【摘要】 Modbus协议是应用于电子控制器上的一种通用语言。通过此协议,控制器之间、控制器经由网络和其它设备之间可以通信。由于此协议的简单和通用性,在工业的监控系统中得到了广泛的应用。本文在介绍了MODBUS协议的基础上,给出了利用VC实现根据MODBUS协议传输方式不同所划分的两种错误检测方法LRC和CRC。更多还原

【Abstract】 Modbus protocol is a universal language, the protocol is widely used electronic controller. The controller can communicate with the network and other equipment through the modbus protocol. The protocol is used in the monitoring system because of its simpleness. This paper focuses attention on studying the realization of LRC and CRC with the Microsoft Visual C++ . LRC and CRC are double error detection method in the process of transmission through the different transmission mode of the Modbus protocol.更多还原