板面图1
开放式PLC实验平台
摘要：PLC实验平台是各大院校控制类专业使用比较广泛的用来模拟PLC控制的一种模拟学习实验装置，由于PLC的更新换代，实验平台的设备出现了不兼容问题，本文针对PLC实验平台兼容性问题进行研究。
根据PLC实验平台的实验原理，设计了其的整体结构，划分了主机模块、扩展模块和其他外接设备的安装区域，并提出了通过扩展模块的相关功能实现实验平台硬件方面的不兼容问题，有效的解决了两种型号PLC的兼容性问题及其与不同类型的外部设备连接问题。
通过GX developer软件编写了一个电机正反转的程序，并对此程序进行PLC类型转化，从软件方面实现了不同类型PLC的兼容问题，同时验证了本文所设计的开放性实验平台的可行性。
关键词：实验平台、扩展模块、特殊功能模块、PLC、编程。
Open PLC experiment platform
Abstract：The PLC experimental platform is a kind of simulated learning experiment devicewhich iswidely used to simulate the control of PLC invarious colleges and universities. Because of the renewal of PLC, the equipment of the experimental platform is incompatiblewith each other. In this paper, the compatibility of PLC experimental platform is studied.
According to the experimental principle of PLC experimental platform, thewhole structure is designed, and the installation area of host module, extension module and other external equipment is divided. The hardware incompatibility of the experimental platform is realized by extending the function of the module,which effectively solves the compatibility problem of the two types of PLC and their connectionwith different types of external devices.
Through GX developer software, a program of forward and reverse rotation of motor iswritten, and the program is transformed into PLC type. The compatibility of different types of PLC is realized from the aspect of software. At the same time, the feasibility of the open experiment platform designed in this paper isverified.
Keywords : Experimental platform, extension module, special function module PLC, programming.
目录
1绪论1
1.1背景及其研究意义1
1.2 PLC的发展阶段1
1.3本章小结2
2、开放式PLC实验平台中的PLC主机及其外部设备3
2.1 PLC的控制原理及其各结构间的关系3
2.1.1开放式PLC实验平台的PLC控制原理3
2.1.2 PLC主机格结构之间的关系4
2.2开放式PLC实验平台的外部设备5
2.2.1输入端口的连接设备5
2.2.2 PLC输入/输出（I/O）端口连接元器件7
2.2.3开放式PLC实验平台的硬件结构及其平台面板示意图8
3、PLC实验品台兼容性问题的解决方法——硬件12
3.1 PLC扩展模块型号的选择12
3.1.1以输入/输出点数选择PLC编程类型12
3.1.3扩展模块的作用16
4解决PLC实验平台兼容性问题——软件17
4.1 PLC的仿真软件—GX Developer的介绍17
4.1.1 GX Developer的适用范围17
4.2 GX Developer的操作规范及解决方法步骤18
4.2.1GX Developer的操作规范18
4.3以GX Developer软件中的PLC类型转换解决兼容性问题18
4.4小结20
5、总结展望21
附录25
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设计目录
设计所包含文件
设计字数统计
摘要部分
