摘 要
自动售货机控制系统主要按照售货机基本工艺设计需求,对系统进行八种饮料的售货设计,通过调试和仿真达到设计工艺的要求,满足设计的需求。系统主要通过可编程控制器控制方式进行设计,在分析该系统的工艺要求基础上,提出详尽的控制策略和总体设计思路。系统主要由西门子S7-200可编程控制器、传感器检测单元、电磁阀等组成,系统分为总体设计、硬件图纸设计、软件流程及程序设计以及程序仿真设计等。在总体设计中对系统工艺进行详细分析,并提出总体设计的思路;在硬件设计中重点对PLC及其他接线进行详细设计和分析;在软件设计中,重点对程序流程进行分析,并完成软件程序设计。系统设计通过仿真设计和调试,达到了设计的基本控制要求,控制逻辑清晰,功能实现满足了工艺的需求。
关键词:自动售货机;可编程控制器;仿真设计
ABSTRACT
The control system of vending machine mainly designs kinds of beverage according to the basic process design requirements of vending machine. Through debugging and simulation, it achieves the requirements of design process and meets the design requirements. The system is mainly designed by PLC control mode. Based on the analysis of the process requirements of the system, the detailed control strategy and overall design idea are proposed. The system is mainly composed of programmable controller, sensor detection unit, solenoid valve, etc. the system is divided into overall design, hardware drawing design, software flow and program design and program simulation design, etc. In the overall design, the system process is analyzed in detail, and the overall design idea is proposed; in the hardware design, the PLC and other wiring are mainly designed and analyzed in detail; in the software design, the program flow is mainly analyzed, and the software program design is completed. Through simulation design and debugging, the system has reached the basic control requirements of the design.
Key words: vending machine; PLC; simulation design
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