你了解一次性环保餐具设备控制系统吗?

　　The successful research and development of disposable environmental tableware equipment control system mainly depends on the following aspects:

　　1.需求分析相对清晰。需求分析是系统开发的基础，明确的需求分析是明确业务流程和系统功能的关键。

　　1. The demand analysis is relatively clear. Requirement analysis is the basis of system development, and explicit requirement analysis is the key to clarify business process and system function.

　　2.在设计上充分考虑了操作简单、维修方便和可靠性晑请求。控制面板设计简单明了，PLC选择合理，资源分配设计合理。

　　2. The simple operation, convenient maintenance and reliability requirements are fully considered in the design. The control panel design is simple and clear, PLC selection is reasonable, and resource allocation design is reasonable.

　　3.充分考虑注塑机内部结构和功能要求，采用简单清晰的硬件布线设计。

　　3. Fully consider the internal structure and functional requirements of the injection molding machine, and adopt simple and clear hardware wiring design.

　　4.在控制软件设计中，合理选择程序结构，采用指令步进+高阶指令程序结构，解决了扫描时间过长的问题。

　　4. In the design of control software, the program structure is selected reasonably, and the problem of too long scanning time is solved by using the instruction step + high order instruction program structure.

　　下面我们详细了解一下餐具设备控制系统的组成部分:

　　Now let's have a detailed understanding of the components of the tableware equipment control system:

　　即控制面板:

　　I.e. control panel:

　　1.一次性餐具设备控制面板的设计主要考虑系统控制操作的便利性，避免误操作;此外，还需要考虑系统硬件布线的便利性、系统线路维护以及面板的整体美观性。

　　1. The design of the control panel of disposable tableware equipment mainly considers the convenience of system control operation to avoid misoperation; in addition, the convenience of system hardware wiring, system circuit maintenance and the overall aesthetics of the panel need to be considered.

　　2.资源配置设计

　　2. Resource allocation design

　　资源分配主要包括输入输出点的确定，相应的功能按钮，功能描述等。详见表1。为了更清楚地描述资源分配，该表还列出了PLC内部的一些资源分配，包括时间继电器和中间继电器。

　　Resource allocation mainly includes the determination of input and output points, corresponding function buttons, function descriptions, etc. See Table 1 for details. In order to describe resource allocation more clearly, the table also lists some resource allocation within PLC, including time relay and intermediate relay.

　　3.硬件电路及软件设计

　　3. Hardware circuit and software design

　　硬件电路设计相对简单，可以根据资源表对PLC进行外部布线设计。软件设计相对复杂，有必要绘制软件程序流程图。从图中可以看出，控制程序主要有点动、自动和单步执行三个分支。

　　The design of hardware circuit is relatively simple, and the external wiring of PLC can be designed according to the resource table. The software design is relatively complex, so it is necessary to draw software program flow chart. As can be seen from the figure, the control program mainly has three branches: inching, automatic and single step execution.

　　一次性环保餐具设备系统控制程序使用供应商PFSOFT开发工具开发,PFSOFT软件安装在PC, PC和PLC相连,打开PFSOFT开发接口,编写LC控制梯形图程序下载到PLC梯形图程序,可以模拟在PLC调试,调试平台采用“电气控制与PLC实验平台开始采用传统编程控制指令,虽然在功能上没有问题，但是功能比较复杂，程序比较长，使得PLC对程序的扫描时间太长，不满足成型机控制的要求。摒弃了传统的控制指令结构，采用步进指令+高阶指令的程序结构，使程序结构更加清晰，程序长度大大缩短，程序的扫描时间满足控制要求。

　　The control program of disposable environmental protection tableware equipment system is developed by pfsoft development tool of the supplier. Pfsoft software is installed in PC, PC and PLC are connected, pfsoft development interface is opened, LC control ladder program is compiled and downloaded to PLC ladder program, which can simulate debugging in PLC. The debugging platform adopts "electrical control and PLC experimental platform start to use traditional programming control instructions, Although there is no problem in function, but the function is complex and the program is long, which makes PLC scan the program too long and does not meet the requirements of molding machine control. The traditional control instruction structure is abandoned, and the program structure of step instruction + higher-order instruction is adopted to make the program structure clearer, the program length greatly shortened, and the scanning time of the program meets the control requirements.