目录第一章绪论....................................................................................................................................-1-1.1PLC控制在国内外的发展近况........................................................................................-1-1.2基于PLC的压力过程控制系统的发展前景...................................................................-2-1.3MCGS6.2软件...................................................................................................................-2-1.4设计目的和要求..............................................................................................................-2-第二章基于PLC的压力过程控制系统方案................................................................................-4-2.1设计方案..........................................................................................................................-4-2.1.1设计方案..............................................................................................................-4-2.1.2控制阀的选择......................................................................................................-5-2.1.3控制方式的选择..................................................................................................-6-2.2控制算法..........................................................................................................................-7-2.2.1控制算法的选择..................................................................................................-7-2.2.2PID控制的原理和特点........................................................................................-8-2.2.3PID控制器的参数整定........................................................................................-9-第三章软件部分的实现..............................................................................................................-11-3.1MCGS组态软件................................................................................................................-11-3.1.1组态软件的介绍.................................................................................................-11-3.1.2国内组态软件的比较与选择.............................................................................-11-3.2组态软件的应用............................................................................................................-13-3.2.1MCGS软件编程....................................................................................................-13-3.3.2MCGS软件连接设置............................................................................................-15-3.3FX2N编程软件的应用....................................................................................................-21-3.3.1PLC编程指令......................................................................................................-21-3.3.2控制程序的编写................................................................................................-22-第四章硬件部分实现..................................................................................................................-26-4.1PLC特点.........................................................................................................................-26-4.2FX2N特殊功能模块的应用...............................................................
