MODBUS／TCP主站协议栈的改进

在使用MODBUS／TCP协议通信的过程中，主站读写命令与从站响应的速度不匹配，会引起主站的应用程序等待；同时由于数据收发过程处理不当，容易导致通信异常中断。为解决这两个问题，在分析MODBUS／TCP协议栈实现的基础上，通过增加内存缓冲区和管理模块，提出了一种MODBUS／TCP主站协议栈的设计和实现方法。该协议栈有效缩短了主站应用程序的读写等待时间，提高了数据通信的稳定性。

Improved MODBUS/TCP Master Protocol Stack

Speed mismatch between master read/write and slave response generally lead to latency time of master application in MODBUS/TCP communication.Communication interrupt occurs as a result of malpractice of data reception and transmission. To solve these two problems,this paper presents a design and implementation of MODBUS protocol master stack by increasing memory buffer and management block.Improved stack efficiently shorten the latency time of the master application and improve the stability of the communication.