this programme is developed in Arduino 0022, which can be download from arduino home page (http://arduino.cc/en/Main/Software) freely.

the platform adopted in this project is arduino mega 2560 (//arduino.cc/en/Main/ArduinoBoardMega2560), 
also with I/O extension board (http://www.dfrobot.com/) 
and Xbee wireless module (http://www.digi.com/xbee/).

function: replace the MS/TP protocol based on wired RS485 with wireless MS/TP protocol

the file "serial485_statemachine_frame_three03imp1tokeniblowbyte" is demo for the programme running on the MS/TP connecting with field DDC.

the file "serial485_statemachine_frame_threesuper2tokeniblowbyte" is demo for the programme running ont the MS/TP connnecting with system DDC. 

If any problems, please feel free to contact me: luoqinghua081519@163.com