modbus-over-TCP support
• Add switching between two or more interface languages (now only Russian is available)

In this tool I used sources of modbus protocol implementation NModbus4 with some additions