This is a great bit of software I have tried a few Modbus examples on the Arduino but this appears to be the best. I have started using the ESP8266 modules with built in Wifi and wondered if someone with more skills than me could do a version that would compile on the board. This chap John Lassen http://www.john-lassen.de/index.php/projects/esp-8266-arduino-ide-webconfig has done an amazing web based web config for the ESP8266 network setup combine this with MUDBUS and you would have some really useful Modbus IOT devices.
This is a great bit of software I have tried a few Modbus examples on the Arduino but this appears to be the best. I have started using the ESP8266 modules with built in Wifi and wondered if someone with more skills than me could do a version that would compile on the board. This chap John Lassen http://www.john-lassen.de/index.php/projects/esp-8266-arduino-ide-webconfig has done an amazing web based web config for the ESP8266 network setup combine this with MUDBUS and you would have some really useful Modbus IOT devices.