Poll Modbus Free

View the data of your devices in our android application.
Through a WiFi connection you can establish a Modbus TCP communication knowing the IP of the device, for example a PLC.

It has been implemented: the function 0x03 (reading of multiple registers) and the function 0x01 (reading of multiple coils). One or both can be used simultaneously.
The addresses that can be used are 4xxx, 4xxxx, 4xxxxx for registers and 0x for coils. You can also use the syntax IEC61131 and set the addresses as% MWx for the registers and% Mx for the coils.

Clicking on the element inside the table accesses the writing, using the functions 0x10 (writing multiple registers) and 0x06 (writing a single register).
For the writing of the coils, the functions 0x0F (writing of multiple coils) and the function 0x05 (writing of a single coil) are used.

You can view and write data in decimal, binary and hexadecimal.