ModBUS 讀取原始碼 MODBUS 讀取C51的內碼-ModBUS MODBUS read read source code C51

采集48路PLC 的IO口数据，非常有用，最快速度处理数据，使用类似的MODBUS协议-PLC data acquisition 48 IO port data, very useful, the fastest processing data, using a similar MODBUS protocol

PLC与PC通过MODBUS协议通讯的基于C#语言的通用类库，里面的函数已经涵盖了读写数据及IO的基本功能(PLC and PC through the MODBUS protocol communication based on the C# language class library, which has covered the function of reading and writing data and IO basic functions)

IFIX V4.0 modbus ethernet IO驱动(IFIX V4.0 MODBUS ETH IO driver)