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.

欧姆龙 CP1H系列PLC与ABB公司ACS800系列变频器采用ModbusRTU通讯，变频器程序版本为普通应用程序版本，现场测试成功。-Omron CP1H series PLC and ABB s ACS800 series drives use ModbusRTU communication, the inverter program version for the general application version, field test was successful.