Introduction - If you have any usage issues, please Google them yourself
The ModScan application operates a MODBUS mastermodbus_protocol device
in either RTU or ASCII transmission modes. ModScan may be used to access
and modify data points contained in one or more MODBUS slave devices
connected to the PC via a serial port, modem, or network. ModScan supports
the standard MODBUS message types 01-06, 15 & 16, as well as providing
the ability for you to exercise special features of a slave device by
transmitting custom command strings and observing the response. ModScan
is a useful test and diagnostic tool for verifying the proper slave
response to MODBUS queries as well as being a low cost data collection
tool for interfacing data into PC and spreadsheet applications.