基于TCP/IP通讯的仪器仪表应用层协议架构由于新一代仪器仪表的数据量大，传输距离远，实时性高，传统的基于RS232/RS485的串行数据传送方式已不能满足要求，而基于TCP/IP的以太网数据通讯方式,传输距离大(通过internet，理论上无限远)，速度快，是当前新一代仪器仪表数据传输的理想方式。
基于单片机(如MCS51+RTL8019AS)的以太网接入技术已经相当成熟，可以方便的与PC机连接。根据仪器仪表嵌入式应用的要求（如实时性），我们采用TCP协议或UDP协议进行数据传输。TCP是一种可靠的传输协议，但效率相对较低，UDP是一种由用户自己来保证传输可靠性的传输协议，但效率较高。
本协议目前采用TCP，以太网接口模块作为服务器方，任何时候仅提供一个连接。
本文档的适用范围为带有以太网接口模块的仪器仪表。
Instruments based application layer protocol architecture TCP/IP communication since the new generation of instrumentation data capacity, transmission distance, high real-time, based on the traditional serial data transfer mode RS232/RS485 can not meet the requirements, and based on TCP/IP Ethernet data communication mode, the transmission distance is large (via internet, theoretically infinite) speed, is the ideal way to present a new generation of instrumentation data transmission.
Microcontroller-based (such as MCS51+ RTL8019AS) Ethernet access technology is already quite mature, it can be easily connected to a PC. According instrumentation embedded applications (such as real-time), we use the TCP protocol or UDP protocol for data transmission. TCP is a reliable transport protocol, but the efficiency is relatively low, UDP is a transmission by the users themselves to ensure the reliability of the transmission protocol, but more efficient.
The protocol currently used TCP, Etherne (2016-09-21, WORD, 18KB, 下载10次)
Modbus TCP是基于以太网的通讯协议，可以用Winsock控件，默认端口是502
Modbus TCP Ethernet-based communication protocol with Winsock control, the default port is 502 (2012-08-21, WORD, 50KB, 下载14次)
TCP工作机制。TCP（Transmission Control Protocol）是因特网的运输层、面向连接的可靠运输协议。
TCP working mechanism. TCP ( Transmission Control Protocol ) is the Internet transport layer, connection-oriented reliable transport protocol. (2012-05-08, WORD, 6KB, 下载4次)
毕业设计-关于网络路由技术的研究:基于TCP/IP协议的Internet已逐步发展成为当今世界上规模最大、拥有用户和资源最多的一个超大型计算机网络，TCP/IP协议也因此成为事实上的工业标准。IP网络正逐步成为当代乃至未来计算机网络的主流。IP网络是由通过路由设备互连起来的IP子网构成的，这些路由设备负责在IP子网间寻找路由，并将IP分组转发到下一个IP子网。针对目前出现的，对提高路由器性能起关键作用的几项新技术，分析网络路由技术的。
Graduation- on the Network Routing Technology: Based on TCP/IP protocol Internet has gradually developed into the world' s largest, has the most users and resources of a large computer network, TCP/IP protocol has become the de facto industry standard. Modern IP networks are becoming mainstream and even the future of the computer network. IP network is the interconnection of equipment up by routing IP subnet form, these routing device for routing in IP subnets to find, and IP packet forwarding to the next IP subnet. Appears for the present, to improve the performance routers play a key role in several new technologies, analysis of network routing technology. (2010-06-08, WORD, 19KB, 下载10次)