一个用于测试ABB变频器通讯的小工具，在调试Abb变频器RS485通讯时很有帮助。它可以读写所用的寄存器。-a test for ABB small inverter communication tools, Debugging badly in communication RS485 converter helpful. It can read and write by the Register.

PIC单片机485通讯的C语言程序,绝对好用的程序,PIC Microcontroller 485 of the C language program, absolutely easy to use program