Modbus Monitor Help

The Modbus Monitor (Free) Help


The Modbus Monitor application allows to communicate remote Modbus Devices using the USB serial ports, Bluetooth, BLE, and TCP interfaces or Channels.

To Use the App

Configure correct Baud-rate or IP Address from the options menu, depending on the interface you are using. The Bluetooth/BLE requires pairing before using the interface.

The Modbus Address are polled using the 6 digit address scheme "Xnnnnnn". The first digit ("X" ) is the standard Modbus address scheme followed by 5 digit Modbus PLC based (one based) Addresses.

Examples:

  • 400001 = First address, Modbus Function code 3.

  • 400001 = Address 1, Function 3

  • 400001.10 = Address (Dot) Value = Get 10 registers starting with address 1

  • 400001 995 = Address (Space) Value = Write 9995 to Register 1 with value of 995

  • 300001 = Address 1, Modbus Function 4

  • 100001 = Address 1, Modbus Function 0