CAS Modbus Scanner is a utility to retrieve coils, inputs, holding registers, and input registers from a Modbus-enabled device. Values retrieved from the device can be viewed in many different formats, including Binary, HEX, Uint16, Int16, Uint32, Int32, and Float32.

This utility can also discover Modbus devices on your network if you do not know their address. It works by testing every address, function, length, and offset to check for exceptions or responses.