自动售货机PLC 设计 目录 一、引言··································································1 二、控制要求······························································2 三、设计任务······························································2 四、系统总体方案设计方案 4 .1 系统硬件配置及组成原理··············································3 4.2 系统变量定义及分配表·················································3 4.3 系统接线图设计·······················································4 4.4 系统可靠性设计························································4 五、控制系统设计 5.1 控制程序流程图设计····················································5 5.2 控制程序时序图设计····················································6 5.3 控制程序设计思路······················································7 5.4 编程系统的调试························································7 5.5 创新设计内容···························································7 六、上位监控系统设计 6.1 PLC 与上位监控软件通讯················································8 6.2 上位监控系统组态设计··················································8 6.3 实现的效果················...
